SYNCHRONOUS MOTOR AND MG SET - Practice Mode

1) Calculate the voltage regulation in percentage if the load is removed from an alternator, the voltage rises from 480V to 660V?

0.272 0.325 0.375 0.385

Correct Answer: 0.375

Explanation:

.

2) Why D.C supply is necessary for synchronous motor operation?

Reduce the losses Start the motor initially Run the motor with over load Run the motor at synchronous speed

Correct Answer: Run the motor at synchronous speed

3) Which acts as both inverter and converter?

Metal rectifier Mercury arc rectifier Semi conductor diode Synchronous converter

Correct Answer: Synchronous converter

4) What is the function of inverter?

Convert A.C to D.C Convert D.C to A.C Smoothening A.C sine wave Convert pulsating DC into pure D.C

Correct Answer: Convert D.C to A.C

5) Which converting device can be over loaded?

Rectifier unit Rotary converter Motor generator set Mercury arc rectifier

Correct Answer: Rectifier unit

Previous Question Set Back to Question Sets Next Question Set

Try Another Topic

Try Another Quiz