સાચો જવાબC. ઓવરસ્પીડિંગના કિસ્સામાં સલામતી બ્રેકને સક્રિય કરવા
ઝડપી સમજણ
The lift governor is an overspeed-sensing safety device. If car speed exceeds its permitted value, the governor trips the safety mechanism so the car's safety gear/brake can grip the guide rails and stop the lift.
વિગતવાર સમજણ
Concept & Reasoning
A traction lift has several separate control and safety subsystems. The drive controller regulates normal motion, door operators manage doors, and indicators show floor status. The governor is specifically part of the overspeed protection chain: it detects excessive speed mechanically/electrically and initiates safety-gear action independent of normal control.
How to Solve It in the Exam
Governor = speed safety, not normal speed command.
Important Exam PointIn lift questions, separate normal controller functions from fail-safe mechanical protection.
Related Revision Path
This question sits in the revision path Building Electrical Services → Vertical Transportation → Elevators .