— 100 QUESTIONS & VERIFIED
ANSWERS
1. What is the primary purpose of a governor in an elevator system?
A. To control door movement
B. To detect overspeed and activate safety gear
C. To regulate brake pressure
D. To reduce machine room noise
2. What component connects the governor rope to the safety mechanism?
A. Deflector sheave
B. Rope socket
C. Safety lever linkage
D. Car frame bracket
3. The main reason for counterweights in elevators is to:
A. Increase car capacity
B. Balance car weight and reduce motor demand
C. Prevent rope slipping
D. Support guide rails
4. Which device prevents uncontrolled upward movement (UCM)?
A. Governor
B. Door lock
C. Unintended Car Movement protection system
D. Selector
5. The crosshead is found on which elevator component?
,A. Door operator
B. Car frame
C. Brake assembly
D. Counterweight frame
6. The purpose of the plunger in a hydraulic elevator is to:
A. Move the counterweight
B. Raise and lower the car
C. Provide braking force
D. Reduce guide rail friction
7. What type of oil is generally used in hydraulic elevator systems?
A. Cooking oil
B. Motor oil
C. Biodegradable hydraulic oil
D. Brake fluid
8. The rope traction depends primarily on:
A. Rope length
B. Groove shape and sheave pressure
C. Car speed
D. Door load
9. The function of the buffer in an elevator system is to:
A. Slow the counterweight
B. Absorb impact during overtravel
C. Lock the car during inspection
D. Keep rails aligned
10. A wedge-type safety works by:
A. Crushing the guide rails
B. Forcing wedges into rails to stop the car
C. Releasing the governor
D. Locking the machine brake
11–100 BELOW
,(Continuing in the same format)
11. The mainline disconnect switch is used to:
C. Shut off all power to the elevator
12. Phase reversal protection ensures:
A. Correct motor rotation
13. Swaged fittings are used on:
D. Wire ropes
14. The car sling supports the:
B. Car platform
15. A roller guide reduces:
C. Lateral vibration
16. Traction elevators rely on:
A. Friction
17. Counterweight rollers guide the:
B. Counterweight frame
18. A sheave’s grooves must be:
D. Properly sized for rope diameter
19. Car safeties activate when:
C. Overspeed occurs
20. A hoistway ventilation opening is required for:
A. Heat dissipation
21. Selector tape provides:
D. Position feedback
22. Interlocks guarantee:
B. Doors cannot open unless car is at landing
23. Door restrictors prevent doors from opening:
C. Outside the landing zone
24. The machine brake stops the car by:
A. Applying spring force
, 25. Brake coils are energized to:
D. Release the brake
26. Rope stretch is caused by:
B. Load cycles
27. Compensation chains are used to:
A. Equalize rope tension
28. Guide rails are aligned using:
C. Rail brackets and fishplates
29. Governor rope tension is set with:
D. Tension sheave weights
30. Fire service Phase I is activated by:
B. Smoke detectors
31. Phase II operation is used by:
C. Firefighters inside the car
32. Car top inspection mode:
A. Disables normal automatic operation
33. Rope recoil groove issues cause:
D. Loss of traction
34. An encoder provides:
C. Speed and position data
35. The pit ladder must:
A. Meet safety code dimensions
36. Overspeed switches trip at:
D. 115–140% rated speed
37. Rope diameter wear requires:
C. Rope replacement
38. Counterweight runby is:
B. Distance counterweight travels beyond normal limit
39. Car leveling accuracy is:
A. ±1/4 inch