Free Printable Introduction to DC Motor

1.

what is the function of using bearing in DC Motor

a)

connect the supply

b)

produce magnetic flux

c)

cover the motors parts

d)

reduce friction

2.

Which one of the following is an application of DC motor?

a)

Transformer

b)

ceiling fan

c)

cordless drill

d)

Water pump

3.

what is name of device in the figure shown below

a)

Transformer

b)

DC motor

c)

drill

d)

electromagnet

4.

In DC motor the resistances value of the Shunt and series windings are

a)

Same

b)

Shunt winding > series winding

c)

Shunt winding < series winding

d)

Shunt winding + series winding = 1

5.

) In the figure shown, part number (1) is

a)

frame

b)

Stator (field coil)

c)

Shaft

d)

Armature

6.

In the figure shown, part number (1) is

a)

frame

b)

coil

c)

Shaft

d)

Armature

7.

In the figure shown, part number (1) is

a)

frame

b)

coil

c)

Shaft

d)

Armature

8.

In the figure shown, part number (1) is:

a)

frame

b)

coil

c)

Shaft

d)

Armuture

9.

R.P.M stands for

a)

Rotation Per Meter

b)

Revolutions Per Meter

c)

Rotation Per Mile

d)

Revolutions Per Minute

10.

In a continuity test for a motor, if the reading of ohmmeter is infinity(∞), then winding is:

a)

Open-circuited

b)

Short-circuited

c)

Grounded

d)

Not insulated

11.

which one of the following convert electrical energy into mechanical energy

a)

dc generator

b)

transformer

c)

rectifier

d)

DC motor

12.

The following is a part of the DC motor?

a)

Capacitor

b)

Stator

c)

Starting winding

d)

Centrifugal switch

Introduction to DC Motor

Total questions: 12

Worksheet time: 6mins

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