The electrical NCCER test Exam fully solved &
updated 2026(latest version verified for accuracy)
| 2026 Latest!!
Which Article of the NEC covers grounding? - CORRECT ANSWER-article 250
Which of the following is a 90 degree, explosion proof fitting? - CORRECT ANSWER-GUAL
What is a dropout plate? - CORRECT ANSWER-Metal plate with a curved surface for cable to follow
as it passes from the tray
Which of the following statements describes the operating features of a thermal overload relay? -
CORRECT ANSWER-The greater the overload, the shorter the time of tripping.
Normally, the easiest place to reverse the leads to change the direction of rotation of a 3-phase
motor is at the - CORRECT ANSWER-Motor Starter
What is the largest size conductor that can terminate on a 20amp receptacle? - CORRECT ANSWER-
12awg
Why can a lead acid battery be an explosive hazards? - CORRECT ANSWER-Hydrogen gas is
produced during charge and discharge
What MAXIMUM number of bends is allowed between fittings in one conduit run? - CORRECT
ANSWER-4 quarter bends or 360 degrees
What size wire is standard for a 120- volt motor control systems? - CORRECT 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? - CORRECT
ANSWER-3Ft
What is the interrupting rating of a fuse? - CORRECT ANSWER-The maximum value of current that
the fuse is designed to interrupt
,What is the PRIMARY purpose of P&ID? - CORRECT ANSWER-Provides scale drawings and piping
and instrumentation control systems
A "megger" will be used to check a cable. The electrician MUST be sure thát the circuit is - CORRECT
ANSWER-De-energized and locked, tagged out, and tested
What is the symbol for the primary side of a transformer? - CORRECT ANSWER-H
What is the function of a ballast in a flourescent fixture - CORRECT ANSWER-Steps up the voltage
An electrical fitting can be made explosion proof in which of the following ways - CORRECT
ANSWER-Using an amorphous sealed device
Cable trays are usually supported by all the following means EXCEPTS? - CORRECT ANSWER-#9
wire
A 1 line diagram with simplified symbols indicates the - CORRECT ANSWER-Interconnections and
component parts of an electrical circuit
What is the purpose of Lockout/Tagout? - CORRECT ANSWER-Prevents operation
Which of the following factors is used to control the speed of an induction motor? - CORRECT
ANSWER-Frequency
A 10-inch offset at 30 degrees is being made. What is the distance between center-to-center bends?
- CORRECT ANSWER-20 inches
What is an acceptable protection techniques for electrical equipment in hazardous locations? -
CORRECT ANSWER-Use duct-ignition proof equipment
What test or equipment can be used to locate a suspected short circuit in 1- phase of a 3-phase
motor? - CORRECT ANSWER-"megger"
, What will happen if moisture is inside a cadweld mold while the weld is being performed? -
CORRECT ANSWER-The cadweld mold could explode
What is produced in a conduit run by making 2 equal bends in opposite direction? - CORRECT
ANSWER-Offset
4 inch square boxes are available with all of the following depths EXCEPT - CORRECT ANSWER-1
inch
What is installed at an expansion joint to provide a continuous ground between 2 sections of cable
tray? - CORRECT ANSWER-A bonding jumper
What color identifies an insulated, grounded number 4 conductors? - CORRECT ANSWER-Green
Why is it important to torque bolts when busbars are connected? - CORRECT ANSWER-Decreases
resistance on the connection
All the following are protective devices for motors EXCEPT - CORRECT ANSWER-SOLENOID
Service conductors are sized based on what factor? - CORRECT ANSWER-The total calculated load
of the building
A holding contact na motor starter is normally connected in parallel with the - CORRECT ANSWER-
Start push button
The number of complete AC cycles per second is called the - CORRECT ANSWER-Frequency
Which of the following components is part of a dual element fuse - CORRECT ANSWER-Rejection
clip
The potential across the circuit is 480 volts and the current is 50 amps. What is the resistance of the
circuit? - CORRECT ANSWER-9.6 ohms
updated 2026(latest version verified for accuracy)
| 2026 Latest!!
