Apprentice Lineman General Practice Test

These questions are part of the practice quiz. Start practicing

• What is the first step to take in an emergency situation according to first aid principles?
• How much buck and boost is a typical distribution step regulator capable of providing to the system?
• What is the main purpose of a distribution transformer?
• In a circuit, current is directly proportional to voltage and inversely proportional to what?
• In treating shock, lying the person down with their head lower than their feet is aimed at:
• What is the formula for voltage in a parallel circuit?
• In which situation is an Ohm's law most applicable?
• What does tracking refer to in electrical terms?
• How many windings does an auto-transformer have?
• What is the method used to determine the capacity of a closed bank?
• Can a line continue to operate even if it becomes grounded?
• A bank of transformers is rated based on which of the following criteria?
• What is the margin for secondary voltage?
• In a telephone circuit with components in series, if the current in the receiver is 0.5 amps and the resistances are known, how is the total voltage of the circuit determined?
• In a large-sized generator, which conductors are stationary?
• What is the relationship between heavy loading and the operation of capacitor banks?
• What is the definition of a watt?
• What must be done to the circuit after phasing out and before connecting two circuits?
• How many secondary windings does a 277/480 volt can have?
• Does an induction regulator have a stator wound winding and a rotor wound winding?
• If installing current transformers to control a capacitor bank, should they be placed on the line or load side?
• What percentage of a rope's strength does a knot typically have?
• What does treating a breaker as if it were energized imply?
• In what order should grounds be removed on a distribution or transmission line?
• What is the result of a malfunctioning power factor?
• To which bushing is the bridging reactor in a voltage step regulator attached?
• What does PPG stand for in electrical terminology?
• What type of electrical equipment utilizes a capacitor to function effectively?
• Why should PPGs be kept close to the work site?
• In a 7200/12470 wye/delta closed bank, what voltage would you expect after the first two cutouts are closed, if the neutral was not tied down?
• What is the process of inducing a voltage in a conductor by the action of a magnetic field called?
• What primarily determines earth resistance?
• Which of the following is the acronym for electromotive force?
• How is current in a transformer winding calculated when connected delta?
• What should you do immediately upon discovering an electrical incident?
• What two issues do fuses protect equipment against in electrical systems?
• What should be done to ensure safety when installing or managing transformer connections?
• In which direction does electric current traditionally flow in the context of electrical theory?
• In overhead distribution projects, which category encompasses 90% of the pots?
• What is a key reason for ensuring one finger of the bridging reactor always makes contact?
• What does 'NFPA' stand for?
• Why is it necessary to de-energize other equipment to adjust taps on a regulator?
• Who is primarily responsible for ensuring on-the-job safety?
• Where are lightning surge arrestors recommended to be installed on a step regulator?
• What are typical control categories for switched capacitor banks?
• To obtain lower voltage from a transformer, the secondary coil must be connected in what manner?
• What unit is used to measure the efficiency of transformers?
• What type of equipment can correct a lagging power factor in addition to regulators and substations?
• What is the efficiency of an open transformer bank using two 50 kVA pots?
• Which unit is used to measure work for mechanical power?
• What is the most important component on a transformer?
• What is the effect of a series circuit on the total resistance when more resistors are added?
• Which of the following is NOT a method to sag a conductor?
• What does maximum sag refer to in relation to environmental conditions?
• What is the definition of permeability in the context of magnetic materials?
• What should be done to prevent a deenergized line from becoming energized by induction?
• If a coil has been replaced in a type H or L hydraulic recloser, what must be done?
• How long should CPR be continued if breathing is not restored?
• Are most homes wired in series or parallel?
• What must be changed when hooking up a buck transformer compared to a booster transformer?
• A circuit that has only one current path is called what?
• What needs to be confirmed to parallel banks together aside from voltage and impedance?
• Assuming safe levels, which type of current would break a light bulb's filament quicker?
• What factors determine how the secondary of a transformer bank is connected?
• What is true about the relationship between voltage, current, and resistance?
• What type of regulator is typically more accurate and more costly?
• What is it called when a change of current in a coil induces an EMF in the same coil?
• How is inductance measured?
• What is the primary purpose of the iron core in a transformer?
• If you raise the tap on a transformer, what will happen to the secondary voltage?
• What three factors influence the extent of injury from an electrical contact?
• What is the purpose of the PEARL assessment in first aid?
• What is a possible consequence of having inadequate time delay settings in a step regulator?
• Which part is weaker in a new set of blocks, the rope or the blocks?
• What commonly destroys transformers in an overload situation?
• What does the acronym CSP stand for in electrical transformers?
• Where should current readings be taken on a WYE connected capacitor bank?
• What is the result of applying the wrong polarity to transformers?
• If an underground riser is low voltage, how does it terminate?
• The polarity mark of an instrument transformer is usually connected to which point?
• Where should you always sight your plumb bob when plumbing a pole?
• What type of switch is a DIP switch?
• What are the two types of counterpoise grounding?
• How does the conductivity of aluminum compare to that of copper?
• Who served as the first full-time President of the IBEW?
• In a wye underground system, what is required for shielded cable that is not needed for concentric cable?
• In transformer terminology, what does the term "CEMF" stand for?
• Why is it important to de-energize lines before working on them?
• In first aid, what does SOAP stand for?
• In which winding is the tap changer located in a transformer?
• What must be ensured before phasing and tying two electrical lines together?
• What is a common practice after using phasing sticks?
• What is the formula to find the average voltage of an AC circuit?
• How is 'load side' defined in electrical terminology?
• In a closed wye/delta bank, the "lighter" transformer carries what fraction of the single-phase load?
• What is the phase ratio of a typical Current Transformer (CT) setup?
• Which apparatus is specifically designed to measure conductor sag accurately?
• Can mutual inductance between two coils be increased by decreasing the distance between them?
• Besides shoring, what are two other methods for protection against cave-ins?
• In terms of light bulbs, which technology is considered more energy-efficient?
• What is the relationship between the diameter and the radius?
• What do M.A.D. distances refer to in the context of grounding practices?
• What is the appropriate mixture for cleaning up blood in a first aid scenario?
• In which component of a transformer does the magnetic field oscillate?
