Elevator Mechanic Practice Exam

Image Description

Question: 1 / 400

What could cause the pump motor in a hydraulic elevator system to trip the circuit breaker?

A short circuit in the motor windings

The primary cause of a pump motor tripping the circuit breaker in a hydraulic elevator system is a short circuit in the motor windings. This means that there is an abnormal flow of electric current through the motor, causing it to overheat and trip the circuit breaker. This can be caused by old or damaged wiring, debris or moisture getting into the motor, or excessive wear and tear on the equipment. Options B, C, and D are incorrect because they do not directly affect the electric current flow within the motor and therefore would not cause it to trip the circuit breaker. A disconnected hoist cable would cause the elevator to not function properly, a faulty door sensor would affect the opening and closing of the elevator doors, and lack of lubrication could cause mechanical issues in the elevator system, but these would not cause the motor to overheat and trip the circuit breaker.

Get further explanation with Examzify DeepDiveBeta

Disconnected hoist cable

Faulty door sensor

Lack of lubrication

Next Question

Report this question

Download Elevator Mechanic Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy