CET CET Machine Room & Pit Equipment

Question 1

What is the minimum headroom clearance required above elevator machine room equipment per ASME A17.1?

Accepted Answer

7 feet

Answer

6 feet

Answer

8 feet

Answer

9 feet

Question 2

Which device in the elevator pit is used to slow and stop the car or counterweight in the event of an overspeed descent?

Accepted Answer

Car safety device

Answer

Oil buffer

Answer

Pit stop switch

Answer

Bottom limit switch

Question 3

What is the purpose of the pit stop switch on a traction elevator?

Accepted Answer

De-energizes the elevator for pit maintenance

Answer

Stops the car at the lowest landing

Answer

Activates the oil buffer

Answer

Resets the safety circuit after overspeed

Question 4

What is the minimum pit depth required for most standard traction elevators under ASME A17.1?

Accepted Answer

48 inches

Answer

12 inches

Answer

24 inches

Answer

60 inches

Question 5

What type of lighting is required in an elevator machine room?

Accepted Answer

Permanent artificial illumination of at least 19 foot-candles

Answer

Emergency lighting only

Answer

Natural lighting with a window

Answer

Portable task lighting only

Question 6

What is the function of the oil buffer in the elevator pit?

Accepted Answer

Absorbs kinetic energy to decelerate the car or counterweight

Answer

Lubricates the guide rails

Answer

Stores hydraulic fluid for the drive system

Answer

Provides a cushion for normal floor-level stops