In a meggar controlling torque is provided by

The electrical power to a meggar is provided by

A

battery

B

permanent magnet D.C. generator

C

A.generator

D

any of the above

The running winding of a single phase motor on testing with Meggar is found to be ground. Most probable location of the ground will be

A

At the end connections

B

At the end terminals

C

Anywhere on the winding inside a slot

D

At the slot edge where coil enters or comes out of the slot

The operating voltage of a meggar is about

A

6 V

B

12 V

C

40 V

D

100 V

In a portable instrument, the controlling torque is provided by

A

spring

B

gravity

C

eddy currents

D

all of the above

The ratio of starting torque to full-load torque is least in case of

A

Series motors

B

Shunt motors

C

Compound motors

D

None of the above

The maximum torque multiplication ratio in a torque converter is about

A

2.5

B

10

C

25

D

40

The torque converter uses ________ to transfer torque.

A

Air

B

Automatic transmission fluid (ATF)

C

Gears

D

Steel belt

Which of the following load normally needs starting torque more than the rated torque?

A

Blowers

B

Conveyors

C

Air compressors

D

Centrifugal pumps

The ratio of starting torque to running torque in a synchronous motor is

A

zero

B

one

C

two

D

infinity

________ has the least value of starting torque to full load torque ratio.

A

D.C. shunt motor

B

D.C. series motor

C

Squirrel cage induction motor

D

Slip ring induction motor

In a meggar controlling torque is provided by

Related Questions