MECHANICS NEIEP EXAM 2026-2027 NEWEST EXAM
QUESTIONS AND CORRECT DETAILED ANSWERS (100%
CORRECT VERIFIED ANSWERS) PLUS RATIONALES
ALREADY GRADED A+
1. When adjusting a hydraulic elevator’s leveling, which component directly controls the final stopping
accuracy?
A. Relief valve
B. Flow control valve
C. Solenoid-operated pilot valve
D. Hand valve
Rationale: The solenoid-operated pilot valve precisely meters oil flow at the landing, enabling smooth
and accurate leveling by directing fluid to the jack.
2. In a traction elevator, the primary purpose of the governor rope is to:
A. Drive the car door operator
B. Activate the overspeed safety device
C. Counterbalance the car weight
D. Lubricate the guide rails
Rationale: The governor rope is connected to the overspeed governor; if car speed exceeds the setpoint,
the governor grips the rope and triggers the safety device.
3. When testing a machine brake solenoid, an ohmmeter reading of infinite resistance indicates:
A. Normal coil resistance
B. An open winding in the solenoid coil
C. Short to ground
D. Low line voltage
Rationale: Infinite ohms means no electrical continuity; the coil’s internal wire has broken, so the
solenoid cannot produce a magnetic field.
,4. What is the purpose of a phase rotation relay on a motor-driven elevator?
A. Adjust car speed
B. Prevent motor operation with wrong phase sequence
C. Increase torque during startup
D. Bypass the overspeed switch
Rationale: Wrong phase sequence reverses motor direction; the relay disables the controller unless
phases are correct, protecting mechanical components.
5. On a geared traction machine, the “backlash” is measured between:
A. Motor shaft and brake drum
B. Governor sheave and rope
C. Worm gear and worm wheel
D. Guide shoe and rail
Rationale: Backlash is the play between worm and wheel teeth; excessive backlash causes rough
starts/stops and noise.
6. Which switch must be manually reset after an overspeed condition on a traction elevator?
A. Final limit switch
B. Overspeed governor switch
C. Pit stop switch
D. Door interlock switch
Rationale: The governor switch latch mechanically holds until manually reset, ensuring a mechanic
investigates the cause of overspeed.
7. In a hydraulic system, cavitation is most likely caused by:
A. High oil viscosity
B. Restricted suction strainer
C. Excessive relief valve setting
D. Overfilled reservoir
Rationale: A clogged suction strainer starves the pump inlet, causing low pressure that forms vapor
bubbles (cavitation), damaging pump internals.
8. What is the minimum allowable traction rope diameter reduction due to wear, per ASME A17.1?
A. 1/32 inch
B. 1/8 inch
C. 3/16 inch
D. 1/4 inch
, Rationale: Code requires rope replacement when diameter is reduced by 1/8 inch from nominal due to
external wear, as traction and strength are compromised.
9. The purpose of a car-mounted emergency brake (safety) is to:
A. Stop the car during normal operation
B. Stop and hold the car if overspeed occurs
C. Replace the machine brake
D. Level the car at floors
Rationale: Safeties are mechanical devices that engage the guide rails if the car overspeeds downward,
independent of the normal brake.
10. In a DC elevator motor, what does a “shunt field” provide?
A. Starting torque only
B. Constant speed regulation under varying load
C. High inrush current limiting
D. Dynamic braking resistance
Rationale: Shunt windings produce constant field flux; as load increases, armature current rises but
speed remains nearly constant due to back EMF.
11. When replacing hoistway door rollers, what measurement is most critical?
A. Roller durometer
B. Roller eccentricity relative to door path
C. Bearing grease type
D. Roller color code
Rationale: Eccentric rollers must be adjusted so the door tracks evenly; misalignment causes binding or
improper interlock engagement.
12. A mechanic measures voltage across a closed brake relay contact and reads 0 VAC. This indicates:
A. The relay coil is open
B. The contact has negligible resistance
C. The contact is welded open
D. The overload heater is tripped
Rationale: Zero volts across a closed contact means no significant voltage drop, confirming good
conductivity and minimal contact resistance.
