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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the type of electrical earthing recommended in hard rock area

2 6061

what is the major difference between dc generator and synchronous generator?

4 8585

If we have 630kva step down transformer to operation 3 phase motor 150 kva which size of cable is used? at circuit breaker to 3 phase motor or to electrical board

1 2761

What happen when switch yard one pole not tripe when you tripping the breaker

Adani,

3 5078

What will happen if we give the 3 phase supply to the rotor of slipring induction motor?

3 3822

why name plate detail HP/KW rating of a motor is different from measured value HP/KW using formula?

MAHINDRA,

1 4155

Can somebody tell me the type and amp of transformer used to implement 600VA UPS? Thanks in advance.

1 2324

how to reduce disel generator voltage from 410-60 hz to 380v-60hz

1 4029

If two generator running parallel, at that condition both ngr Taken in line or taken any one ngr, but why any one or both Ngr in line? Ngr is use for which purpose?

3 6076

Q2). When 3 dice are simultaneously thrown, which of the following would be obtained? (a) Result 1: “A 5, a 3 and a 6” (b) Result 2:” A 5 three times” (c) Result 3:”A 5 twice and a 3” (d) All three results are equally likely. (Musigma Question)

Mu Sigma,

2 3076

Does the electricity supply authority send its customers power (kW) or voltape (V)? Asked by Ivan Muliro

2 3178

the inertia constants of two machines are respectively 30and 42 MJ per MVA.when the change in frequency due to change in load in first machine is 12 Hz,the change in second machine frequency will be?

1 4297

why do transformer make a sound

4 4853

differnce between single acting and double acting solenoid valves

1221

how to interlock 2 incomer,1 buscoupler MCCB,like we interlock an ACB... pls answer this question and if possible send me the ckt diagram..

2 13933


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Un-Answered Questions { Electrical Engineering }

The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

1515


Differentiate between Zero and Negative sequence current

1277


What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?

1249


electrical knowelge

502


Whether power factor should be high or low? Why?

503






how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

962


What facility we get after CT secondary earthing and how?

1565


What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1

1116


what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?

1483


WHAT IS THE DIFFERENCE BETWEEN GENERAL INVERTER AND SOLOR INVERTER TELL ME PLZ

1454


what are the disadvantages in GIS over AIS

1751


why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?

1257


during installation time of transformer and alternator which points we have to observed?

1338


What is the difference between line drop and percentage line drop?

899


how does high earth to neutral voltage affect electronic equipment?

764