Electrical Engineering Interview Questions
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Is there a possibility to use such a treshold voltage for the NMOS part of a CMOS circuit that during the switching it will start conducting only after the PMOS part will be already closed, by this eliminating the leakedge current? Please note, I'm not asking about the well bias in standby mode, but about the "antileakedge" measures during normal operation.

712

what is the length of air terminal in lightening arrester system.

1 2876

if v r considering a 4000/1A ct,if v inject 1 amps in secondary core wat happens?(consider as 2 core ct,each for metering and protection)

1 1661




how will you determine the short circuit capacity of a network

Dalkia,

3 5566

In a three phase transformer(delta/star connected)when i touch one end of the bulb in any one phase and other end to earth..will the bulb glow or not..if not why?..i'm touching the bulb in star connected side...

6 4961

importance of air gap in transformer

5 7650

How to select the cable size for the given load ?Pls explain the Formulae

3 5164

if two bulb of 50w &30w apply in series having 230v the which bulb glow bright ,why

10 12769




two generator runnig with parallel but only one NGR on And one off Why

1 4176

what is earth-fault?when it occurs? to check where it occurs what type of test should we do?

ONGC,

863

how tan-delta test is performed?

GE, VDL,

1 4779

why transmission voltages are in multiple of 11kv?

10 19637

what is gridrotor resistance starter

662

what is the switching substation

2 4365

tell how current tranfomer works

2 2679


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Un-Answered Questions { Electrical Engineering }

WTA used cb?

646


can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?

474


While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?

2192


where is the need for short circuit test for 3 see is required and why? can you explain in brief with application

666


when we decide to use soft starter drive or vfd drive in mcc to operate apump?

832






why we use 630mm single core cable for transformer secondary side and why two neutral cable

535


how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?

1483


DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

1062


how to calculation increase power factor for single phase

1027


Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?

621


why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

251


how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.

1152


If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

834


how to calculate the formula of cable size if motor kw is given

919


How to calculate main incomer rating of APFC Panel ? Let's say i want to find main incomer for 11kV, 1000kVAR Panel.

149