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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

In my power station 220 volts dc battery set. they coneected 84th cell taped

KPTCL,

770

Safety devices in SF6 Circuit Breaker?

DELL,

1 1077

Welding machine

CEL,

1 1053

how many joints are allowed in underground HT cable of 1 KM

782

We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

760

In CTs tan delta point should be earthed , what is the reason behind it?

1261

solar inverters was not connected to the nuteral link .this nutwral possible to any other systems

784

they transformer oil leakeage to beather tank and top parts . they protection relayes was not operated.what is the oil leakeage problem.

1 930

What is the Difference between Power Swing and Out of Step?

1 1381

On Which Pressure PRV is operated.

AEPL,

758

How much amperes needed for starting of 4HP motor?

CM Smith Sons,

1 1017

When color of silica gel will gets change from blue to pink from Top to bottom?

673

If Neutral Grounding Resistor (GR) failed/shorted. Is it repairable.

697

three owners X, Y, z owned some tractors with them, on the first month x gave away the same amount of tractors to y and z ( as much as they possed), similarly in the 2nd month y gave of to x and z similarly by third month z gave to x and y. after this all X, Y, Z had 24 tractors each.

econ,

2 4711

What is reactance, reluctance,capistance, pls give answeer in hinglish and be simply Jo asani we smajh m aa jaye

936


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Un-Answered Questions { Electrical Engineering }

Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

1214


what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

1020


What do you mean by a voltage transformer?

153


how to changeover ups in this power failur time?

1027


Define resonant peak?

178






why normally Generator rating are between 11Kv to 22Kv?

2743


How earthing/grounding done in aeroplanes and ships.

2614


is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.

839


is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.

715


Define open loop control system.

161


what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?

1525


Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

171


What is deference between MCB & MCCB & ISOLATOR

961


what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field

997


If I want to replace a 26KW Slip ring Motor with a Squirrel Cage motor & Drive (for a Hoist Application). How can I approximate the Motor & Drive HP required in new Setup.

1359