NM CID GS-9 Practice Questions - New Mexico CID GS-9 Elevators, Escalators And Conveyors Examination Exam

The primary safety function of a commercial hoistway-door interlock is to do which two things?

Ring the alarm bell and turn on the pit light Prevent the car from running unless the landing door is closed and locked, and prevent opening that landing door unless the car is at the landing (within the unlocking zone) Level the car and weigh the load Apply the car safety and trip the governor

Correct Answer:

Prevent the car from running unless the landing door is closed and locked, and prevent opening that landing door unless the car is at the landing (within the unlocking zone)

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