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L&T Electrical Engineering Interview Questions
Questions Answers Views Company eMail

WHY R USE IN BRUSH IN THE MOTOR?

6 5261

why PT transformer primary r the grounded?

2 4406

why r use the wave taper in the substation ?

2 3439

Why r use in the tap changing x' mer.

2 4045

Why we use stones in switchyard?

2 6815





Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ? 2) Why ups required dedicated earth?

8 14942

what do you mean by earth fault in transformer?

2 14569

why the Different manufacture's rating of Gas genset are different? i.e : cummins genset rating is in KVA .( 625kv). While GE- Jenbacher make genset have rating in Kw. (625 kw)

1 2232

if neutral earthing is weak of a system then how can we improve it ? Technically explanation ??

1 3441

sir, i want to know the calculation for find rated current for cable sizes.(both copper & aluminium) with examole. please sir for example: 35sq.mm al.cable is withstands for how many amps? is suitable for 45kw motor?

5 8913

What is the problem, if a circuit breaker is not closing.

4 16573

1.what is surge 2.what is lightning 3.what is switching 4.difference between surge,lightning,switching used in power system 4.definition of surgearrestor,lightningarrestor 5.adv and disadv of surgearrestor,lightningarrestor 6.uses and purpose of surgearrestorand lightning arrestor 7.block dia of surge arrestor 8.blockdiagram of lightning arrestor 9.operation and working of surge arrestor and lightning arrestor 10.basic formula of surgearrestor and lightning arrestor 11.basic diagram of surge arrestor and lightning arrestor

1 4577

in an electronic tri vector meter when the current and voltage sequence changes ? what is the effect of phase sequence on recording of meter

1161

what is the difference between 3 phase 3wire &3phase 4 wire meter?what is the advantage of 3p3w over 3p4w?

1 13373

Why should we use Star-Delta connection in step down power transformers?

7 15132

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L&T Electrical Engineering Interview Questions


Un-Answered Questions

On friday, you issued several insert statements using query analyzer. You then verified the data had been correctly entered with a select statement on monday, your users report that the data is not there what happened?

94


What is the meaning of up to docs in app and what is the use of it?

94


What is the platform?

90


What is the name of c# compiler?

67


What should be the Sandwitch type Al. bus bar capacity for 2 M.W.Gen. set, having continuous full load current- 3463 Amps,ambient temp.- 50 Deg. C., Required temp. raise-20 deg.C., it will run 24 hrs, 365 days on full load, required highly reliable.

1597






What is the significance of the control unit in the 8085?

129


what is thread in Java ?

143


What is jms active mq?

60


How to isolate primary osteoblasts?

1030


What is the use of abap data dictionary? : abap data dictionary

125


need testing projects where can i find them

1136


A person somehow gets hold of an extraordinary rare bird, keeps it as a pet for two years and then sells it off. Will related profit be taxable as capital gain?

1186


What is the central limit theorem?

21


What method is used to specify a container's layout?

114


how to calculation increase capacitor,increase power factor for three phase.

1192