Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why are some relay circuts designed to have the ct current flow through the neutral instead of the phase wire, such as in some diff relays?

1 2215

Why should we use the igniter in the sodium vapour lamp.

Delphi, PICT, NTPC, Mudhra, ABB,

7 57050

what is the ideal earth resistance

Enercon, Amit Enterprises,

11 14105

What are the difference between these terms ? e.m.f, voltage, potential, potential difference, current etc? what are the difference between these terms ? (electromotive force) e.m.f, voltage, potential, potential difference, reference potential, reference potential difference, current. How can i explain and describe these all terms in single line each and little more explaination too thanks


2 5003

How to check the specific gravity of the two 12 V batteries connected in series to a 24 V UPS and inverter ? will we have to disconnect all the connections and turn off the UPS and inverter or not ? will we have to check specific gravities in each cell of the two batteries ? what is the name of the instrument that is used to check the specific gravity and whats the procedure to check the specific gravity with it ? thanks

2 3989

how one can check the Current of a DC 12 V battery ? Procedure. I told that take a thick wire (having more wires in it) and then join the + and - terminals of battery with the help of two ends of a thick wire .... is this correct or wrong .....

1 1873

can you check the current and voltage of a 12 V battery by a digital multimeter in this fashion that apply the digital multimeter across the battery terminals directly ? say yes or no ... i sais yes ........... is this true or false ? plzz tell me and also explain ........ plzz thanks

4 2673

What is the working of AVR in AC generators?

Navrachana University,

13 81845

MCCB 400 Amps 50KA 430Volt AC What is mean by 50KA

15 34449

what are the safety measures of induction motor?

3 3646

what are the safety measures of induction motor?


What is an electric arc?

3 2254

How will you Physically differentiate A.C and D.C motor?

BSNL, Polycab,

10 13022

In a Dyn11 transformer, how are the 3 windings of the delta connected? Assume that R1-R2, Y1-Y2, B1-B2 are the 3 windings on the HV side.

3 3989

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Un-Answered Questions { Electrical Engineering }

What we mean by vintage of an engine+Generator?


Control wiring of a dol starter for forward and backward


why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?


After doubling voltage from solar cells & use step down voltage transformer can we get high current output with low voltage.


In which working principal temperature transmitter work.explain in detailed.


A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????


Why earthing is necessary for any equipment?


what is transient voltage?


What is the function of retrip in busbar?


Why the efficiency of generator is more than motor in swinburne's test


How to calculate the no of Ceiling fan (1200mm sweep) per unit area?


explain the function of brush less dc motor?


how to avoid Saturation in C.T?


what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker


what is the significance of tan&delta and how it performed in power transformer