• Which device is used to convert DC back to AC current?
• A straight line drawn through the center of a circle that touches the circle in two places is called what?
• Why is it important to adequately ground neutral conductors?
• Which type of fault refers to a circuit that has become open and no current flows?
• What is a potential hazard when handling a suspended load from a helicopter?
• What distinguishes a Conventional transformer from a CSP transformer?
• What is the primary focus of the American Red Cross guidelines for administering rescue breaths during CPR?
• Transformers of 500 kVA and larger are classified as what type of transformers?
• Which winding in a transformer is stationary?
• What are the two main categories of capacitor banks used in electrical systems?
• What type of current is typically used in residential electrical systems?
• Without capacitors, would customers need to invest in larger or smaller bus for their equipment?
• Which formula accurately represents how to determine load factor?
• What is the purpose of a crane load chart?
• How should a current transformer be connected within a circuit?
• What is the typical loading capacity of a transformer?
• What is meant by backfeed in electrical systems?
• What potential hazard may arise from an unbalanced load when opening the primary neutral?
• When facing the secondary side of a transformer, which side is the H1 bushing always on?
• What term is used for the product of current and the specific coil in a transformer?
• What should a lineman do after testing underground cable for charge?
• What is the main purpose of a capacitor?
• When does a dead end structure see more weight from the tensioner/puller?
• What is usually the maximum temperature that the insulation in a transformer can tolerate?
• What is the recommended strength of a splice compared to the original rope?
• What action must be taken when paralleling secondary windings internally?
• What precaution should be taken when setting a pole near an energized line?
• What is a vector?
• In what position should CPR be administered to a victim?
• What is the specific resistance of aluminum?
• What does the term "PT" stand for?
• What is the definition of power in the context of work done?
• What percentages represent the conductivity, tensile strength, and weight of aluminum compared to copper?
• What is the sag formula for the timing method?
• If 5 consecutive lamps in a series street light circuit are not functioning, what could be a potential reason?
• What does the abbreviation "CT" represent in electrical terminology?
• How is the circumference related to the diameter of a circle?
• What voltage is typically used for a low voltage source on the primary side of a transformer during testing?
• What does the acronym EPZ stand for in lineman safety terms?
• What is the primary purpose of oil in a transformer?
• What is the maximum depth of an excavation allowed without the use of shoring?
• When the overload circuit breakers are open, what condition exists?
• Why is it important to test a line on a known energized source?
• In what year was the International Brotherhood of Electrical Workers (IBEW) formed?
• Can an excessive number of capacitors on a lightly loaded circuit lead to undesirable voltage levels?
• What shape is formed by the points equidistant from a fixed point?
• What relationship does "current lags" describe in an inductive circuit?
• What type of hitch is typically used for securing loads while allowing flexibility?
• Which feature is included in a CSP transformer that is not present in a conventional transformer?
• Why is it dangerous for a lineman to open a primary neutral?
• How many steps do step regulators usually provide?
• How can you identify the lighter pot in a transformer bank?
• Where in a circle is the radius measured from?
• What happens to the current if the resistance in a circuit increases while the voltage remains constant?
• What is the primary reason for grounding a load suspended from a helicopter?
• What does a low power factor indicate about the current in the circuit?
• Potential transformers are connected in __________ with the line.
• In a purely capacitive circuit, how does the current behave in relation to the voltage?
• In a balanced 3 phase, 4 wire circuit, if 10 amps flow in A phase, how many amps will flow in the other two phases?
• What percentage of total closed bank capacity is used to find the capacity of an open bank?
• When a time curve is described as quickly or slowly, what does that refer to?
• What is the purpose of injecting filler paste into the sleeve?
• Where is the primary fuse located on a CSP transformer?
• What can occur if the maximum allowable depth of excavation is exceeded?
• What is the total current drawn by a toaster, coffee maker, and refrigerator connected in parallel if they draw 2 amps, 3.5 amps, and 4.5 amps respectively?
• Where would you typically read the output voltage during the testing of a step regulator?
• What is primarily at risk if proper inspection of rubber goods is not performed?
• When using a wye secondary on any bank, what should be done with the neutral?
• What is the minimum length of climber gaffs required in Oregon?
• In rescue procedures, what does "ABC'S" stand for?
• What should be done before testing phasing sticks?
• What happens to the voltage on the neutral if it is tied down?
• What is the main goal of providing artificial respiration?
• What three aspects should mechanical jumpers be checked for?
• One joule of work done in one second is equivalent to how many watts?
• Inductance is measured in which unit and represented by which symbol?
• What voltages are classified as EHV?
• In parallel operation, which transformer carries less load?
• What is the mechanical advantage if the output force is twice that of the input force?
• A change of current in any conductor results in what effect?
• What does the term 'frequency' refer to in relation to AC current and voltage?
• What type of stress can porcelain withstand better?
• When parallel connections are made in transformers, what benefit is gained?
• What is the unit of electrical power?
• What feature allows a capacitor to be discharged in five minutes?
• A power factor of 100% is also referred to as what?
• When referring to a 2400 volt line, what value are we addressing?
• What is a common danger when using the fuzzing method?
• To boost the voltage by 5%, how should the secondary coils of a transformer be connected?
• How many orders of levers exist?
• What is the result of vector addition in an AC circuit?
• If the neutral connection of a capacitor bank is ungrounded, how will it operate?
• How should you treat a person who has fallen from a tower or pole?
• What type of fault involves direct contact between a phase conductor and the ground?
• What term describes when an AC circuit induces an electromotive force (EMF) in a nearby circuit?
• At what temperature in degrees Fahrenheit is a conductor under heavy electrical load typically considered to be at maximum sag?
• What are the two hands on the step indicator dial, besides the indicator hand, known as?
• Is achieving a unity power factor feasible in typical electrical systems?
• What is the first step in field testing primary phasing sticks?
• The ratio of current transformers is typically expressed as what value?
• What device is responsible for causing harmonic voltages?
• What does a maximeter indicate?
• What does the letter "F" commonly denote in capacitance measurements?
• Which of the following describes the types of street lighting?
• When phasing out two circuits, what should be checked first?
• Which method is regarded as the best for sagging messenger/strand cables?
