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MCQ ON DC GENERATOR PAGE - 2

1.

The brushes are alwys placed along

Answer/ Hint      

Answer : A

Explanation :

2.

The function of compensating winding is to neutralize

Answer/ Hint      

Answer : C

Explanation :

3.

In any d.c. generator, the emf generated in the armature is maximum when:

Answer/ Hint      

Answer : B

Explanation :

4.

The method which can be used to improve commutation process is

Answer/ Hint      

Answer : D

Explanation :

5.

The function of interpoles is

Answer/ Hint      

Answer : D

Explanation :

6.

Shunt generators are used where the main requirement is a constant.

Answer/ Hint      

Answer : D

Explanation :

7.

Interpoles are normally connected in

Answer/ Hint      

Answer : B

Explanation :

8.

In d.c. generator, which loss varies with the load

Answer/ Hint      

Answer : A

Explanation :

9.

In d.c. generators,  lap winding is used for ;

Answer/ Hint      

Answer : C

Explanation :

10.

D.C generator preferred for charging automobiles batteries is:

Answer/ Hint      

Answer : A

Explanation :

11.

The over all efficiency of a d.c. generator lies in the range of :

Answer/ Hint      

Answer : D

Explanation :

12.

The function of an equalizer ring is

Answer/ Hint      

Answer : C

Explanation :

13.

The carbon brushes of DC machines become shorter by wearing out during the running time of the machine. At which length do you have to change the brushes

Answer/ Hint      

Answer : D

Explanation :

14.

A2 KW, 200 V,DC generator will supply a load current of

Answer/ Hint      

Answer : C

Explanation :

15.

The essential condition for stable parallel operating of two D.C generators having  similar characterstics is that they should have

Answer/ Hint      

Answer : B

Explanation :

16.

D.C. generators are connected to or disconnected from the busbar only under the floating condition. This is done to avoid

Answer/ Hint      

Answer : D

Explanation :

17.

For parallel operation the D.C generators normally preferred are

Answer/ Hint      

Answer : C

Explanation :

18.

Equalizer bar is necessary for parallel operating of DC

Answer/ Hint      

Answer : A

Explanation :

19.

DC shunt generators are most suited for stable parallel operation because of their votlge characteristics

Answer/ Hint      

Answer : B

Explanation :

20.

Two parallel shunt generators will divide the total load equality in proportion to their kilowatt output ratings only when they have the same

Answer/ Hint      

Answer : D

Explanation :

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