Apprentice Lineman Complete Practice Test 2026

Browse all practice questions for the Apprentice Lineman General Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

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How backfeed occurs in electrical systems and what causes reverse power flowHow can backfeed occur?Understanding capacitive reactance: how capacitance opposes AC current and causes phase shiftsWhat is the opposition to the flow of current in an AC circuit due to capacitance called?

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

Apprentice Lineman General Practice Test

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