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AE & JE EE Quiz Electrical Machines Complete Revision

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Question 1

Due to low supply voltage for a 40 HP, 3–phase induction motor. Which of the following equipment can be used to boost the voltage?

Question 2

Which of the following quantity maintains the same direction whether a D.C Machine runs as a generator or as a motor?

Question 3

The squirrel-cage winding of a single-phase motor is placed in the_________.

Question 4

A transformer takes no-load current of and absorbs 187 W. If the resistance of the primary is what is the magnetising current?

Question 5

The reactive power generated by a synchronous alternator can be controlled by?

Question 6

Which of the following motors is used in mixies?

Question 7

The purpose of starting winding in a single-phase induction motor is to?

Question 8

In a transformer zero voltage regulation is achieved at a load power factor which is

Question 9

Blocked rotor test is used to find which of the following losses?

Question 10

The overall power factor of an On-load transformer_____,.
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May 22AE & JE Exams