Characteristics of DC Motors MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Characteristics of DC Motors, 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 Characteristics of DC Motors 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 Characteristics of DC Motors mcq questions that explore various aspects of Characteristics of DC Motors problems. Each MCQ is crafted to challenge your understanding of Characteristics of DC Motors 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 Characteristics of DC Motors MCQs are your pathway to success in mastering this essential DC Machines topic.

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Characteristics of DC Motors MCQs | Page 3 of 6

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Q21.
Which of the following DC motor can be used at conveyors?

a.

Series motor

b.

Shunt motor

c.

Differentially compound motor

d.

Cumulative compound motor

Discuss
Answer: (a).Series motor
Q22.
Which statement is correct about DC series motor?

a.

Has its field winding consisting of thick wire and more turns

b.

Has a poor torque

c.

Can be started easily without load

d.

Has its field winding consisting of thick wire and less turns

Discuss
Answer: (d).Has its field winding consisting of thick wire and less turns
Q23.
In which of the following applications DC series motor is invariably tried?

a.

Starter for a car

b.

Drive for a water pump

c.

Fan motor

d.

Home appliances

Discuss
Answer: (a).Starter for a car
Q24.
The speed of a DC series motor is ___________

a.

Proportional to field current

b.

Proportional to the square of the armature current

c.

Proportional to the armature current

d.

Inversely proportional to the armature current

Discuss
Answer: (d).Inversely proportional to the armature current
Q25.
In a DC series motor, if the armature current is halved, the torque of the motor will be equal to

a.

100% of the previous value

b.

50% of the previous value

c.

25% of the previous value

d.

10% of the previous value

Discuss
Answer: (c).25% of the previous value
Q26.
Applications demanding large applications at starting and small torque while running use DC series motor.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q27.
Which DC motor is generally preferred for cranes and hoists?

a.

Series motor

b.

Shunt motor

c.

Cumulatively compounded motor

d.

Differentially compounded motor

Discuss
Answer: (a).Series motor
Q28.
Which of the following motor has the poorest speed regulation?

a.

Shunt motor

b.

Series motor

c.

Differential compound motor

d.

Cumulative compound motor

Discuss
Answer: (b).Series motor
Q29.
Buses, trains, trolleys, hoists, cranes make use of DC series motor because __________

a.

It provides low starting torque

b.

Cost efficient

c.

It provides high starting torque

d.

It requires minimum power compare to other motors

Discuss
Answer: (c).It provides high starting torque
Q30.
DC motor is to drive a load which is having certain minimum value for most of the time and some peak value for short duration. We will select the _______

a.

Series motor

b.

Shunt motor

c.

Compound motor

d.

Cannot be determined

Discuss
Answer: (a).Series motor
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