CET Elevator Installation & Components

Question 1

Which component guides the elevator car along the shaft?

Accepted Answer

Guide rails

Answer

Guide rails are installed vertically in the hoistway and ensure the car moves smoothly along a defined path.

Question 2

What is the function of the elevator buffer?

Accepted Answer

Absorb energy at the shaft base

Answer

Buffers are installed at the bottom of the hoistway to absorb impact and stop the car safely if it travels too far downward.

Question 3

Which system uses a piston and fluid to raise and lower the elevator?

Accepted Answer

Hydraulic system

Answer

Hydraulic systems use fluid pressure to operate a piston that lifts or lowers the elevator car.

Question 4

What is the purpose of a machine room in elevator installation?

Accepted Answer

Houses elevator drive and control systems

Answer

The machine room houses the drive motor, controller, and other critical components necessary for elevator operation.

Question 5

Which cable connects the elevator car and counterweight in a traction system?

Accepted Answer

Hoist rope

Answer

Hoist ropes connect the car to the counterweight and wrap around a drive sheave to enable vertical movement.

(CET) Certified Elevator Technician Practice Test