If two series motors are identically coupled. One is running as motor while other as generator. For this combination, the iron losses and frictional losses are found identical for ____________

If two series motors are identically coupled. One is running as motor while other as generator. For this combination, the iron losses and frictional losses are found identical for _________

A

identical speed and excitation

B

identical speed

C

identical rating and construction

D

none of the mentioned

There are two classes of three figures each. Class 'A' figures differ in certain way from figures in Class 'B'. Which two of the four Answer Figures belong to Class 'A'?
Grouping of Identical Figures mcq question image

Grouping of Identical Figures mcq question image

A

1 and 3

B

1 and 2

C

2 and 4

D

2 and 3

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have more no load current?

A

B

C

Both A and B

D

Neither A nor B

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have poorer power factor?

A

B

C

Both A and B

D

Neither A nor B

Two three phase induction motors A and B are identical in all respects except that motor A has a larger air-gap than motor B. Which motor will have better full-load power factor?

A

B

C

Both A and B

D

Neither A nor B

Group the given figures into three classes using each figure only once.
Grouping of Identical Figures mcq question image

A

1,3,9; 2,5,6; 4,7,8

B

1,3,9; 2,7,8; 4,5,6

C

1,2,4; 3,5,7; 6,8,9

D

1,3,6; 2,4,8; 5,7,9

Group the given figures into three classes using each figure only once.
Grouping of Identical Figures mcq question image

A

1,2,6; 3,4,7; 5

B

1,3; 2,6; 4,5,7

C

1,2,6,7; 3; 4,5

D

1,3; 2,4,5; 6,7

Group the given figures into three classes using each figure only once.
Grouping of Identical Figures mcq question image

A

2,4,7; 1,8,9; 3,5,6

B

2,6,9; 1,5,7; 3,4,8

C

2,6,7; 1,5,8; 3,4,9

D

2,8,7; 1,5,9; 3,4,6

Group the given figures into three classes using each figure only once.
Grouping of Identical Figures mcq question image

A

1,2,4; 3,5,6; 7,8,9

B

1,7,8; 3,5,6; 2,4,9

C

1,3,4; 2,8,9; 5,6,7

D

1,7,8; 2,3,6; 4,5,9

Group the given figures into three classes using each figure only once.
Grouping of Identical Figures mcq question image

A

2,4,7; 1,6,9; 3,5,8

B

1,3,5; 2,6,7; 4,8,9

C

1,5,7; 2,3,6; 4,8,9

D

1,3,5; 2,4,7; 6,8,9

If two series motors are identically coupled. One is running as motor while other as generator. For this combination, the iron losses and frictional losses are found identical for ____________

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