• Which of these knots is specifically identified as NOT a granny knot?
• Which of the following light bulb types requires no ballast?
• What is the result of having resistors in parallel in a circuit?
• What are the three types of faults that can occur in overhead lines?
• What is the frequency of the electrical grid in the United States?
• What is the minimum wire size allowed for a ground connection?
• How does increasing current carrying capacity of conductors affect efficiency?
• What is the primary characteristic of a fixed capacitor bank?
• Which of the following is NOT a sign of shock?
• What is the formula to calculate Ruling Span?
• Why are underground transformers and their bushings hermetically sealed?
• If a capacitor has a misshapen case, how should you treat it when asked to re-fuse?
• How does a current transformer (CT) function?
• Which of the following is not a term associated with circles?
• How does a voltage regulator function?
• How much can one cubic foot of soil weigh?
• What is a potential risk of having PPGs placed farther from the work location?
• Which knot is used for securely tying down objects?
• What liquid is the tap changer switch immersed in?
• Why is an oil switch considered to extinguish arcs better than an air switch?
• What is the formula for determining the number of windings in relation to voltage?
• For a 10% voltage boost, how should the secondary coils of a transformer be connected?
• In a 6.6 amp series circuit with 55 lamps at 6000 lumens each, what is the total circuit voltage?
• What is the mathematical expression for calculating series resistance?
• Which of the following is the three most common sizes of capacitors used in the power industry?
• In what type of connection is a Potential Transformer (PT) typically used?
• What is the importance of knowing the internal connection methods when paralleling a transformer?
• If current leads voltage in a capacitive circuit, what does this relationship indicate?
• Which winding on a constant current transformer is moveable?
• What does the acronym RICE stand for in first aid?
• What is one of the main purposes of system protection devices like reclosers?
• How is a typical Selector Switch on a step regulator labeled?
• What is the equation for finding the number of turns in a coil when voltages are known?
• In transformer categorization, what is the purpose of determining polarity?
• What kind of force acts to stretch or pull an object?
• A generator supplies a current of 26 amps to three motors arranged in parallel. If the resistances of the motors are 24, 36, and 48 ohms respectively, what current is supplied to the motor with 24 ohms resistance?
• What is the method of attaching a pothead to the sheath of a cable?
• Which method is valid for testing if a line is dead before installing protective grounds?
• What is the term used to describe equivalent resistance in a magnetic circuit?
• If 12 series street lights are removed from a circuit, what happens to the voltage on the line?
• In a series circuit, how does the voltage split among the resistors?
• What is true about transformers regarding charge retention?
• What is the total loss in a transformer made up of?
• What happens to circuit resistance when the IR drop is decreased?
• 212 degrees Fahrenheit is equivalent to how many degrees Celsius?
• When a resistor is added in series to a circuit, how is the total resistance affected?
• What does the 'C' in RICE represent?
• When adjusting high tension transmission guy wire, which option is recommended for rigging the hoist?
• What is the rigging safety factor for new rope?
• When determining where to tie in the wire, from which point should measurements be taken?
• Does the size of the fuse link depend on the backup protection?
• What component is typically required for grounding in a single phase system?
• What action is required before locking out regulators during circuit work?
• What should be done to treat shock effectively?
• What is the relationship between effective value and peak value?
• What does ATO stand for?
• The distance around a circle is called the __________.
• What does ELI represent in relation to inductive circuits?
• Which NECA district covers outside work exclusively?
• What does 'IEEE' stand for?
• In first aid, what does the term 'SAMPLE' primarily focus on?
• In the sag formula, what does 'D' represent?
• Why do we float the neutral on closed wye/delta banks?
• An induced voltage always reacts how to the applied voltage?
• In a typical distribution step voltage regulator, are both windings connected electrically and magnetically?
• What is the formula for three phase power?
• 1 farad of capacitance stores how much charge at a potential difference of 1 volt?
• When is the best time to interrupt fault current?
• When using step regulators in series on a distribution circuit, which regulator should have the longer time delay?
• Which of the following represents the FAST acronym in first aid for stroke recognition?
• Which basic machine element consists of a circular object that rotates around a central axis?
• If the termination is high voltage, where does it terminate?
• What is the recommended method to control bleeding?
• What is one potential risk if the regulator is boosting or bucking before the by-pass switch is operated?
• What effect can electric shock have on muscles?
• What type of grounding uses a radial arrangement?
• What is the resistance of a wire that is one mil in diameter and one foot long called?
• Primary metering requires which types of transformers?
• Which acronym helps in assessing signs of a stroke?
• What is the unit of measurement for frequency?
• How much force may be required to pull out a worker's buried foot?
• What is the strength percentage of a splice in a rope?
• In a capacitive circuit, is the current leading or lagging?
• Does the initial impulse count as a return wave when sagging wire?
• The presence of capacitance in a circuit tends to resist changes in which of the following?
• What do most cutout fuse doors rated above 10,000 amps contain?
• What does the term "fault" refer to in electrical systems?
• Which type of current must protective grounding equipment withstand?
• Which effect occurs when a capacitor bank is introduced to a circuit?
• What are the two components that make up Iron Loss in a transformer?
• What does the area of a circular mill represent?
• What aspect of alternating current allows it to be transformed to different voltages?
• What do the labels on a subtractive transformer represent on secondary bushings?
• To what voltage is the use of non-shielded cable restricted?
• What is the formula for resistivity of a wire?
• What are the two basic checks when a capacitor bank is energized?
• What is the importance of measuring from the pinning point for the shoe/saddle of pin glass?
• What is the amperage of a 20 hp, 240 volt, single phase motor?
• What alternate name is given to the Ruling Span in electrical distribution?
• If a transformer is rated 201 kva or above, what polarity is it considered to have?
• During which loading condition are switched capacitor banks more likely to be energized?
• When a conductor is moved through magnetic lines of force, what happens?
• What does "unity" equate to in power factor terminology?
• What is the last thing you disconnect and the first thing you connect when managing any customer's service?
• What is the benefit of installing grounded shields on certain underground cables?
• What causes reactive power in electrical systems?
• How many watts are there in one horsepower?
• What must be done to rubber gloves after each use?
