Electrical Engineering Questions and Answers
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1 :: In a star connected three phase transformer the

* a) Three phases are connected together at the start point
* b) Three phases are separate
* c) Neutral conductor is connected to a single phase
* d) Neutral conductor is electrically separated

Answer - a
Is This Answer Correct?    83 Yes 7 No
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2 :: A single-phase double-wound transformer consists of

* a) A single core mounted winding
* b) A winding that carries the difference between IP and IS
* c) A single solid core
* d) Two electrically separated coils

Answer - d
Is This Answer Correct?    42 Yes 8 No
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3 :: One method of insulating windings is to use

* a) Shelac
* b) High reluctance silicon steel
* c) Low frequency dust cores
* d) PVC

Answer - a
Is This Answer Correct?    23 Yes 4 No
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4 :: The usual method of insulating core laminations is

* a) Low reluctance silicon steel
* b) Surface oxidization
* c) High frequency air cores
* d) Cellulose paper

Answer - b
Is This Answer Correct?    15 Yes 5 No
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5 :: If a motor is required to start against a large starting current, it is usual to use

* a) Direct on line starter
* b) Face plate starter
* c) Step down centre tapped starter
* d) Rotor resistance starter

Answer - d
Is This Answer Correct?    19 Yes 5 No
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