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 is the meaning of 'A synchronous motor floating on line'?

2 22558

how to calculate the no. of turns in secondary side of CT?

1 6717

Between Turbo alternator and Hydro alternator which one is more difficult to cool and why?

2 15400

Between AC generator(alternator) and DC generator which can be designed for high voltage and why?

1 4834

How damper winding in synchronous motor suppress Hunting?

Bhel,

2 26028

Which is stiffer between salient pole rotor and cylindrical rotor synchronous machines? Justify your answer.

1 14594

Which theory is used in the analysis of salient pole rotor synchronous machines? Who is credited for this developement? Could the same theory be used for cylindrical rotor synchronous machines?

1 6675

Why alternators are rated in KVA?

12 39466

Between rotating armature type and rotating field type arrangements which one is adopted for large rated alternators and DC generators.Why there is difference in the choice?

1 11704

What is the need for checking knee point voltage for CT's?

1 4572

ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

2102

what are the main problems that happen in an emergency light and how to fix them ?

2 5853

Without seeing the nameplate descriptions of a rotating machine,Is it possible to say which one is a motor and which one is a generator? How would you certain this?

3 6625

How the speed of synchronous motor changes with the variation of load?

1 5954

Why synchronous motor runs at a fixed speed? what is the name of that fixed speed?

4 16721

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Un-Answered Questions { Electrical Engineering }

Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

3026

Why human body feel electric shock?

1078

he compression ratio for a petrol engine generally lies between

1294

If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?

1452

What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

1998

how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence

2987

What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

1590

Connection diagram for KW meter and Kva meter

2335

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

1972

What type interview questions ask in Electrical technicians

1796

what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.

1855

Dyn1 transformer vector group testing how to do

1803

Why back emf used for a dc motor? Highlight its significance.

1194

Mention the disadvantages of low power factor?

1130

Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

1139

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