• What moves the windings apart on a constant current transformer?
• Which of the following is a potential effect of electric shock on the human body?
• What is the current flow in a circuit with a voltage of 120 volts and resistances of 19, 9, and 12 ohms in series?
• The magnetic field around a conductor changes in response to changes in what?
• What should always be determined before rigging a load?
• The flow of electrons in a circuit is driven by what?
• At what current are constant current transformers usually fixed?
• What is one requirement to check before paralleling two transformers?
• If circuit voltage is unknown, what is one method to find it?
• What is the most common cause for lost power in electrical systems?
• What is the primary factor that determines the size and type of equipment needed to supply a consumer?
• In what configuration is a booster transformer connected to the primary line?
• When rendering first aid, what should you prioritize to avoid becoming another victim?
• What does a no load tap changer in a transformer imply?
• What is corona in the context of electrical conductors?
• Does connecting a capacitor increase or decrease the voltage drop along the line?
• What is a critical safety measure to prevent electrical accidents in linework?
• What must be built to obtain 480 volts from a 277/480 volt can?
• In Washington, what is the minimum length of climber gaffs?
• What does LED stand for in lighting technology?
• What type of polarity do any transformer 200 kVA or smaller with primary voltage under 8,660 volts have?
• Which of the following units is used to measure capacitance?
• When does a sectionalizer operate to interrupt fault current?
• What does counterpoise grounding involve?
• Should an arrestor be energized before attaching the ground to the bottom?
• At what current does a reclosure typically operate?
• What type of electrical hazard can lead to fatal outcomes for an injured person?
• What applications are oil switches typically used for?
• What percentage of the full load current of a transformer is typically used for fuse chart calibration?
• In what scenario might you need to stretch a conductor to 130% for 20 minutes?
• How deep should a gain be cut when setting poles?
• What does "getting in series with a circuit" imply?
• When treating a floated neutral, how should it be handled?
• What is the unit of inductance called?
• If a motor is dropping voltage significantly due to a load, what might be a common remedy?
• Can mutual inductance be increased by placing coils on an iron core?
• What condition must be checked regarding tap settings before paralleling transformers?
• What materials are sheathes typically made of?
• Which principle does a transformer operate on?
• What is the effect of a capacitor on source current in a circuit?
• Primary metering in electrical circuits requires which types of transformers?
• What is the highest degree of protection in valve-type arrestors?
• In which configuration are the secondary coils of a booster transformer connected?
• Which of the following protects the system in a transformer bank?
• What is the first step in removing a regulator from service?
• Does capacitive current oppose or amplify inductive current?
• What is the maximum number of time curve settings a hydraulic recloser could have?
• Why is it important to ensure clean tight connections in grounding?
• What does corona refer to in electrical terminology?
• What would be the result of switching between AC and DC in terms of light bulb operation?
• What is the function of line hose?
• Can a sectionalizer be set to operate one, two, or three times?
• What type of reactance opposes current flow in a circuit due to induction?
• What is a requirement for a good ground?
• Which is larger? #1 copper or #2 aluminum
• Transformers with a rating of less than 500 kVA are referred to as what type of transformers?
• What is the purpose of the S-source bushing in a voltage regulator?
• How should the secondary coils be connected on a bucking transformer to drop the voltage by 5%?
• Which of the following is NOT a type of friction?
• How many degrees exist between phases in a three-phase electrical system?
• When setting poles on curves, corners, and strain points, how many inches deeper should they be set?
• Which type of regulator is primarily used on distribution systems?
• What does Power Factor represent?
• How are vitals assessed in first aid?
• What does SAMPLE stand for in a first aid context?
• What is the connection type for a typical delta connection in a three-phase system?
• How are the three bushings on a distribution step regulator labeled?
• What must be connected to the secondary of a current or potential transformer when it is energized?
• In the sag formula, what does 'T' represent?
• How are capacitors primarily rated?
• A material that has a very high resistance would be classified as what?
• What is the final step in taking an energized circuit out of service?
• What characteristic does the 'henry' unit of inductance depend on?
• What is the purpose of a potential transformer (PT)?
• What type of circuit is commonly known as a "voltage consumer"?
• Which time curve setting is faster?
• What is one of the methods used to sag wire accurately?
• What does the field intensity of a solenoid depend on?
• What is the procedure for checking rubber gloves in the field?
• Transformer terminals marked x1 and x2 are indicative of which terminals?
• Which of the following describes the effect on resistance when additional resistors are added in series?
• Does a capacitor retain a charge after being de-energized?
• How is the term 'line side' best defined?
• What is the typical function of a transformer in an electrical system?
• What does 'NEC' refer to in electrical standards?
• When removing equipment from service, what is crucial to limit time exposed to circulating current?
• What symbolizes a steep retarded timing in a recloser sequence?
• Which statement correctly describes the function of regulators in a circuit?
• What is the relationship between voltage and frequency in an AC circuit?
• What signifies that a coil has an inductance of 1 henry?
• What is the other winding called in a regulator that is connected to the induced voltage?
• What is the symbol used to represent capacitance?
• What is a primary indicator to check for when examining an injured person?
• Which pot will hog the load in a bank setup?
• How is resistance calculated in a parallel circuit?
• If pressing a stirrup for a hotline clamp jumper, which side should it be pressed on?
• Electrical energy is transformed into what when current flows through a resistor?
• What are the primary reasons for installing capacitors in an electrical system?
• What is a guy in electrical work?
• If a counter registers more operations for one regulator than the others, what might this indicate?
• What are the two basic types of distribution voltage regulators?
• What does capacitance oppose in a circuit?
• For what purpose is a current transformer specifically used?
• Is there such a thing as a perfect insulator?
• What should you do if the handle of an open recloser does not stay up?
• Which of the following losses is a component of Iron Loss in transformers?
• In electrical systems, what is a cutout fuse used for?
• Do type H and L hydraulic reclosers have source or load marked bushings?
• Which of the following factors does NOT affect the capacity of a capacitor?
• In a DIP switch setup, what is commonly adjusted?
• What is the primary problem associated with a "cornfield sag"?
• What is the expected outcome when calculating secondary amps for a transformer with series windings?
• What is the direction of flow of an induced EMF?
