NEIEP 400 – Comprehensive Review
2026/2027 NEIEP 400 – Comprehensive
Review 2026/2027 Practice Exam 2026/2027
— Comprehensive Review | Exam-Style
MCQs with Correct Answers & Detailed
Rationales | Final Exam Prep
1. Which component is primarily responsible for preventing
the elevator from exceeding its normal terminal stopping
zone by removing power from the driving machine
control circuit?
A. Door restrictor
B. Governor
C. Final limit switch
D. Door operator
C. Final limit switch
The final limit is intended as a last-resort stopping device
when the car travels beyond its normal limit of operation. A
governor primarily initiates overspeed safety action, while the
door restrictor and door operator are associated with door
operation and interlocking.
2. In a traction elevator, what is the primary purpose of the
counterweight?
A. To increase motor speed
B. To balance the weight of the car and a portion of its rated
load
,C. To prevent the doors from opening
D. To operate the governor
B. To balance the weight of the car and a portion of its
rated load
The counterweight reduces the amount of motor torque
required by balancing the car and a specified portion of the
rated load. It does not directly control the doors or governor,
and increasing motor speed is not its primary function.
3. A technician is troubleshooting an elevator that runs
normally in one direction but trips the drive when
commanded in the opposite direction. What should be
checked first?
A. Cab lighting
B. Directional control circuitry and drive fault history
C. Door sill finish
D. Car-top inspection light
B. Directional control circuitry and drive fault history
An abnormality that occurs specifically with one direction
points toward directional control, feedback, braking, or drive-
related circuitry. Cab lighting, sill condition, and inspection
lighting would not normally cause a direction-specific drive
trip.
4. What is the principal function of an elevator door
interlock?
A. To regulate door-opening speed
B. To prevent the car from running unless the landing door is
,mechanically locked and electrically proven closed
C. To prevent the motor from overheating
D. To increase door-panel strength
B. To prevent the car from running unless the landing
door is mechanically locked and electrically proven closed
The interlock provides both a mechanical locking function and
an electrical safety circuit function. A door operator controls
movement, but it does not by itself provide the required
landing-door locking and running protection.
5. A normally closed safety contact opens during an
elevator safety-circuit fault. What is the expected result?
A. The controller bypasses the contact automatically
B. The elevator continues at inspection speed
C. The safety circuit interrupts the permitted operating
sequence
D. The door operator accelerates
C. The safety circuit interrupts the permitted operating
sequence
Safety circuits are generally arranged so that an open contact
removes the permissive needed for operation. This fail-safe
principle helps prevent continued movement when a
monitored safety condition is lost.
6. Which condition is most likely to cause excessive
traction-rope wear?
A. Correct groove profile and proper rope tension
B. Improper sheave groove condition combined with uneven
, rope tension
C. Clean machine-room ventilation filters
D. Correctly adjusted door rollers
B. Improper sheave groove condition combined with
uneven rope tension
Improper groove geometry and unequal rope loading can
increase localized wear, bending stress, and slipping. Door
rollers and ventilation filters do not directly determine
traction-rope wear.
7. What is the primary purpose of a governor on a traction
elevator?
A. To control normal door speed
B. To detect excessive car speed and initiate the safety system
when applicable
C. To control counterweight clearance
D. To supply motor power
B. To detect excessive car speed and initiate the safety
system when applicable
The governor monitors car speed through its mechanical
relationship to car movement and can actuate the elevator's
safety mechanism when an overspeed condition occurs. It
does not function as the normal motor controller or door-
speed regulator.
8. An elevator car stops slightly above the landing on
repeated trips, even though the stopping error is
2026/2027 NEIEP 400 – Comprehensive
Review 2026/2027 Practice Exam 2026/2027
— Comprehensive Review | Exam-Style
MCQs with Correct Answers & Detailed
Rationales | Final Exam Prep
1. Which component is primarily responsible for preventing
the elevator from exceeding its normal terminal stopping
zone by removing power from the driving machine
control circuit?
A. Door restrictor
B. Governor
C. Final limit switch
D. Door operator
C. Final limit switch
The final limit is intended as a last-resort stopping device
when the car travels beyond its normal limit of operation. A
governor primarily initiates overspeed safety action, while the
door restrictor and door operator are associated with door
operation and interlocking.
2. In a traction elevator, what is the primary purpose of the
counterweight?
A. To increase motor speed
B. To balance the weight of the car and a portion of its rated
load
,C. To prevent the doors from opening
D. To operate the governor
B. To balance the weight of the car and a portion of its
rated load
The counterweight reduces the amount of motor torque
required by balancing the car and a specified portion of the
rated load. It does not directly control the doors or governor,
and increasing motor speed is not its primary function.
3. A technician is troubleshooting an elevator that runs
normally in one direction but trips the drive when
commanded in the opposite direction. What should be
checked first?
A. Cab lighting
B. Directional control circuitry and drive fault history
C. Door sill finish
D. Car-top inspection light
B. Directional control circuitry and drive fault history
An abnormality that occurs specifically with one direction
points toward directional control, feedback, braking, or drive-
related circuitry. Cab lighting, sill condition, and inspection
lighting would not normally cause a direction-specific drive
trip.
4. What is the principal function of an elevator door
interlock?
A. To regulate door-opening speed
B. To prevent the car from running unless the landing door is
,mechanically locked and electrically proven closed
C. To prevent the motor from overheating
D. To increase door-panel strength
B. To prevent the car from running unless the landing
door is mechanically locked and electrically proven closed
The interlock provides both a mechanical locking function and
an electrical safety circuit function. A door operator controls
movement, but it does not by itself provide the required
landing-door locking and running protection.
5. A normally closed safety contact opens during an
elevator safety-circuit fault. What is the expected result?
A. The controller bypasses the contact automatically
B. The elevator continues at inspection speed
C. The safety circuit interrupts the permitted operating
sequence
D. The door operator accelerates
C. The safety circuit interrupts the permitted operating
sequence
Safety circuits are generally arranged so that an open contact
removes the permissive needed for operation. This fail-safe
principle helps prevent continued movement when a
monitored safety condition is lost.
6. Which condition is most likely to cause excessive
traction-rope wear?
A. Correct groove profile and proper rope tension
B. Improper sheave groove condition combined with uneven
, rope tension
C. Clean machine-room ventilation filters
D. Correctly adjusted door rollers
B. Improper sheave groove condition combined with
uneven rope tension
Improper groove geometry and unequal rope loading can
increase localized wear, bending stress, and slipping. Door
rollers and ventilation filters do not directly determine
traction-rope wear.
7. What is the primary purpose of a governor on a traction
elevator?
A. To control normal door speed
B. To detect excessive car speed and initiate the safety system
when applicable
C. To control counterweight clearance
D. To supply motor power
B. To detect excessive car speed and initiate the safety
system when applicable
The governor monitors car speed through its mechanical
relationship to car movement and can actuate the elevator's
safety mechanism when an overspeed condition occurs. It
does not function as the normal motor controller or door-
speed regulator.
8. An elevator car stops slightly above the landing on
repeated trips, even though the stopping error is
