Questions & Answers (2023 Style)
Correct answer marked with ✔️✔️
1. Which code primarily governs elevator installation and safety requirements in North
America?
A. ANSI Z117
B. ASME A17.1
C. NEC Article 430
D. OSHA 1910
2. What is the main purpose of the governor in a traction elevator?
A. To regulate car lighting
B. To control door closing force
C. To activate safety gear in overspeed conditions
D. To operate the machine brake
3. What device prevents passengers from being trapped between the car and hoistway door?
A. Car gate switch
B. Door restrictor
C. Door zone switch
D. Limit switch
4. On a hydraulic elevator, the rupture valve is designed to activate when:
A. Car speed exceeds 125% of rated speed
B. Oil temperature is too high
,C. Power is lost
D. Pump pressure is low
5. NEC wiring for elevator control circuits is typically classified as:
A. Class 1
B. Class 2
C. Class 1 or Class 2 depending on voltage
D. Special purpose only
6. What type of motor is commonly used in modern geared traction elevators?
A. DC shunt motor
B. Gearless AC motor
C. AC induction motor
D. Stepper motor
7. The hoistway emergency stop switch must be located:
A. In the machine room only
B. On top of the car only
C. In the pit and overhead
D. Next to the controller
8. The plunger in a hydraulic elevator is typically made of:
A. Aluminum
B. Steel
C. PVC
D. Carbon fiber
9. Traction elevator counterweights are used to:
A. Reduce starting current
B. Increase brake torque
,C. Slow down car travel
D. Replace the governor
10. What does the “buffer” in an elevator system do?
A. Controls door closing speed
B. Absorbs car impact at bottom of hoistway
C. Limits car overspeed
D. Protects against electrical faults
11. What is the typical voltage for elevator car lighting circuits?
A. 460V
B. 24V
C. 120V
D. 600V
12. The safety plank is located on the:
A. Counterweight frame
B. Door operator
C. Car frame
D. Machine base
13. Which device verifies that the doors are fully closed before the car moves?
A. Door reopen sensor
B. Door lock contact
C. Nudging relay
D. Selector switch
14. What is the term for the metal guides that keep the elevator car aligned?
A. Shoes
B. Columns
, C. Rails
D. Beams
15. What component provides mechanical braking to hold a traction car at a floor?
A. Safety gear
B. Governor rope
C. Machine brake
D. Counterweight
16. Hydraulic elevator drift usually occurs because of:
A. Worn packing
B. Faulty selector
C. Incorrect leveling switch
D. Damaged hall station
17. Which type of door operator is most common on modern elevators?
A. Vacuum driven
B. Pneumatic
C. DC geared motor
D. AC variable-frequency motor
18. On a traction elevator, which rope is used to activate the governor?
A. Hoist rope
B. Compensation rope
C. Governor rope
D. Traveling cable
19. What purpose do compensation chains serve?
A. Improve safety gear engagement
B. Balance rope weight on high-rise elevators