ELECTRICIAN NCCER EXAM PREP SCRIPT 2026
FULL QUESTION SET APPROVED
◉ A cable rated for 5kv insulation can safely carry what maximum
voltage? Answer: 5000 volts
◉ Which of the following statements Describes the operating
features of a thermal overload relay? Answer: The greater the
overload, the shorter the time of tripping
◉ What is the primary consideration in selecting the proper rope for
a cable pull? Answer: Safety
◉ Why can a lead acid battery be an explosive hazard? Answer:
Hydrogen gas is produced during charge and discharge
◉ What is the largest size conductor that can terminate on a 20 amp
receptacle Answer: 12 awg
◉ Normally, the easiest place to reverse the leads to change the
direction of rotation of a 3-phase motor is at the Answer: Motor
starter
,◉ What maximum number of bends is allowed between fittings in
one conduit run? Answer: 4 quarter bends or 360 degrees
◉ What size wire is standard for a 120-volt motor control systems?
Answer: #14
◉ In all cases where live parts are normally exposed on the front of
switchboards or motor control centers the working space in front of
such equipment must be what minimum length? Answer: 3 FT
◉ What is the interrupting rating of a fuse Answer: The maximum
value off current that the fuse is designed to interrupt.
◉ What is the symbol for the primary side of a transformer?
Answer: H
◉ An electrical fitting can be made explosion proof in which of the
following ways? Answer: Using an amorphous sealed device
◉ A megger will be used to check a cable. The electrician must be
sure that the circuit is Answer: De-energized and locked, tagged out,
and tested
,◉ What is the function of a ballast on a fluorescent fixture ? Answer:
Steps up the voltage
◉ What is the primary purpose of P&ID Answer: Provide scale
drawings and piping and instrumentation control systems.
◉ Which of the following factors is used to control the speed of an
induction motor? Answer: Frequency
◉ A 10-inch offset at 30 degrees is been made. What is the distance
between center-to-center bends? Answer: 20 inches
◉ What is an acceptable protection techniques for electrical
equipment in hazardous location? Answer: Use duct-ignition proof
equipment
◉ What is the purpose of lockout/Tagout? Answer: Prevent
operation
◉ What test or equipment can be use to locate suspected short
circuit in 1 phase of a 3 phase motor? Answer: Megger
◉ A 1 line diagram with simplified symbols indicates the Answer:
Interconnections and component parts of an electrical circuit
, ◉ What will happen if moisture is inside a cad-weld mold while the
weld is being performed? Answer: The cadwel mold could explode
◉ What is produced in a conduit run by making 2 equal bends in
opposite direction? Answer: Offset
◉ Cable trays are usually supported by all of the following means
except? Answer: #9 wire
◉ 4-inch square boxes are available with all of the following depths
except? Answer: 1 inch
◉ What is installed at a expansion joint to provide a continuous
ground between 2 sections of cable tray? Answer: A bonding jumper
◉ What color identifies and insulated, grounded, number 4
conductors? Answer: Green
◉ What is it important to torque bolts when busbars are connected?
Answer: Decrease resistance on the connection
◉ All of the following are protective devices for motors except
Answer: Solenoid
FULL QUESTION SET APPROVED
◉ A cable rated for 5kv insulation can safely carry what maximum
voltage? Answer: 5000 volts
◉ Which of the following statements Describes the operating
features of a thermal overload relay? Answer: The greater the
overload, the shorter the time of tripping
◉ What is the primary consideration in selecting the proper rope for
a cable pull? Answer: Safety
◉ Why can a lead acid battery be an explosive hazard? Answer:
Hydrogen gas is produced during charge and discharge
◉ What is the largest size conductor that can terminate on a 20 amp
receptacle Answer: 12 awg
◉ Normally, the easiest place to reverse the leads to change the
direction of rotation of a 3-phase motor is at the Answer: Motor
starter
,◉ What maximum number of bends is allowed between fittings in
one conduit run? Answer: 4 quarter bends or 360 degrees
◉ What size wire is standard for a 120-volt motor control systems?
Answer: #14
◉ In all cases where live parts are normally exposed on the front of
switchboards or motor control centers the working space in front of
such equipment must be what minimum length? Answer: 3 FT
◉ What is the interrupting rating of a fuse Answer: The maximum
value off current that the fuse is designed to interrupt.
◉ What is the symbol for the primary side of a transformer?
Answer: H
◉ An electrical fitting can be made explosion proof in which of the
following ways? Answer: Using an amorphous sealed device
◉ A megger will be used to check a cable. The electrician must be
sure that the circuit is Answer: De-energized and locked, tagged out,
and tested
,◉ What is the function of a ballast on a fluorescent fixture ? Answer:
Steps up the voltage
◉ What is the primary purpose of P&ID Answer: Provide scale
drawings and piping and instrumentation control systems.
◉ Which of the following factors is used to control the speed of an
induction motor? Answer: Frequency
◉ A 10-inch offset at 30 degrees is been made. What is the distance
between center-to-center bends? Answer: 20 inches
◉ What is an acceptable protection techniques for electrical
equipment in hazardous location? Answer: Use duct-ignition proof
equipment
◉ What is the purpose of lockout/Tagout? Answer: Prevent
operation
◉ What test or equipment can be use to locate suspected short
circuit in 1 phase of a 3 phase motor? Answer: Megger
◉ A 1 line diagram with simplified symbols indicates the Answer:
Interconnections and component parts of an electrical circuit
, ◉ What will happen if moisture is inside a cad-weld mold while the
weld is being performed? Answer: The cadwel mold could explode
◉ What is produced in a conduit run by making 2 equal bends in
opposite direction? Answer: Offset
◉ Cable trays are usually supported by all of the following means
except? Answer: #9 wire
◉ 4-inch square boxes are available with all of the following depths
except? Answer: 1 inch
◉ What is installed at a expansion joint to provide a continuous
ground between 2 sections of cable tray? Answer: A bonding jumper
◉ What color identifies and insulated, grounded, number 4
conductors? Answer: Green
◉ What is it important to torque bolts when busbars are connected?
Answer: Decrease resistance on the connection
◉ All of the following are protective devices for motors except
Answer: Solenoid