• What is the unit of current flow?
• Which component is essential for protecting electrical equipment from overload?
• What is a capacitor generally known as?
• What does the phrase "Dot to the pot" relate to in electrical installations?
• A generator equipped with a commutator delivers which type of current?
• When preparing to screw in an anchor, what is the first adjustment made with a kelly bar?
• Which materials allow electrons to travel freely?
• Which of the following types of fuses is most commonly used?
• Why do larger transformers, rated 100 kVA and above, typically have four external secondary bushings?
• How much voltage does a Class 3 rubber glove protect against?
• What is a key difference between a 3 wire, single phase and a 3 wire, three phase secondary system?
• What is the total resistance when three resistors of 6, 12, and 9 ohms are connected in parallel?
• What is the standard voltage to which a capacitor discharges according to industry standards?
• What equipment is used to convert AC to DC current?
• The voltage induced in the series winding depends on what aspect of the shunt winding?
• What is the test voltage for Class 2 rubber gloves?
• If a transformer is rated at 50 kVA, what is its equivalent in VA?
• What factors determine capacitance in capacitors?
• Why is it important to check for gases before entering a manhole?
• What is a common method of testing electrical equipment for safety?
• How are the primary and secondary windings of a transformer coupled?
• In AC circuits, the current can lead or lag by how many degrees?
• What is one of the key roles of a lightning arrestor?
• What can be done when installing the recloser mechanism attached to the top or head of the can?
• What type of current does not change after the addition of a capacitor?
• What is the effect of grounding on one phase of a Delta connected feeder?
• In an electrical system, does a heavy inductive load cause current to lag or lead?
• A device used to convert AC power from one combination of voltage and current to another is called what?
• On a transformer nameplate, what HV number indicates the rated secondary voltage?
• What does a higher test voltage indicate for rubber gloves?
• Decreasing the IR drop leads to an increase or decrease in line current?
• How is mechanical advantage calculated?
• When sling rigging a load, what happens to the sling leg load if the sling angle is decreased?
• Most fuse cutouts operate on which principle?
• When a circuit comprises only resistance, what will be the nature of its power factor?
• Should a load suspended from a helicopter be grounded before being handled?
• Where can you find polarity information for a transformer?
• How is electric current defined?
• Why does underground cable rated above 5000 volts require a grounded shield?
• What is essentially a megger?
• What does artificial respiration involve?
• What is the typical reading range of most maximeter scales?
• What is a transformer field test that you need to understand but will never execute in your career?
• What is the frequency of alternating current (AC) used in the United States?
• The symbol for inductance is represented by which letter?
• In electrical terms, what does the unit "Watt" represent?
• Which of the following describes the relationship between primary and secondary windings in an additive transformer?
• What is indicated by the expression "Power In = Power Out" in electrical systems?
• What should be avoided when dealing with a neutral system?
• What is the primary purpose of the running bowline knot?
• Which formula represents capacitive reactance?
• The electron has a _____ electrical charge.
• What ratio does an auto transformer usually have?
• What should be checked before working in a manhole?
• What type of generator is defined by having only two slip rings?
• Which pot should you energize first when reenergizing a bank?
• What is a good rule for how far away from the dead end/break-over structure to locate pulling equipment?
• What does the term 7.2 KV represent?
• What is the speed of light in miles per second?
• What is the first step in taking an energized circuit out of service?
• Which of the following describes the result of applying a DC voltage to a single primary bushing transformer?
• Which of the following is NOT a method used to cool transformers?
• What does a TCC curve stand for?
• If a material has few electrons that can travel freely, it is classified as what?
• What type of tools should be utilized when grounding a line?
• After a capacitor is connected to a circuit, what will happen to the load current?
• What is the formula to find the area of a circle?
• How does a capacitor affect line voltage?
• What is one function of the time delay feature in a step regulator?
• When determining the sag in lines, what is typically required?
• Transformers used for metering installations are commonly known as what type of transformers?
• When determining fuse size for a bank, which should be considered?
• A new rope has a breaking strength of 9,000 lbs. The safe working load when new should be _____ lbs.
• What is the first action taken when using a kelly bar attachment for an anchor installation?
• In first aid, what does the PEARL acronym refer to when assessing pupils?
• What does RMS stand for in electrical terms?
• What is a disadvantage of using old rope compared to new rope?
• What is the main purpose of installing capacitors on a distribution circuit?
• What does the fuzzing method involve when testing a line?
• When asked to rake a pole one half a pole top, where should the top of the plumb bob line be in relation to the pole?
• To achieve a 10% reduction in voltage on a buck transformer, how should the coils be connected?
• Can a type D hydraulic recloser rated for 14.4 KV be installed on a 7.2 KV line?
• Which of the following is NOT a basic control found in a distribution step regulator control panel?
• Which method can be used in extreme cases to control bleeding?
• Can a regulated circuit be tied to an unregulated circuit without any immediate action?
• When converting an underground cable to an overhead line, what is required?
• What is the maximum impedance difference permitted between two cans for paralleling?
• Why is it important to ask local knowledgeable linemen about primary voltage?
• What do inductive reactance and impedance primarily affect in an electrical circuit?
• What is the proper way to treat a secondary breaker on a CSP?
• Which action should be avoided when re-fusing a potentially explosive capacitor?
• What is the primary function of the neutral in a power system?
• What unit is used to measure resistance in an electrical circuit?
• What should you do if you notice a defect in the insulation of a jumper?
• Which is larger? 2/0 or 3/0
• Which of the following is not a way to sag wire accurately?
• Why is a grounded shield required for underground cables rated above 5000 volts?
• How much sag is observed after waiting for 15 returns with a total time of 27 seconds?
• What happens to the overall capacitance when capacitors are added in parallel?
• What does WLL stand for?
• When a circuit has a high portion of its impedance made up of inductive reactance, what type of power factor does it have?
• What percentage of the resistance surrounding an electrode is found within a radius of 6 feet to 10 feet?
• Capacitance measures the ability of a circuit to store what?
• What is the role of primary protective fuse link in CSP transformers?
• What is the purpose of the arc confining tube in fuse cutouts?
• A "cornfield sag" is usually described as?
