ELECTRICAL CERTIFICATION TEST SCRIPT
2026 QUESTIONS AND SOLUTIONS
COMPREHENSIVE STUDY SHEET FULL
PRACTICE SET 400
◉ 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.
2026 QUESTIONS AND SOLUTIONS
COMPREHENSIVE STUDY SHEET FULL
PRACTICE SET 400
◉ 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.
