Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

2305

Wtat is vaccum currcuit breaker.define with cause of used.and where be use it Devise .

1 3937

how invertor convert the dc into ac give brif detail

2093

How we can convert H.P into KW or Vice versa

Suzlon,

11 19420

Why 4 pole generator generates more power and 6 pole generates less power campare to 4 pole

Julius Berger, Suzlon,

2 6428

Why Batteries are rated as AH i.e AmpereHour,and its formula to converting AmpHour to Amp

Suzlon,

4 8993

What are the different methods of improving power factor,especially in Wind Sector

Suzlon,

2 7033

11KW Delta motor is taking about 44Amps in star and goes upto 70Amps in delta and trips OFF. The rated current is 26Amps. Application is for the blower. The motor takes ( no load without coupling impller ) only 2.5A and 5Amps in star & delta starter test.Need to know why its taking high current.

Pfizer,

10 19642

What is relation b/w Transmission Lines & Communication Lines ?

2 8731

quantizer means?

1888

WHAT IS DIFFERENCE BETWEEN idmt and instentanous relay? is idmt is used as back up protection or else?or when instantenous relay saturates IDMT will operate???

BK, REL,

1 11496

what is threshold voltage for a relay???what does it exactly means ?whats its value in our indian transmission system say 11kv feeder RMU relay

3 13212

if the back emf eqution for dc motor EB=(QPNZ/60A) THEN what is the value of A for PMDC MOTOR OR how can dicide the value of "A"

BSL,

2 5102

IF WE SELECT THE 60H FREQUENCY IN INDIA WHAT WILL THE GOOD AND BAD EFFECT ?

3 6661

How can we calculate the capacitance of generator?

1 4613

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Un-Answered Questions { Electrical Engineering }

How to calculate approximate load loss of a distribution transformer by knowing %ge imp of transformer?

2185

What is the principal of motor?

1065

where rlc series ckt used?

2163

When we use 3 terminal resistor?

1191

The screw thread commonly used for transmission of motion is one of the following types of threads

1108

Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.

2162

State angle criterion.

1074

How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???

2020

As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

3589

Define the term Capacitance and Inductance?

1070

what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2039

what is a bus post insulator? explain its application in a substation.

12536

i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?

1788

what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

2305

Why efficiency of generator is higher than motor at a particular load?

2021

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