DC Generator MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on DC Generator, a fundamental topic in the field of DC Machines. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our DC Generator MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of DC Generator mcq questions that explore various aspects of DC Generator problems. Each MCQ is crafted to challenge your understanding of DC Generator principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace DC Machines tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our DC Generator MCQs are your pathway to success in mastering this essential DC Machines topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of DC Generator. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your DC Generator knowledge to the test? Let's get started with our carefully curated MCQs!

DC Generator MCQs | Page 6 of 7

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Q51.
For a given compound DC machine, Net field current obtained from characteristic is equal to 7.5 A, where shunt field current is equal to 5 A, armature current is 505 A, demagnetizing current equal to 0.95 A and shunt field winding of 1000 turns at rated speed of 1000 rpm. What will be the series field turns?

a.

7

b.

8

c.

5

d.

9

Discuss
Answer: (a).7
Q52.
For connecting two generators in parallel, they should have __________________

a.

Same current rating

b.

Same ohmic rating

c.

Same voltage rating

d.

All ratings must be same

Discuss
Answer: (c).Same voltage rating
Q53.
While connecting two DC generators in parallel, which of the following is not a desirable condition?

a.

Same voltage rating

b.

Same percentage voltage regulation

c.

Same percentage speed regulation of the prime movers

d.

Same current rating

Discuss
Answer: (d).Same current rating
Q54.
We connect two generators in parallel _____________

a.

For large DC load

b.

For small DC load

c.

For any DC load

d.

For any AC or DC load

Discuss
Answer: (a).For large DC load
Q55.
Load sharing of two generators connected in parallel is determined by __________

a.

Internal characteristics

b.

External characteristics

c.

Both internal and external characteristics

d.

It doesn’t depend on load sharing

Discuss
Answer: (b).External characteristics
Q56.
For a parallel operation of 2 DC shunt generators, we get net external characteristics ___________

a.

Starting from the same no-load point and between generator 1 and generator 2

b.

Starting from the same no-load point and below generator 1 and generator 2

c.

Starting from the same no-load point and above generator 1 and generator 2

d.

Can’t be determined

Discuss
Answer: (c).Starting from the same no-load point and above generator 1 and generator 2
Q57.
When two compound generators are connected in parallel, when load current in generator 1 is increased __________

a.

Both generator will share same load

b.

Generator 1 will start running as motor

c.

Generator 2 will be overloaded

d.

Generator 2 will start running as motor

Discuss
Answer: (d).Generator 2 will start running as motor
Q58.
While running two compound motors in parallel, we connect equalizer ring between ___________

a.

Two armatures

b.

Two fields

c.

Two load points

d.

Anywhere

Discuss
Answer: (a).Two armatures
Q59.
When two DC series motors are connected in parallel, the resultant speed is __________

a.

More than the normal speed

b.

Loss than the normal speed

c.

Normal speed

d.

Zero

Discuss
Answer: (a).More than the normal speed
Q60.
External characteristic differ from internal characteristic in DC series motor by ______

a.

Iₐ *(Rₐ + Rₛₑ)

b.

Iₐ *Rₐ

c.

Iₐ *Rₛₑ

d.

If *Rₛₑ

Discuss
Answer: (a).Iₐ *(Rₐ + Rₛₑ)
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