Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Engineering Interview Questions

Questions Answers Views Company eMail

can we use existing 6300V alternator for generating 6600V by increasing excitation,what are advantages & disadvantages to alternator & motors of 6600V.

GMR,

1 4249

can we charge 3 ph power transformer delta-star wound with neutral grounded 6.6kV/415V from secondary side(415V) but with primary(6.6kV) open by dg,what are the disadvantages or losses.

1 3124

why the transformer connected like STAR- STAR, DELTA- DELTA, STAR- DELTA, DELTA-STAR ...? why these connections ,,, explain the advantages these connections?

3024

what is the diff between VCB & ABCB breaker in substaions? explain the operating priciples of VCB & ABCB

1 6334

explain the operating principles of CVT & RVT

2 8444

how do we find the nos of bricks in 1 m3 brick masonary

L&T,

16 99890

For a certain load i need 100kw load ,In that case what rating mccb should i use?

5 13308

What are protections for dty type transformers

1844

What is Dry type transformer.How it works

Vatika,

6 16282

Where the Dry type tranformers are used.

5 7329

WHat is the general checks required for Dry type transformers

2092

what is the difference between ACTIVE POWER and REACTIVE POWER.I WANT CLEAR ANSEWER.

8 13410

how many gallon in one quseka

1846

how we can find out the speed of fan without using any measuring instrument

2 5047

what happen if the secondry winding of the transformer is having less no of turns compare to the primery winding.

2 4843

Un-Answered Questions { Engineering }

IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?

2581

what type questions asked in hp cl

1877

I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?

1987

distinguish the knock phenomena of ci and si engine?

6071

How will you measure the eccentricity of the turbine rotor during running

2952

List out the potential risk factors for workers on the construction site?

1097

With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.

1991

what is the need of starter in tube light and what type of starter is used in that?

2035

Draw the circuits of cb, ce and cc configurations using npn transistor.

1139

How are vessel lined with glass or how are they coated?

1144

What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?

1905

How to calculate knee point voltage?

988

what is the main function of capacitors in mccs.

1754

Explain defects found in yarns.

Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

2007

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