NEIEP 400 Elevator Final Exam-Version 2 Exam-Elevator
Components,Electrical Sytems,Controllers,Safety Devices And
Troubleshooting | All Practice Questions And Answers
2026/2027 | A+ Graded | Comprehensive Exam Guide
2026&2027
1. Which component is primarily responsible for converting electrical energy into the
mechanical motion used to drive a traction elevator?
A. Governor
B. Hoist machine motor
C. Door restrictor
D. Car operating panel
The hoist machine motor converts electrical energy into rotational mechanical energy that
drives the elevator machinery.
2. During inspection of a traction elevator, the mechanic observes that the car moves in the
opposite direction from the commanded direction. Which condition should be investigated
first?
A. Door vane alignment
B. Car-top lighting
C. Motor phase or control wiring
D. Emergency bell circuit
Incorrect motor phase relationships or control wiring can cause the machine to rotate
opposite to the commanded direction and should be investigated before mechanical
adjustments are made.
3. What is the primary function of an elevator governor?
A. Detect excessive car speed and initiate the safety system
B. Control cab lighting
C. Regulate door-open time
D. Supply power to the controller
The governor monitors car speed and, when an overspeed condition occurs, initiates the
sequence that applies the car safety system.
4. A mechanic is troubleshooting an elevator that intermittently fails to run. The controller
indicates an open safety circuit. What is the most appropriate first action?
A. Replace the motor
B. Increase the controller voltage
C. Adjust the counterweight
D. Trace the safety circuit systematically for an open device or connection
,A systematic inspection of the safety circuit identifies whether a particular interlock, switch,
terminal, or connection is interrupting the run circuit.
5. Which device prevents an elevator door from being opened when the car is not within
the required landing zone?
A. Door clutch
B. Hoist brake
C. Door interlock
D. Governor switch
The door interlock provides the required electrical and mechanical control that prevents
unsafe opening of landing doors when the car is not properly positioned.
6. What is the main purpose of a counterweight on a conventional traction elevator?
A. Reduce the load the motor must move
B. Increase door-closing force
C. Operate the governor
D. Control emergency lighting
The counterweight balances a substantial portion of the car and rated load, reducing the
power and torque required from the hoist machine.
7. A controller repeatedly reports an overcurrent condition when the car accelerates
upward. Which condition could reasonably contribute to this fault?
A. Excessive cab lighting
B. Mechanical drag or abnormal motor load
C. Incorrect hall lantern lens
D. Low door sill height
Mechanical resistance or an excessive load can require the motor to draw excessive current
during acceleration.
8. Which elevator component provides the mechanical stopping force needed to hold the
car stationary when the motor is not driving?
A. Encoder
B. Selector
C. Door clutch
D. Machine brake
The machine brake applies holding force to prevent unintended movement when the drive is
not actively controlling the motor.
9. A mechanic measures voltage at the input of a controller but finds no corresponding
output to the motor drive. Which area should be examined next?
A. Controller power and control circuitry
,B. Door sill finish
C. Car-top guardrail paint
D. Hoistway lighting cover
If correct input power is present but the expected output is absent, the controller's power and
control circuits should be examined systematically.
10. Why are elevator safety circuits normally designed so that loss of required electrical
continuity prevents normal operation?
A. To increase ride speed
B. To reduce lighting consumption
C. To place the elevator in a safer non-running condition when a safety device opens
D. To improve door appearance
Safety circuits are designed so that an open condition interrupts normal operation rather than
allowing the elevator to continue running with a potentially unsafe condition.
11. What is the principal purpose of an elevator car operating panel?
A. Detect governor overspeed
B. Provide passengers with controls for selecting destinations and operating certain car
functions
C. Adjust motor phase sequence
D. Tension suspension ropes
The car operating panel provides passenger controls such as floor selection, door operation,
alarm, and related functions.
12. A mechanic finds excessive wear on a suspension rope. What should be done before
returning the elevator to service?
A. Lubricate the rope and ignore the wear
B. Increase motor speed
C. Verify compliance with applicable inspection and replacement requirements
D. Disable the governor
Suspension-rope deterioration is a safety-critical condition and must be evaluated against
applicable requirements before the elevator is returned to service.
13. Which component commonly provides feedback about motor or sheave position to a
modern elevator controller?
A. Encoder
B. Door restrictor
C. Buffer
D. Guide shoe
, An encoder provides position or speed feedback that allows the controller to regulate motor
operation accurately.
14. An elevator stops abruptly during leveling, but the controller shows no major drive
fault. Which area should receive particular attention?
A. Cab flooring
B. Hall lantern
C. Machine-room ventilation
D. Position feedback and leveling circuitry
Position feedback or leveling circuitry can cause abrupt or inaccurate stopping when the
controller receives incorrect information about car position.
15. What is the principal function of a door interlock contact in an elevator safety circuit?
A. Increase motor torque
B. Confirm that the landing door is secured before permitting operation
C. Control car lighting
D. Detect rope tension
The interlock contact confirms the required door-secured condition as part of the elevator's
safety circuit.
16. Before working on energized elevator equipment, what is the most important
consideration?
A. Perform the task as quickly as possible
B. Remove only the controller cover
C. Follow applicable electrical safety and lockout/tagout procedures
D. Ask a passenger to observe the work
Proper energy isolation and electrical safety procedures protect workers from unexpected
energization and hazardous electrical energy.
17. What is the primary purpose of an elevator buffer?
A. Provide a stopping means at the extreme lower travel area
B. Control door speed
C. Balance the car
D. Detect phase loss
Buffers provide a means of absorbing energy if the car or counterweight travels into the lower
terminal area beyond normal stopping limits.
18. A mechanic discovers that a normally closed safety contact remains electrically open
even though the associated device appears mechanically reset. What should be checked
next?
