MECHANICS EXAM NEIEP (2024/2025) QUESTIONS WITH VERIFIED CORRECT ANSWERS || 100%
GUARANTEED PASS <UPDATED VERSION>
NEIEP MECHANICS EXAM (2024/2025)
Instructions: Choose the best answer for each question. The correct answer is marked with a ✓.
Section 1: Safety Procedures
1. Before performing any maintenance on an elevator, what is the FIRST step a mechanic
must take?
a) Notify the building manager.
b) Place the elevator on inspection mode.
c) Lock out and tag out the mainline disconnect. ✓
d) Test the emergency stop button.
2. What is the primary purpose of a "Danger" tag on a lockout device?
a) To indicate the equipment is under repair.
b) To identify the mechanic working on the equipment. ✓
c) To warn that the equipment is low on power.
d) To show the date of the last inspection.
3. When working in a hoistway, what personal protective equipment (PPE) is absolutely
mandatory?
a) Steel-toed boots and a hard hat. ✓
b) Safety glasses and earplugs.
c) A reflective vest and gloves.
d) A respirator and fall arrest harness.
4. A firefighter's service key can only be operated in which position?
a) On
b) Off
c) Hold
d) Phase II ✓
5. The minimum safe distance from an unguarded energized electrical part over 50V is:
a) 3 feet
b) 5 feet
c) 10 feet
d) 12 feet ✓
Section 2: Electrical Theory & Components
,6. What is the unit of measurement for electrical resistance?
a) Volt
b) Ampere
c) Ohm ✓
d) Watt
7. A device used to protect a circuit from overcurrent is a:
a) Relay
b) Contactor
c) Fuse ✓
d) Resistor
8. In a DC motor, what component reverses the current flow in the armature to maintain
rotation?
a) Stator
b) Commutator ✓
c) Brush
d) Field winding
9. A capacitor in a single-phase AC motor circuit is primarily used to:
a) Limit current.
b) Provide a phase shift for starting. ✓
c) Step down voltage.
d) Reduce noise.
10. What does a "shunt" do in a DC motor circuit?
a) It is connected in series with the armature.
b) It is connected in parallel with the armature. ✓
c) It is used for dynamic braking.
d) It controls the field voltage.
11. The purpose of a varistor (MOV) in a control circuit is to:
a) Regulate voltage.
b) Suppress voltage spikes. ✓
c) Store electrical energy.
d) Measure resistance.
12. A "step-down" transformer:
a) Increases voltage from primary to secondary.
b) Decreases voltage from primary to secondary. ✓
, c) Provides electrical isolation only.
d) Converts AC to DC.
13. What is the function of a rectifier?
a) To change AC to DC. ✓
b) To change DC to AC.
c) To step up voltage.
d) To smooth out voltage fluctuations.
14. In a three-phase system, the phases are separated by how many degrees?
a) 90°
b) 120° ✓
c) 180°
d) 240°
15. A thermistor is a sensor whose resistance changes with:
a) Light
b) Magnetic fields
c) Pressure
d) Temperature ✓
Section 3: Motor Theory & Control
16. What type of motor is most commonly used for elevator hoisting machines?
a) Single-phase AC induction motor
b) DC series wound motor
c) Three-phase AC induction motor ✓
d) Universal motor
17. The stationary part of an AC induction motor is called the:
a) Rotor
b) Armature
c) Stator ✓
d) Commutator
18. What is the purpose of the "kick-the-drum" switch on a Ward-Leonard drive system?
a) To apply the brake
b) To reset the controller
c) To bring the MG set up to speed ✓
d) To initiate emergency stop
, 19. In a Variable Voltage, Variable Frequency (VVVF) drive, what is controlled to regulate
motor speed and torque?
a) Voltage only
b) Frequency only
c) Both voltage and frequency ✓
d) The field current
20. Dynamic braking in a DC motor is achieved by:
a) Applying a mechanical brake.
b) Disconnecting the armature from the power source and connecting it across a
resistor. ✓
c) Reversing the field polarity.
d) Shorting the commutator.
21. The "slip" of an AC induction motor is necessary to:
a) Generate torque. ✓
b) Reduce speed.
c) Increase efficiency.
d) Prevent overheating.
22. A "contactor" is best described as a:
a) High-power relay used to switch motor circuits. ✓
b) Low-voltage signal switch.
c) Device for overload protection.
d) Manual motor starter.
23. The device that senses motor current and opens the circuit during an overload is a(n):
a) Circuit breaker
b) Overload relay ✓
c) Fuse
d) Contactor
24. What is the main advantage of a permanent magnet synchronous motor (PMSM) in
modern elevators?
a) Lower cost
b) Higher efficiency and smaller size ✓
c) Simpler control circuitry
d) No maintenance required
GUARANTEED PASS <UPDATED VERSION>
NEIEP MECHANICS EXAM (2024/2025)
Instructions: Choose the best answer for each question. The correct answer is marked with a ✓.
