Question 1

A single phase ac motor end housing is broke, what you will do to fix motor?

Accepted Answer

replace the end housing

Answer

buy a new motor

Answer

maintenance the end housing

Question 2

The noise from electrical motor while its running because:

Accepted Answer

Bearing is damaged

Answer

Run for a long time

Answer

Just started

Answer

is small

Question 3

To replace a broken pulley of the motor, which of the following tools is suitable to use:

Accepted Answer

Puller

Answer

Spanner

Answer

Megger

Answer

Hammer and chisel

Question 4

The correct tool that must be used to replace the bearing of the motor is:

Accepted Answer

Bearing puller

Answer

Screw driver

Answer

Hammer and chisel

Answer

Pliers

Question 5

An important step before disassembling the single phase motor is:

Accepted Answer

Disconnect the power supply

Answer

Screw driver

Answer

Ohmmeter

Answer

Open winding

Question 6

What is the tool  which take the pulley out?

Accepted Answer

Puller

Answer

Extractor

Answer

Ranch set

Answer

Adjustable spanner

Question 7

In a single phase motor the bearing is used to:

Accepted Answer

Decrease the friction while running

Answer

To support in the starting torque and disconnected after 75% speed.

Answer

Support the weight of the armature, and keep the armature cantered within the field poles

Answer

To disconnect the starting winding after 75% of motor speed

Question 8

Excessive electric noise?

Accepted Answer

Mechanical fault

Answer

Good connection

Answer

Not connected

Answer

Size of wire is big

Question 9

Give protection and support to the machine parts:

Accepted Answer

Frame

Answer

Commutator

Answer

Brushes holder

Answer

Terminal box

Question 10

Shaft is part of?

Accepted Answer

Armature Assembly.

Answer

Bearing Assembly.

Answer

Shaft Assembly

Answer

Brush Assembly

Question 11

Wearing gloves during workshop are required?

Accepted Answer

For safety your hand

Answer

For safety your head

Answer

For safety your feet

Answer

For safety your eyes

Question 12

Wearing Safety shoes during workshop are equired?

Accepted Answer

For safety your feet

Answer

For safety your eyes

Answer

For safety your hand

Answer

For safety your head

Question 13

Wearing overall during workshop is required?

Accepted Answer

For safety all body

Answer

For safety your head

Answer

For safety your feet

Answer

For safety your hand

Question 14

Explain, why water should not be used for cleaning the outside surface of the motor?

Accepted Answer

Because the water is a good conductor to electricity

Answer

Because the water is salted

Answer

Because the water is sweet

Answer

Because the water has high resistance

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