ELECTRICAL NCCER TEST STUDY GUIDE QUESTIONS
AND ANSWERS SURE A+
✔✔A current transformer has a rating of 4000:5. If 2000 amps load is on the primary,
the secondary output would produce: - ✔✔2.5 amps
✔✔A 1500 KVA three-phase transformer has a secondary voltage of 480/277. What is
the secondary full load amperage - ✔✔
✔✔Type LB conduit body has the cover on: - ✔✔the back
✔✔What is the purpose of lockout/tagout? - ✔✔prevent operation
✔✔Why should the proper rope be selected for a cable pull? - ✔✔to maximize safety
✔✔An electrician that attempts to install or remove energized fuses will be exposed to
the risk of an electrical shock and an electrical: - ✔✔arc.
✔✔What is the approximate developed length of a 40" radius 90" bend? - ✔✔63
✔✔Which of the following is the classified location where combustible dust may be
present? - ✔✔Class I Div I
, ✔✔Which of the following is the classified location where combustible fibers are always
present? - ✔✔Class III, Div
✔✔When installing more than one ground rod, what is the MINIMUM spacing between
rods? - ✔✔6 ft.
✔✔How does a battery produce voltage? - ✔✔electromagnetism
✔✔As the load decreases on a squirrel cage induction motor, its power factor: -
✔✔increases
✔✔A voltage source of a circuit provides 240 volts and draws 48 amps. How much
resistance is in the circuit? - ✔✔5 ohms
✔✔When re-setting a circuit breaker, where should the worker stand? - ✔✔on the
handle side
✔✔What size of wire is needed for a 120V circuit 215 feet long one way with a load of
39 amps - ✔✔#6
✔✔Which of the following conductors has the LEAST resistance? - ✔✔#6
✔✔What is the primary consideration in selecting the rope for a cable pull? - ✔✔low
stretch
✔✔When installing 4/0 and larger cables in a cable tray, the tray width must NOT be
less than the sum of the cable: - ✔✔diameter
✔✔Rubber personnel protective insulating equipment must be marked with the
appropriate voltage rating and: - ✔✔current rating
✔✔Why should the test leads of a "megger" NEVER be touched by anyone when in
use? - ✔✔it could result in an electrical shock
✔✔Eight incandescent lightning fixtures are to be installed. Each fixture is 120 volts,
with a 200-watt lamp. What is the total connected load? - ✔✔13.3 amps
✔✔A lightning outlet symbol in the shape of a circle indicated a: - ✔✔incandescent
fixture
✔✔The material between the capacitor plates in which an electric field appears is the: -
✔✔dielectric
AND ANSWERS SURE A+
✔✔A current transformer has a rating of 4000:5. If 2000 amps load is on the primary,
the secondary output would produce: - ✔✔2.5 amps
✔✔A 1500 KVA three-phase transformer has a secondary voltage of 480/277. What is
the secondary full load amperage - ✔✔
✔✔Type LB conduit body has the cover on: - ✔✔the back
✔✔What is the purpose of lockout/tagout? - ✔✔prevent operation
✔✔Why should the proper rope be selected for a cable pull? - ✔✔to maximize safety
✔✔An electrician that attempts to install or remove energized fuses will be exposed to
the risk of an electrical shock and an electrical: - ✔✔arc.
✔✔What is the approximate developed length of a 40" radius 90" bend? - ✔✔63
✔✔Which of the following is the classified location where combustible dust may be
present? - ✔✔Class I Div I
, ✔✔Which of the following is the classified location where combustible fibers are always
present? - ✔✔Class III, Div
✔✔When installing more than one ground rod, what is the MINIMUM spacing between
rods? - ✔✔6 ft.
✔✔How does a battery produce voltage? - ✔✔electromagnetism
✔✔As the load decreases on a squirrel cage induction motor, its power factor: -
✔✔increases
✔✔A voltage source of a circuit provides 240 volts and draws 48 amps. How much
resistance is in the circuit? - ✔✔5 ohms
✔✔When re-setting a circuit breaker, where should the worker stand? - ✔✔on the
handle side
✔✔What size of wire is needed for a 120V circuit 215 feet long one way with a load of
39 amps - ✔✔#6
✔✔Which of the following conductors has the LEAST resistance? - ✔✔#6
✔✔What is the primary consideration in selecting the rope for a cable pull? - ✔✔low
stretch
✔✔When installing 4/0 and larger cables in a cable tray, the tray width must NOT be
less than the sum of the cable: - ✔✔diameter
✔✔Rubber personnel protective insulating equipment must be marked with the
appropriate voltage rating and: - ✔✔current rating
✔✔Why should the test leads of a "megger" NEVER be touched by anyone when in
use? - ✔✔it could result in an electrical shock
✔✔Eight incandescent lightning fixtures are to be installed. Each fixture is 120 volts,
with a 200-watt lamp. What is the total connected load? - ✔✔13.3 amps
✔✔A lightning outlet symbol in the shape of a circle indicated a: - ✔✔incandescent
fixture
✔✔The material between the capacitor plates in which an electric field appears is the: -
✔✔dielectric