• What can damage aluminum conductors?
• What does AWG stand for?
• What percentage of full load should a transformer be fused at?
• Where can an ATO be located?
• What does the white bushing of an instrument transformer indicate?
• What is the primary purpose of a Line Drop Compensator in a step regulator?
• Which of the following is a sign of shock?
• Besides voltage ratings and polarities, what other parameter must be identical when paralleling transformers?
• What does "getting in series" mean?
• What is the purpose of a lightning arrestor?
• Can an injured person die from electrical shock?
• What is the unit of measurement for capacitance?
• What is the meter multiplier if the nameplate of a PT reads 2400 to 120 and a CT reads 100 to 5?
• Using the primary voltage of 12,470 volts, how many primary amps would a 50 kVA transformer have?
• According to Ohm's Law, what is the formula for calculating voltage?
• What is the unit of electrical work?
• Which of the following is one way to increase the risk of injury in linework?
• What is the unit of measurement for electromotive force?
• What key factor must be considered when using a plumb bob to check the alignment of a pole?
• To achieve proper sag calculation for #2 ACSR, what should be the basis of your measurement?
• In an inductive circuit, is the current leading or lagging?
• What does an irrelevant number on a transformer nameplate signify?
• What is the formula to find the circumference of a circle?
• What type of motors are commonly used by utilities for power factor correction?
• Which type of series street light circuit uses only one wire?
• Which of the following is NOT a factor in determining the depth of a pole?
• What should be connected first when installing a transformer on a transformer bank?
• What is generally used to read more than the maximum of a maximeter scale?
• What is the formula used to determine the total current in a series circuit?
• What is the effect of connecting additional resistors in parallel on the overall circuit current?
• What is the critical first check to perform before tying two circuits together?
• Capacitive reactance is measured in which unit and represented by which symbol?
• What is shock in medical terms?
• Which frequency is commonly used on distribution systems in countries other than the United States?
• What factors determine necessary pole strength?
• What are the four principal types of electric discharge lamps?
• What effect does high temperature have on transformer insulation?
• What device is used to prevent a series circuit from being completely interrupted by a burn out of one lamp?
• What is a key precaution to take when attempting to free a victim from energized lines?
• In electrical terms, what does the abbreviation "AC" stand for?
• When capacitors are connected in series, what happens to capacitance?
• Which of the following is a correct statement about inductive reactance?
• Why is it necessary to re-test phasing sticks on known energized lines?
• In the relationship between work, power, and time, which formula is used?
• What is the main reason for using oil in transformers?
• In what unit is lamp output typically rated?
• In a voltage regulator, which winding is connected to the source voltage?
• Does static electricity and induction occur consistently every day?
• A reclosure is primarily operated by which of the following?
• What typically fails first on a customer's motor?
• What is the unit of measurement for inductance?
• What does ACSR stand for?
• What is the expected behavior of source current after connecting a capacitor?
• Can severe bleeding only be controlled by using a tourniquet?
• When working behind a recloser, what should a line crew do?
• What is the purpose of a stress cone on underground cable?
• What consideration is crucial when determining the sag of wires in different conditions?
• Which is the first step when paralleling two transformers?
• Can a power line on one side of the road induce voltage in a telephone circuit located on the opposite side?
• What happens to transmission lines that are not transposed?
• What should a lineman do when they need to screw in an anchor using a kelly bar?
• What is the term used to describe the number of cycles that occur in one second?
• Which class of valve-type arrestors is rated for up to 42 kV?
• Which of the following is a requirement of a good ground?
• What type of arrestor provides protection up to 650 volts?
• What happens when one phase of a Delta connected primary feeder is grounded?
• With 8 taps, two polarities available, and two bridging fingers, how many total steps are available in a typical distribution step regulator?
• What is the significance of marking abandoned bushings?
• In an induction regulator, which winding is mounted so that it can be rotated on its axis?
• What is an important property of insulating material in capacitors?
• What does backfeed refer to in electrical systems?
• Upon what basis should the adjustment of a plumb bob line be made when plumbing a pole?
• Which safety factor corresponds to a safe working load of 900 lbs. for supporting personnel?
• What steps should you take after removing a capacitor from service?
• When a capacitor bank is open and the neutral bus is floated, what voltage will appear on the ungrounded neutral bus?
• What is a common method to correct a lagging power factor?
• What should be done to verify a regulator is in the neutral position?
• What temperature must an incandescent filament be heated to in order to glow?
• Which regulatory body is responsible for workplace safety in the electrical industry?
• What is the primary function of a fuse cutout?
• What is the specific resistance of copper?
• How does one determine if a transformer is connected properly?
• How does a typical distribution step regulator achieve 16 steps up and 16 steps down with only 8 taps?
• How many amps does a heater that operates on 120 volts and uses 3600 watts draw?
• What measurement describes alternating current (AC) voltage in practical use?
• What is the purpose of armor rods in electrical systems?
• What polarity do most residential distribution transformers operate on?
• What is the general principle behind assessing the static electricity on transmission lines?
• What is another term for voltage drop?
• Does a red warning light on a CSP transformer indicate an existing overcurrent?
• What position should the pins be set to when removing a kelly bar out of the ground?
• Current transformers are connected in __________ with the line.
• What is the term for the opposition to current flow through a material?
• How many categories of hydraulic reclosers exist?
• Material and debris must not be placed within how many inches of an open trench in which a man can work?
• Which factor does NOT directly influence the effective value of a voltage line?
• In mechanical jumpers, what is important about the ferrule connection?
• Excessive vibration in conductors is often caused by?
• How can you find the circular mil cross section area of a wire?
• What is Real Power commonly referred to as?
• What are the three ways to protect yourself as an apprentice lineman?
• What allows LED bulbs to have a longer lifespan compared to traditional bulbs?
• In the context of electrical safety, what statement is true regarding grounding?
• What should be done after stringing conductors, as part of safety protocols?
• What is a mnemonic to remember the proper orientation of cable clips?
• According to codes, what is the maximum resistance allowed for a driven ground?
• How many degrees are there in one complete cycle of an AC sine wave?
• What type of fault occurs when there is contact between two phases in an overhead line?
• Who was the first president of the IBEW?