Section 1: Safety Procedures
1. Before performing any maintenance on an elevator, what is the FIRST step a mechanic
must take?
a) Notify the building manager.
b) Place the elevator on inspection mode.
c) Lock out and tag out the mainline disconnect. ✓
d) Test the emergency stop button.
2. What is the primary purpose of a "Danger" tag on a lockout device?
a) To indicate the equipment is under repair.
b) To identify the mechanic working on the equipment. ✓
c) To warn that the equipment is low on power.
d) To show the date of the last inspection.
3. When working in a hoistway, what personal protective equipment (PPE) is absolutely
mandatory?
a) Steel-toed boots and a hard hat. ✓
b) Safety glasses and earplugs.
c) A reflective vest and gloves.
d) A respirator and fall arrest harness.
4. A firefighter's service key can only be operated in which position?
a) On
b) Off
c) Hold
d) Phase II ✓
5. The minimum safe distance from an unguarded energized electrical part over 50V is:
a) 3 feet
b) 5 feet
c) 10 feet
d) 12 feet ✓
Section 2: Electrical Theory & Components
,6. What is the unit of measurement for electrical resistance?
a) Volt
b) Ampere
c) Ohm ✓
d) Watt
7. A device used to protect a circuit from overcurrent is a:
a) Relay
b) Contactor
c) Fuse ✓
d) Resistor
8. In a DC motor, what component reverses the current flow in the armature to maintain
rotation?
a) Stator
b) Commutator ✓
c) Brush
d) Field winding
9. A capacitor in a single-phase AC motor circuit is primarily used to:
a) Limit current.
b) Provide a phase shift for starting. ✓
c) Step down voltage.
d) Reduce noise.
10. What does a "shunt" do in a DC motor circuit?
a) It is connected in series with the armature.
b) It is connected in parallel with the armature. ✓
c) It is used for dynamic braking.
d) It controls the field voltage.
11. The purpose of a varistor (MOV) in a control circuit is to:
a) Regulate voltage.
b) Suppress voltage spikes. ✓
c) Store electrical energy.
d) Measure resistance.
12. A "step-down" transformer:
a) Increases voltage from primary to secondary.
b) Decreases voltage from primary to secondary. ✓
, c) Provides electrical isolation only.
d) Converts AC to DC.
13. What is the function of a rectifier?
a) To change AC to DC. ✓
b) To change DC to AC.
c) To step up voltage.
d) To smooth out voltage fluctuations.
14. In a three-phase system, the phases are separated by how many degrees?
a) 90°
b) 120° ✓
c) 180°
d) 240°
15. A thermistor is a sensor whose resistance changes with:
a) Light
b) Magnetic fields
c) Pressure
d) Temperature ✓
Section 3: Motor Theory & Control
16. What type of motor is most commonly used for elevator hoisting machines?
a) Single-phase AC induction motor
b) DC series wound motor
c) Three-phase AC induction motor ✓
d) Universal motor
17. The stationary part of an AC induction motor is called the:
a) Rotor
b) Armature
c) Stator ✓
d) Commutator
18. What is the purpose of the "kick-the-drum" switch on a Ward-Leonard drive system?
a) To apply the brake
b) To reset the controller
c) To bring the MG set up to speed ✓
d) To initiate emergency stop
, 19. In a Variable Voltage, Variable Frequency (VVVF) drive, what is controlled to regulate
motor speed and torque?
a) Voltage only
b) Frequency only
c) Both voltage and frequency ✓
d) The field current
20. Dynamic braking in a DC motor is achieved by:
a) Applying a mechanical brake.
b) Disconnecting the armature from the power source and connecting it across a
resistor. ✓
c) Reversing the field polarity.
d) Shorting the commutator.
21. The "slip" of an AC induction motor is necessary to:
a) Generate torque. ✓
b) Reduce speed.
c) Increase efficiency.
d) Prevent overheating.
22. A "contactor" is best described as a:
a) High-power relay used to switch motor circuits. ✓
b) Low-voltage signal switch.
c) Device for overload protection.
d) Manual motor starter.
23. The device that senses motor current and opens the circuit during an overload is a(n):
a) Circuit breaker
b) Overload relay ✓
c) Fuse
d) Contactor
24. What is the main advantage of a permanent magnet synchronous motor (PMSM) in
modern elevators?
a) Lower cost
b) Higher efficiency and smaller size ✓
c) Simpler control circuitry
d) No maintenance required