A. Car decoration
Components,Electrical Sytems,Controllers,Safety Devices And
Troubleshooting | All Practice Questions And Answers
2026/2027 | A+ Graded | Comprehensive Exam Guide
2026&2027
1. Which component is primarily responsible for converting electrical energy into the
mechanical motion used to drive a traction elevator?
A. Governor
B. Hoist machine motor
C. Door restrictor
D. Car operating panel
The hoist machine motor converts electrical energy into rotational mechanical energy that
drives the elevator machinery.
2. During inspection of a traction elevator, the mechanic observes that the car moves in the
opposite direction from the commanded direction. Which condition should be investigated
first?
A. Door vane alignment
B. Car-top lighting
C. Motor phase or control wiring
D. Emergency bell circuit
Incorrect motor phase relationships or control wiring can cause the machine to rotate
opposite to the commanded direction and should be investigated before mechanical
adjustments are made.
3. What is the primary function of an elevator governor?
A. Detect excessive car speed and initiate the safety system
B. Control cab lighting
C. Regulate door-open time
D. Supply power to the controller
The governor monitors car speed and, when an overspeed condition occurs, initiates the
sequence that applies the car safety system.
4. A mechanic is troubleshooting an elevator that intermittently fails to run. The controller
indicates an open safety circuit. What is the most appropriate first action?
A. Replace the motor
B. Increase the controller voltage
C. Adjust the counterweight
D. Trace the safety circuit systematically for an open device or connection
,A systematic inspection of the safety circuit identifies whether a particular interlock, switch,
terminal, or connection is interrupting the run circuit.
5. Which device prevents an elevator door from being opened when the car is not within
the required landing zone?
A. Door clutch
B. Hoist brake
C. Door interlock
D. Governor switch
The door interlock provides the required electrical and mechanical control that prevents
unsafe opening of landing doors when the car is not properly positioned.
6. What is the main purpose of a counterweight on a conventional traction elevator?
A. Reduce the load the motor must move
B. Increase door-closing force
C. Operate the governor
D. Control emergency lighting
The counterweight balances a substantial portion of the car and rated load, reducing the
power and torque required from the hoist machine.
7. A controller repeatedly reports an overcurrent condition when the car accelerates
upward. Which condition could reasonably contribute to this fault?
A. Excessive cab lighting
B. Mechanical drag or abnormal motor load
C. Incorrect hall lantern lens
D. Low door sill height
Mechanical resistance or an excessive load can require the motor to draw excessive current
during acceleration.
8. Which elevator component provides the mechanical stopping force needed to hold the
car stationary when the motor is not driving?
A. Encoder
B. Selector
C. Door clutch
D. Machine brake
The machine brake applies holding force to prevent unintended movement when the drive is
not actively controlling the motor.
9. A mechanic measures voltage at the input of a controller but finds no corresponding
output to the motor drive. Which area should be examined next?
A. Controller power and control circuitry
,B. Door sill finish
C. Car-top guardrail paint
D. Hoistway lighting cover
If correct input power is present but the expected output is absent, the controller's power and
control circuits should be examined systematically.
10. Why are elevator safety circuits normally designed so that loss of required electrical
continuity prevents normal operation?
A. To increase ride speed
B. To reduce lighting consumption
C. To place the elevator in a safer non-running condition when a safety device opens
D. To improve door appearance
Safety circuits are designed so that an open condition interrupts normal operation rather than
allowing the elevator to continue running with a potentially unsafe condition.
11. What is the principal purpose of an elevator car operating panel?
A. Detect governor overspeed
B. Provide passengers with controls for selecting destinations and operating certain car
functions
C. Adjust motor phase sequence
D. Tension suspension ropes
The car operating panel provides passenger controls such as floor selection, door operation,
alarm, and related functions.
12. A mechanic finds excessive wear on a suspension rope. What should be done before
returning the elevator to service?
A. Lubricate the rope and ignore the wear
B. Increase motor speed
C. Verify compliance with applicable inspection and replacement requirements
D. Disable the governor
Suspension-rope deterioration is a safety-critical condition and must be evaluated against
applicable requirements before the elevator is returned to service.
13. Which component commonly provides feedback about motor or sheave position to a
modern elevator controller?
A. Encoder
B. Door restrictor
C. Buffer
D. Guide shoe
, An encoder provides position or speed feedback that allows the controller to regulate motor
operation accurately.
14. An elevator stops abruptly during leveling, but the controller shows no major drive
fault. Which area should receive particular attention?
A. Cab flooring
B. Hall lantern
C. Machine-room ventilation
D. Position feedback and leveling circuitry
Position feedback or leveling circuitry can cause abrupt or inaccurate stopping when the
controller receives incorrect information about car position.
15. What is the principal function of a door interlock contact in an elevator safety circuit?
A. Increase motor torque
B. Confirm that the landing door is secured before permitting operation
C. Control car lighting
D. Detect rope tension
The interlock contact confirms the required door-secured condition as part of the elevator's
safety circuit.
16. Before working on energized elevator equipment, what is the most important
consideration?
A. Perform the task as quickly as possible
B. Remove only the controller cover
C. Follow applicable electrical safety and lockout/tagout procedures
D. Ask a passenger to observe the work
Proper energy isolation and electrical safety procedures protect workers from unexpected
energization and hazardous electrical energy.
17. What is the primary purpose of an elevator buffer?
A. Provide a stopping means at the extreme lower travel area
B. Control door speed
C. Balance the car
D. Detect phase loss
Buffers provide a means of absorbing energy if the car or counterweight travels into the lower
terminal area beyond normal stopping limits.
18. A mechanic discovers that a normally closed safety contact remains electrically open
even though the associated device appears mechanically reset. What should be checked
next?
A. Car decoration