Which Article of the NEC covers grounding? - CORRECT ANSWER-article 250
Which of the following is a 90 degree, explosion proof fitting? - CORRECT ANSWER-GUAL
What is a dropout plate? - CORRECT ANSWER-Metal plate with a curved surface for cable to follow
as it passes from the tray
Which of the following statements describes the operating features of a thermal overload relay? -
CORRECT ANSWER-The greater the overload, the shorter the time of tripping.
Normally, the easiest place to reverse the leads to change the direction of rotation of a 3-phase
motor is at the - CORRECT ANSWER-Motor Starter
What is the largest size conductor that can terminate on a 20amp receptacle? - CORRECT ANSWER-
12awg
Why can a lead acid battery be an explosive hazards? - CORRECT ANSWER-Hydrogen gas is
produced during charge and discharge
What MAXIMUM number of bends is allowed between fittings in one conduit run? - CORRECT
ANSWER-4 quarter bends or 360 degrees
What size wire is standard for a 120- volt motor control systems? - CORRECT 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? - CORRECT
ANSWER-3Ft
What is the interrupting rating of a fuse? - CORRECT ANSWER-The maximum value of current that
the fuse is designed to interrupt
,What is the PRIMARY purpose of P&ID? - CORRECT ANSWER-Provides scale drawings and piping
and instrumentation control systems
A "megger" will be used to check a cable. The electrician MUST be sure thát the circuit is - CORRECT
ANSWER-De-energized and locked, tagged out, and tested
What is the symbol for the primary side of a transformer? - CORRECT ANSWER-H
What is the function of a ballast in a flourescent fixture - CORRECT ANSWER-Steps up the voltage
An electrical fitting can be made explosion proof in which of the following ways - CORRECT
ANSWER-Using an amorphous sealed device
Cable trays are usually supported by all the following means EXCEPTS? - CORRECT ANSWER-#9
wire
A 1 line diagram with simplified symbols indicates the - CORRECT ANSWER-Interconnections and
component parts of an electrical circuit
What is the purpose of Lockout/Tagout? - CORRECT ANSWER-Prevents operation
Which of the following factors is used to control the speed of an induction motor? - CORRECT
ANSWER-Frequency
A 10-inch offset at 30 degrees is being made. What is the distance between center-to-center bends?
- CORRECT ANSWER-20 inches
What is an acceptable protection techniques for electrical equipment in hazardous locations? -
CORRECT ANSWER-Use duct-ignition proof equipment
What test or equipment can be used to locate a suspected short circuit in 1- phase of a 3-phase
motor? - CORRECT ANSWER-"megger"
, What will happen if moisture is inside a cadweld mold while the weld is being performed? -
CORRECT ANSWER-The cadweld mold could explode
What is produced in a conduit run by making 2 equal bends in opposite direction? - CORRECT
ANSWER-Offset
4 inch square boxes are available with all of the following depths EXCEPT - CORRECT ANSWER-1
inch
What is installed at an expansion joint to provide a continuous ground between 2 sections of cable
tray? - CORRECT ANSWER-A bonding jumper
What color identifies an insulated, grounded number 4 conductors? - CORRECT ANSWER-Green
Why is it important to torque bolts when busbars are connected? - CORRECT ANSWER-Decreases
resistance on the connection
All the following are protective devices for motors EXCEPT - CORRECT ANSWER-SOLENOID
Service conductors are sized based on what factor? - CORRECT ANSWER-The total calculated load
of the building
A holding contact na motor starter is normally connected in parallel with the - CORRECT ANSWER-
Start push button
The number of complete AC cycles per second is called the - CORRECT ANSWER-Frequency
Which of the following components is part of a dual element fuse - CORRECT ANSWER-Rejection
clip
The potential across the circuit is 480 volts and the current is 50 amps. What is the resistance of the
circuit? - CORRECT ANSWER-9.6 ohms
