15) Which device is used to test stator winding short and open fault?

Tong Tester

Internal Growler

External Growler

Digital multimeter

Answer is:

Internal Growler

Protect from heavy load

Protect against high voltage

Allow for continuous over loading

Protect against dead short circuit

Answer is:

Explanation:

Thermal cutout in addition to fuse in A.C motor circuit is used to allow for continuous overloading.

Universal motor

Permanent capacitor motor

3 Phase slip ring induction motor

3 Phase single squirrel cage induction motor

Answer is:

Slip increases torque decreases

Slip increases torque increases

Slip decreases torque increases

Slip decreases torque decreases

Answer is:

Vibration of shaft

Motor will not start

Runs in slow speed

Over heating of motor

Answer is: