NCCER ELECTRICAL LEVEL 3 MODULE 6
DISTRIBUTION EQUIPMENT 2026 ACTUAL
TEST COMPLETE QUESTIONS AND
VERIFIED ANSWERS GUARANTEED PASS
GRADED A+
⩥ Which of the following is a 90 degree, explosion proof fitting?
Answer: GUAL
⩥ What is a dropout plate?
Answer: Metal plate with a curved surface for cable to follow as it
passes from the tray
⩥ All of the following are common service voltages in the United States
EXCEPT:
Answer: 372/575 3-PHASE, 4-WIRE
⩥ What does a GFCI breaker do?
Answer: Opens a circuit to prevent operation of an electrical device
⩥ What will happen when one or more coils in a winding are grounded?
Answer: The motor will automatically blow fuses
,⩥ Eight incandescent lighting fixtures are to be installed. Each fixture is
120- volts, with a 200-watt lamp. What is the total connected load?
Answer: 13.3 amps
⩥ The must be grounded in a bussed gutter if used as the main service
equipment.
Answer: Neutral busbar
⩥ When wall mounting cable tray, ensure that
Answer: The building structure is strong enough to support the tray
system
⩥ The purpose of sealing cable ends when reels of cable are in storage is
Answer: To keep moisture from creeping in
⩥ The outer covering on liguid-tight flexible metal conduit is used for
Answer: A moisture seal
⩥ A good electrical connection should
Answer: Be mechanically and electrically secure
⩥ The symbol normally used for duplex
,Answer: Circle with two parallel lines drawb through it
⩥ Disconnecting means are covered in
Answer: NEC Section 110-22
⩥ In relation to switches, the term throw refers to the
Answer: Number of internal operations that a switch can perform
⩥ A 3-phase, 4-wire, 480v service requires ______ current
transformer(s)
Answer: 3
⩥ Services conductors and equipment are covered in
Answer: NEC Article 230
⩥ The NEC required that all receptacles installed on 25 amp and 20 amp
branch circuits be ______ receptacles
Answer: Grounding
⩥ A transformer with the primary of 400 turns and a secondary of 300
turns has a _____
Answer: Step-down turns ratio of 4:3
, ⩥ The circular mil is based on the
Answer: Cross-sectional area of the wire
⩥ Of the termination classes listed below, ____ is the only one that
provides a seal against external elements.
Answer: Class 1
⩥ Unless otherwise noted. the calculations in AC circuits _____ values.
Answer: Rms
⩥ When the coil turns are increased the _____
Answer: Induced voltage is increased
⩥ As the temperature surrounding a self-regulating heating cable rises,
the ____
Answer: Resistance of the polymeric core increases
⩥ The motor type that has the highest starting torque is the ____ motor.
Answer: Capacitor-start
⩥ For a given number of poles, the ____ determines the speed of an AC
motor.
Answer: Frequency
DISTRIBUTION EQUIPMENT 2026 ACTUAL
TEST COMPLETE QUESTIONS AND
VERIFIED ANSWERS GUARANTEED PASS
GRADED A+
⩥ Which of the following is a 90 degree, explosion proof fitting?
Answer: GUAL
⩥ What is a dropout plate?
Answer: Metal plate with a curved surface for cable to follow as it
passes from the tray
⩥ All of the following are common service voltages in the United States
EXCEPT:
Answer: 372/575 3-PHASE, 4-WIRE
⩥ What does a GFCI breaker do?
Answer: Opens a circuit to prevent operation of an electrical device
⩥ What will happen when one or more coils in a winding are grounded?
Answer: The motor will automatically blow fuses
,⩥ Eight incandescent lighting fixtures are to be installed. Each fixture is
120- volts, with a 200-watt lamp. What is the total connected load?
Answer: 13.3 amps
⩥ The must be grounded in a bussed gutter if used as the main service
equipment.
Answer: Neutral busbar
⩥ When wall mounting cable tray, ensure that
Answer: The building structure is strong enough to support the tray
system
⩥ The purpose of sealing cable ends when reels of cable are in storage is
Answer: To keep moisture from creeping in
⩥ The outer covering on liguid-tight flexible metal conduit is used for
Answer: A moisture seal
⩥ A good electrical connection should
Answer: Be mechanically and electrically secure
⩥ The symbol normally used for duplex
,Answer: Circle with two parallel lines drawb through it
⩥ Disconnecting means are covered in
Answer: NEC Section 110-22
⩥ In relation to switches, the term throw refers to the
Answer: Number of internal operations that a switch can perform
⩥ A 3-phase, 4-wire, 480v service requires ______ current
transformer(s)
Answer: 3
⩥ Services conductors and equipment are covered in
Answer: NEC Article 230
⩥ The NEC required that all receptacles installed on 25 amp and 20 amp
branch circuits be ______ receptacles
Answer: Grounding
⩥ A transformer with the primary of 400 turns and a secondary of 300
turns has a _____
Answer: Step-down turns ratio of 4:3
, ⩥ The circular mil is based on the
Answer: Cross-sectional area of the wire
⩥ Of the termination classes listed below, ____ is the only one that
provides a seal against external elements.
Answer: Class 1
⩥ Unless otherwise noted. the calculations in AC circuits _____ values.
Answer: Rms
⩥ When the coil turns are increased the _____
Answer: Induced voltage is increased
⩥ As the temperature surrounding a self-regulating heating cable rises,
the ____
Answer: Resistance of the polymeric core increases
⩥ The motor type that has the highest starting torque is the ____ motor.
Answer: Capacitor-start
⩥ For a given number of poles, the ____ determines the speed of an AC
motor.
Answer: Frequency
