← All CET Flashcard Decks

Elevator Installation & Components Flashcards

7 cards from real CET practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Elevator Installation & Components flashcards as text
  1. What is the purpose of the elevator pit in a hoistway installation?

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

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

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

    Answer: Governor

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

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

    Answer: Using fish plates bolted to both rail sections

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

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

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

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

  5. What function does the counterweight serve in a traction elevator?

    Answer: Balances the car weight to reduce motor load

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

  6. What material are elevator guide rails most commonly made from?

    Answer: Cold-drawn steel T-section

    Guide rails are manufactured from cold-drawn steel in a T-section profile to provide the precise surface finish and strength needed for guide shoes and safeties.

  7. During rope installation on a traction elevator, why must ropes be uncoiled rather than pulled off the reel over the end?

    Answer: To avoid introducing twist and kinks into the rope

    Pulling rope off the end of a reel induces twist that permanently damages the wire rope lay and reduces its load capacity.