The characteristics of drive for crane hoisting and lowering are which of the following ?

Related Mcqs:

The load cycle for a motor driving a power press will be________________?

A. variable load B. continuous C. continuous but periodical D. intermittent and variable load...

The starting torque in case of centrifugal pumps is generally_________________?

A. less than running torque B. same as running torque C. slightly more than running torque D. double the running torque...

Heat control switches are used in__________________?

A. transformers B. cooling ranges C. three phase induction motors D. single phase...

In jaw crushers a motor has to often start against ____________________ load?

A. heavy B. medium C. normal D. low...

For crane travel which of the following motors is normally used ?

A. Synchronous motor B. D.C. differentially compound motor C. Ward-Leonard controlled D.C. shunt motor D. AC. slip ring motor...