• Which term is synonymous with galvanic action?
• How many inches is one mill equal to?
• When capacitors are connected in parallel, what happens to capacitance?
• What two factors must be checked when selecting a pulling grip?
• What are the two possible sequences for phase arrangements?
• If a balanced 3-phase line is properly functioning, what is the amperage on the neutral?
• Which of the following describes the function of an insulator?
• Protective devices must always be replaced with one of the _____ type and _____ size.
• What does adjusting the pins to the middle position signify when working with a kelly bar?
• What is the voltage across transformer windings when connected wye?
• What does capacitance measure?
• What happens to the current when the voltage in a circuit is increased while the resistance remains the same?
• If the resistance in a circuit is halved, what happens to the current if the voltage remains constant?
• What is the main risk of electrical contact injuries?
• What is the total opposition to current flow in an AC circuit called, what is it measured in, and what is its symbol?
• In a series circuit, which quantity remains the same through all components?
• What position must the voltage regulator indicator be in before operating the regulator by-pass switch?
• Why does inductance have a greater effect on alternating current (AC) circuits than direct current (DC) circuits?
• What are the two main reasons for line loss in electrical systems?
• What is the formula for total current in a parallel circuit?
• What is the term for the highest value that a demand reaches?
• What does impedance represent in an AC circuit?
• What kind of tasks might require the use of protective equipment?
• What are the two different types of regulators?
• If using 145 pounds per cubic foot, what would be the weight of a horizontal layer of soil that is 6 feet long, 3 feet wide, and 2 feet deep?
• Which of the following is a type of lightning arrestor?
• What happens to your body and PPGs when resistance increases in an electrical system?
• What are the four main types of force?
• In relation to the top of the pole, where should the bottom of a raked plumb bob line be positioned?
• What type of faults account for 90% to 95% of all faults?
• Current transformers are connected in relation to the load?
• How many taps are built into the series winding of a typical distribution step regulator?
• What information is essential for reading a sag chart?
• In rigging, what should you rig for?
• In which year was the first incandescent bulb invented?
• Where is the overcurrent protective device located in a CSP transformer?
• Which two types of instrument transformers are commonly used?
• How should by-pass switches be managed when removing a regulator?
• If a type H or L hydraulic recloser is rated for 14.4 KV, can it operate on a 2.4 KV line?
• How can you verify primary voltage when working on a distribution line in an unknown area?
• What is the unit for measuring resistance and what symbol is used for it?
• What is the purpose of identifying and isolating before testing?
• What are the three primary considerations in assessing an injured person?
• What should be done with phasing sticks after use?
• What is the primary purpose of oil in a transformer?
• One horsepower is equivalent to how many watts?
• What should be checked on mechanical jumpers before using them?
• What is the role of overcurrent protective devices?
• What type of hammer should be used when removing a wedge grip?
• What does the hypotenuse of a power triangle represent?
• Does a type D hydraulic recloser have source or load marked bushings?
• What does the CMV (Contact Making Voltmeter) measure in a distribution step regulator?
• What fraction of the single-phase load is carried by each "power" pot in a closed wye/delta bank?
• What principle does a maximeter operate on?
• In a transformer setup, how should the secondary be connected to obtain higher voltage in single phase?
• Resistance in an electrical circuit is measured in units called _____.
• What sizes of capacitors are commonly used in the power industry according to power utilities?
• What must protective grounding equipment be capable of conducting?
• Will a sectionalizer interrupt fault current?
• Rubber goods should be used for what type of contact?
• What drives the tap changer switch in a regulator?
• What prevents a transformer from acting as a short circuit?
• How many phases are required to supply 3 phase power when using a Delta feeder?
• A straight line drawn from the center of a circle to its outer edge is called what?
• What are the three main parts of a transformer?
• How much lower are use voltages compared to test voltages in rubber gloves?
• Aside from KVA rating, what is another critical rating for all capacitors?
• For a subtractive 37.5 kVA can, what is the arrangement of secondary bushing labels?
• What is the symbol used for magnetic permeability in formulas?
• Which type of capacitance aids in improving voltage levels in a circuit?
• What is the resistance of 1000 feet of #10 copper wire?
• What is the primary function of a capacitor?
• What are the voltage ratings for Class 0 rubber gloves?
• What is the purpose of transposing transmission lines?
• What is the main purpose of grounding equipment?
• In a 3 phase, 4 wire system, the phase to phase voltage is how many times greater than the phase to ground voltage?
• A transformer that includes built-in overload and lightning protection is referred to as what?
• What is the turns ratio of a 50 kva transformer rated at 7200 - 120/240?
• When employing a Wye feeder, how many phases are required to supply 3 phase power?
• What is the appropriate method for bending hot sticks?
• In a delta connection, how does winding voltage compare with line voltage?
• What are the types of potheads typically used?
• What should you always do before grounding a line?
• What do you need on the secondary side of a transformer to create a "z-bank"?
• What is the primary use of a fuse in an electrical circuit?
• Why is maintenance required for synchronous motors used as condensers?
• What is the main purpose of capacitors in electrical circuits?
• When should a fuse interrupt fault current?
• What does ASTM stand for?
• What are the two primary enemies of transformers?
• What is another term for phase voltage?
• To obtain 120 volts from a 120/240 volt transformer while using both secondary windings, how must the windings be connected?
• What is the formula for calculating power factor (PF)?
• What are the basic components of a rope?
• If you know the current and resistance, which formula do you use to calculate power?
• Are capacitor banks a more cost-effective alternative for raising voltage than voltage regulators?
• Which pot is generally located in the middle of three in a closed bank?
• What is the effect of using a center tapped bridging reactor with two fingers in a voltage regulator?
• Which of the following is NOT one of the six basic machine elements?
• Impedance in a circuit is measured in which unit and represented by which symbol?
• Stockbridge dampers are designed to prevent what type of vibration?
• The sheet iron core of a transformer forms what type of circuit?
• What does a red light on a CSP transformer indicate?
• When facing the secondary side of a subtractive polarity transformer, which bushings are on the same side?
• What key factors must be known when sagging wire?
• What are the three amp readings that can be taken after a capacitor is connected?
• What does the 'A' in the timing sequence code for a recloser signify?