13. On a 2:1 roped traction elevator, if the car moves 10 feet, the sheave rope travels:
A. 5 feet
QUESTIONS AND CORRECT DETAILED ANSWERS (100%
CORRECT VERIFIED ANSWERS) PLUS RATIONALES
ALREADY GRADED A+
1. When adjusting a hydraulic elevator’s leveling, which component directly controls the final stopping
accuracy?
A. Relief valve
B. Flow control valve
C. Solenoid-operated pilot valve
D. Hand valve
Rationale: The solenoid-operated pilot valve precisely meters oil flow at the landing, enabling smooth
and accurate leveling by directing fluid to the jack.
2. In a traction elevator, the primary purpose of the governor rope is to:
A. Drive the car door operator
B. Activate the overspeed safety device
C. Counterbalance the car weight
D. Lubricate the guide rails
Rationale: The governor rope is connected to the overspeed governor; if car speed exceeds the setpoint,
the governor grips the rope and triggers the safety device.
3. When testing a machine brake solenoid, an ohmmeter reading of infinite resistance indicates:
A. Normal coil resistance
B. An open winding in the solenoid coil
C. Short to ground
D. Low line voltage
Rationale: Infinite ohms means no electrical continuity; the coil’s internal wire has broken, so the
solenoid cannot produce a magnetic field.
,4. What is the purpose of a phase rotation relay on a motor-driven elevator?
A. Adjust car speed
B. Prevent motor operation with wrong phase sequence
C. Increase torque during startup
D. Bypass the overspeed switch
Rationale: Wrong phase sequence reverses motor direction; the relay disables the controller unless
phases are correct, protecting mechanical components.
5. On a geared traction machine, the “backlash” is measured between:
A. Motor shaft and brake drum
B. Governor sheave and rope
C. Worm gear and worm wheel
D. Guide shoe and rail
Rationale: Backlash is the play between worm and wheel teeth; excessive backlash causes rough
starts/stops and noise.
6. Which switch must be manually reset after an overspeed condition on a traction elevator?
A. Final limit switch
B. Overspeed governor switch
C. Pit stop switch
D. Door interlock switch
Rationale: The governor switch latch mechanically holds until manually reset, ensuring a mechanic
investigates the cause of overspeed.
7. In a hydraulic system, cavitation is most likely caused by:
A. High oil viscosity
B. Restricted suction strainer
C. Excessive relief valve setting
D. Overfilled reservoir
Rationale: A clogged suction strainer starves the pump inlet, causing low pressure that forms vapor
bubbles (cavitation), damaging pump internals.
8. What is the minimum allowable traction rope diameter reduction due to wear, per ASME A17.1?
A. 1/32 inch
B. 1/8 inch
C. 3/16 inch
D. 1/4 inch
, Rationale: Code requires rope replacement when diameter is reduced by 1/8 inch from nominal due to
external wear, as traction and strength are compromised.
9. The purpose of a car-mounted emergency brake (safety) is to:
A. Stop the car during normal operation
B. Stop and hold the car if overspeed occurs
C. Replace the machine brake
D. Level the car at floors
Rationale: Safeties are mechanical devices that engage the guide rails if the car overspeeds downward,
independent of the normal brake.
10. In a DC elevator motor, what does a “shunt field” provide?
A. Starting torque only
B. Constant speed regulation under varying load
C. High inrush current limiting
D. Dynamic braking resistance
Rationale: Shunt windings produce constant field flux; as load increases, armature current rises but
speed remains nearly constant due to back EMF.
11. When replacing hoistway door rollers, what measurement is most critical?
A. Roller durometer
B. Roller eccentricity relative to door path
C. Bearing grease type
D. Roller color code
Rationale: Eccentric rollers must be adjusted so the door tracks evenly; misalignment causes binding or
improper interlock engagement.
12. A mechanic measures voltage across a closed brake relay contact and reads 0 VAC. This indicates:
A. The relay coil is open
B. The contact has negligible resistance
C. The contact is welded open
D. The overload heater is tripped
Rationale: Zero volts across a closed contact means no significant voltage drop, confirming good
conductivity and minimal contact resistance.
13. On a 2:1 roped traction elevator, if the car moves 10 feet, the sheave rope travels:
A. 5 feet
