CET Elevator Installation & Components 2

Question 1

What is the purpose of the elevator pit in a hoistway installation?

Accepted Answer

To provide clearance below the lowest landing for the car and buffer

Answer

The pit provides the required clearance below the lowest landing to accommodate the car frame, buffers, and related equipment at the bottom of travel.

Question 2

Which component in a traction elevator system prevents the car from exceeding its rated speed?

Accepted Answer

Governor

Answer

The governor monitors car speed and triggers the safety device if the car exceeds the overspeed threshold defined by ASME A17.1.

Question 3

When installing guide rails, what is the correct method for joining two rail sections together?

Accepted Answer

Using fish plates bolted to both rail sections

Answer

Fish plates (splice plates) are bolted to the web of each adjoining rail section to create a secure, aligned joint.

Question 4

What is the minimum overhead clearance required above the car top in a typical traction elevator hoistway per ASME A17.1?

Accepted Answer

The clearance is defined by the specific installation design and code section

Answer

ASME A17.1 specifies overhead clearances based on car speed, equipment height, and runby, so no single fixed value applies universally to all installations.

Question 5

What function does the counterweight serve in a traction elevator?

Accepted Answer

Balances the car weight to reduce motor load

Answer

The counterweight offsets the weight of the car plus approximately 40–50% of rated load, reducing the motor torque required to move the elevator.

(CET) Certified Elevator Technician Practice Test

(CET) Certified Elevator Technician Practice Test

CET Elevator Installation & Components 2