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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

whose the first invented AC voltage or DCvoltage

4 6785

What is the work of ACCP in LT panel?

Juniper Networks,

5 30118

How many capacitors using in LT panel as per Govt rules?

Electrical Tech,

1972

if we going for high voltage usages what are the considering factors, why those factors are effected.... please give me an answer related motor factors like wnidnig, frame, temp etc

ABB,

1 2456

we done magnetic balance test for 33KV /440V transformer in our company , but the ratio out is confusing us Voltage applied in RY = 440 , at RB = 320 and YB = 60 RY 440 = ( RB + YB ) 380 only Please let me know what type of problem is it.

2 5385

Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???

2084

help me with the question that might be ask on the interview for technical position

Eskom,

2290

what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?

5 7222

we can conformed the vector group of the transformer. How?

2073

what is percentage impedance of transformer? explain its significance

ABC, Bosch,

2 17874

what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

Bosch,

2080

FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

3401

what is meant by tranformer impedance?

Synergy,

2605

How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?

2401

WHY MOSTLY BATTERY VOLTAGE IS IN MULIPLE OF 2 LIKE 2V,4V,8V,16V,18V....

Exide,

2 7545

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Un-Answered Questions { Electrical Engineering }

What is the difference between AC and DC injection methods for rotor earth fault protection

2226

What is a DC series motor?

1239

Working of microwave oven?

2246

working principle of AC Servo Motor with its construction

8878

What does the term supermesh means?

1189

How we calculate the size of ht cable for any transformer

2086

When are the directional relays used?

1062

What is conventional thermal current (Ith)

4443

hi this is hema can anyone mail me previous years questions for the APPSC-A.E.E (in electrical stream.) ......thank u.

1922

describe the Tranformer testing procedure

1881

Explain cos(theta) and Sin(theta)

2107

How many types of colling system it trformers?

1172

What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?

1940

What are the symptoms of a bad PG card of a drive (inverter) esp. of Yaskawa Ac Drives (inverters) G7 ?

2049

What is meant by earthhing of a magnetic flow meter and when to use empty pipe detection?

2239

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