Question 1

Online troubleshooting is Performing _____________________

Accepted Answer

troubleshooting on energized circuits

Answer

Troubleshooting

Answer

Troubleshooting on motor

Answer

Troubleshooting on power lines

Question 2

What is sensory inspection in troubleshooting?

Accepted Answer

Using humanly sensor for troubleshooting

Answer

troubleshooting a sensor

Answer

all of them

Answer

sensor for troubleshooting

Question 3

As per regulation of NEC motor can not operated on above the rated value of the following parameters?

Accepted Answer

Current

Answer

Voltage

Answer

Speed

Answer

Frequency

Question 4

What is minor faults

Accepted Answer

All of them

Answer

Lose connection

Answer

Blown fuse

Answer

overload

Question 5

What is Major Faults

Accepted Answer

All of them

Answer

Ground faults

Answer

Open cirucuit

Answer

Short circuit

Question 6

What is Mechanical Faults

Accepted Answer

Frozen bearing,

Answer

Open circuit

Answer

Reverse poles

Answer

All of them

Question 7

Worn bearing is ______________ Fault

Accepted Answer

Mechanical

Answer

Electrical

Answer

Magnetic

Answer

All of them

Question 8

Electrical Fault is ________________

Accepted Answer

Open Circuit Fault

Answer

Worn out Bearing

Answer

Bent shaft

Answer

Frozen Bearing

Question 9

Number 1

Accepted Answer

Style or Model refers to the manufacturer’s specification code

Answer

RPM

Answer

Power factor

Answer

Rated voltage

Question 10

2.__________________

Accepted Answer

NEMA classification of frame size

Answer

All of them

Answer

RPM

Answer

NEC insulation

Question 11

3.__________________

Accepted Answer

H.P. is the output power of the motor measured in horsepower

Answer

All of them

Answer

None of them

Answer

Power Factor

Question 12

4.__________________

Accepted Answer

phase shows the kind of power the motor is designed to operate on

Answer

DC excitation

Answer

Current

Answer

Volts

Question 13

5.__________________

Accepted Answer

the speed of the motor measured in revolutions per minute

Answer

Hertz

Answer

Cycles per seconds

Answer

Frequency

Question 14

6.__________________

Accepted Answer

frequency at which the motor may be operated

Answer

Speed

Answer

P.F

Answer

Volts

Question 15

7.__________________

Accepted Answer

rated voltage at which motor may be operated

Answer

Current

Answer

None of them

Answer

Temp

Question 16

8.__________________

Accepted Answer

Full load Current

Answer

none of them

Answer

Half load current

Answer

no load current

Question 17

8.__________________

Accepted Answer

Full load Current

Answer

Speed

Answer

Excitation current

Answer

VOlts

Question 18

9.__________________

Accepted Answer

rise in the amount in degrees Celsius by which the motor temperature will rise

Answer

All of them

Answer

Insulation temp

Answer

Oil temperature

Question 19

9.__________________

Accepted Answer

rise in the amount in degrees Celsius by which the motor temperature will rise

Answer

None of them

Answer

Temperature machine can handle

Answer

All of them

Question 20

10.__________________

Accepted Answer

10.	HOURS is the period of time the motor may be operated without  being overheated

Answer

Temperature machine can handle

Answer

All of them

Answer

None of them

Question 21

What is OPEN CIRCUIT Fault?

Accepted Answer

All of them

Answer

Break in current path

Answer

None of them

Answer

High resistance

Question 22

What is causes OPEN CIRCUIT Fault?

Accepted Answer

Broken conductor

Answer

high current

Answer

None of them

Answer

vibration

Question 23

SHORT CIRCUIT is caused by  faulty insulation

Accepted Answer

True

Answer

False

Question 24

What is Ground Fault

Accepted Answer

Accidental connection of a non grounded current conductor with conducting materials.

Answer

Connection of phases together

Answer

All of them

Answer

None of them

Question 25

What is Ground Fault

Accepted Answer

Accidental connection of a non grounded current conductor with conducting materials.

Answer

All of them

Answer

None of them

Answer

Connection of phases together

Question 26

What are causes Ground Fault

Accepted Answer

Failure of wire insulation

Answer

Over voltage

Answer

All of them

Answer

None of them

Question 27

What is  installed grounding?

Accepted Answer

it is for safety

Answer

None of them

Answer

All of them

Answer

It is a fault

Question 28

What is difference between accidental & installed ground

Accepted Answer

it is fault and the installed ground for safety

Answer

none of them

Answer

both causes smoothly operation

Answer

both are same

Question 29

Internal causes for failure or abnormal operation of electrical machines and equipments?

Accepted Answer

All of them

Answer

Poor cooling system

Answer

Blocked rotor

Answer

Ground fault

Question 30

Internal causes for failure or abnormal operation of electrical machines and equipments?

Accepted Answer

Short Circuit

Answer

Over current

Answer

Overload

Answer

All of them

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