• Which type of sag refers to the sag after the conductor has settled and stretched?
• Why is bundling conductors done in electrical systems?
• What is one of the identified hazards of linework that can lead to fatalities?
• What must be done before opening a series circuit?
• Ohm's Law can be summarized using which symbols for each component?
• What does the amperage measure in an electrical circuit?
• Which splice is used to join two ropes of equal diameter?
• What occurs when the secondary side of a transformer is connected first?
• How many operations does a reclosure usually lock out after?
• The grounding for lightning arrestors should be what in relation to 25 ohms?
• How do you calculate the effective value of an AC circuit?
• In a Delta connection, what multiplier is used to calculate the required fuse size from primary amps?
• In which type of system should the SL bushing of a step regulator be grounded to the system neutral?
• What is the primary purpose of a pothead?
• What defines a watt in terms of electric power?
• What is one potential benefit of a hermetically sealed transformer?
• Which of the following is an example of a temporary fault?
• Which of the following is not part of the STOP acronym?
• Can a type D hydraulic recloser be closed without power?
• How often should rubber goods be visually inspected?
• How do you calculate the ruling span in electrical work?
• What is a consequence of using damaged rubber goods?
• Why does a voltage step regulator need a two fingered, center tapped bridging reactor?
• What does the term "line voltage" refer to?
• What type of connection is not concerned with the larger voltage number on a transformer nameplate?
• What does it indicate if a higher HV rated number is listed first on a transformer nameplate, such as 13200/7620?
• Ground rods should be long enough to reach which moisture level of the soil?
• What is the formula for power in a series circuit?
• What does the term "Alley Cat Bad Dog" help remember in transformer connections?
• What do voltmeters read when measuring voltage?
• What precaution should be taken before adjusting taps on a transformer?
• If there are 8 taps that can buck or boost 10% of the source voltage, what percentage does each tap represent?
• What does increasing the surface area of the internal plates of a capacitor do?
• What is the percentage step of each available adjustment in a typical distribution step regulator?
• When resistors are connected in parallel, how is the total resistance affected?
• What is the equational value of one watt in terms of horsepower?
• What safety measure should be taken when dealing with a swollen capacitor?
• What effect does a capacitor have on line current on the source side of the capacitor?
• What determines the order of a lever?
• How much can a booster transformer typically increase the line voltage?
• What are the two types of underground cable?
• Which winding in a step regulator is regulated?
• What is an essential characteristic of frequencies when paralleling transformers?
• What is the primary reason for using a neutral wire in a wye system?
• Which factors influence the required depth for pole installation?
• What is the industry standard for additive polarity transformers?
• In a three-phase power system, how many hot legs are needed along with a neutral?
• In electrical systems, what does "electrical insulation" primarily achieve?
• How does an incandescent lamp generally produce light?
• What is the regulation range of a step regulator?
• What does a megger primarily measure?
• Will cold weather slow the operation of a hydraulic recloser?
• What unit measures inductive reactance and what is its symbol?
• Why is it important to know the voltage ratings when paralleling transformers?
• What is a common benefit of switching capacitor banks in electrical systems?
• What does the term 'retarded' signify in the context of a recloser timing sequence?
• What is the significance of the symbol "L" in electrical measurements?
• In a step regulator, how is the primary winding connected to the line?
• Which type of friction occurs when two surfaces first begin to slide over each other?
• Wood poles are classified by which of the following criteria?
• A three phase four wire feeder is connected at the substation in what configuration?
• In an improper fraction, the denominator is typically __________ than the numerator.
• How is power factor defined?
• When the output voltage is 120/208, how are the secondaries connected?
• What does STOP represent in first aid procedures?
• What type of current do capacitors supply?
• Which term describes the factor of safety in relation to breaking strength?
• What is the primary use of a constant current transformer?
• Which type of lamp uses sodium gas to produce light?
• When used without mechanical output, synchronous motors are referred to as what type of condenser?
• What is the reason for looking for a reading of zero when phasing lines?
• What effect does increasing the voltage in a circuit have on the current, assuming resistance stays constant?
• In the case of a conflict between the blueprint and the specifications, which document holds greater authority?
• How is a Current Transformer (CT) typically connected in a circuit?
• What is used to protect direct burial cable from moisture and chemical injury?
• What happens to the total voltage across a parallel circuit as more branches are added?
• How many secondary bushings does a 277/480 volt can have?
• A change of current in one coil that induces voltage in a nearby coil is referred to as what?
• What position should a lineman avoid when setting pins while using a kelly bar?
• Which of the following defines the term "Voltage"?
• What is the main advantage of a pin type insulator?
• Which of the following is NOT a type of rope splice every lineman should know?
• What does the term "breaking strength" refer to?
• What is the equation used to calculate power in relation to voltage and current?
• What precaution should be taken after de-energizing pole top terminations?
• What type of sag refers to the sag applied by a line crew after hard siding and completing the stringing of the conductor?
• In an additive transformer, where is the X1 bushing located?
• What is produced when a conductor is moved through magnetic lines of force?
• How is Apparent Power calculated?
• Thirty 1.5 volt batteries connected in parallel is equivalent to how many volts?
• In the sag formula, what does 'N' represent?
• What is a common knot used in a rescue scenario?
• What happens to a voltage regulator if the capacitors fail?
• What does the bandwidth feature in a step regulator help control?
• After de-energizing a capacitor bank, how long must it remain off before it can be safely re-energized?
• What is the rationale behind choosing sloping as a method for protection against cave-ins?
• What is the unit of measurement for capacitance?
• How many current carrying conductors are typically necessary to supply three phase power to a residence?
• What kind of voltages do rubber gloves need to be tested against?
• What does conductor creep refer to?
• What does torque cause in a mechanical system?
• What must you confirm about both sides before phasing lines?
• What is the effective value of a standard 2400 volt line?
• If raising a transformer causes temporary excessive strain to the pole, what should be installed?
• What is the maximum safe temperature for transformer insulating material?
• What is the formula to find total power in a parallel circuit?
• What procedure must be taken before drilling the bottom holes of the X-braces and knee braces when ground framing?
• How does winding current compare with line current when transformers are connected wye?