wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Induction Motor

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

An electrical motor changes electrical energy to ______________ energy

a)

Mechanical

b)

Chemical

c)

Physical

d)

Potential

2.
A generator is used to light a bulb.  Energy for lighting the bulb actually comes from a
a)
coil or wire
b)
mechanical intput to the generator
c)
magnet in the generator
d)
plug where the generator is connected to the wall
3.
3-phase voltage supply given to ___________ of 3 phase Induction Motor
a)
Stator
b)
rotor
c)
Laminations
d)
None of the above
4.

The principle of operation of three phase induction motor is similar to........

a)

Synchronous motor

b)

Repulsion start induction motor

c)

transformer with a shorted secondary

d)

capacitor start induction run motor.

5.

Slip of Induction Machine can be written as

a)

Stator Cu loss/Rotor output

b)

Rotor Power/Rotor input

c)

Rotor Cu loss/Rotor input

d)

Rotor Cu loss/Rotor output

6.

If slip value is less than 1, it means, the machine is

a)

motoring

b)

Braking

c)

Generating

d)

Transferring

7.

What creates a rotating magnetic field in an induction motor?

a)

The angular speed of the motor

b)

Three phase current flowing in the rotor

c)

Three phase current flowing in the stator

d)

A single phase current flowing in both the rotor and the stator

8.

3-phase induction motor is a self-starting machine

a)

True

b)

False

9.

3-phase induction motor will have_________ starting torque and __________starting current.

a)

High, Low

b)

Low, High

c)

High, High

d)

Low, Low

10.

What happens when Induction motor runs at synchronous speed, motor will

a)

Burn

b)

Stop

c)

Delivers Real Power

d)

Delivers reactive power