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

Why air gap in rotating machines should be small?

3 7839

Why rotating machines are not allowed to run near critical speed region?

2 6604

From stability point of view,What(higher/lower) should be the value of inertia constant of rotating machines?

1 3791

How to calculate cement qty of M10, m20, m25 ? I got the formula but I lost it.

3 60022

Cement Co-eff. in block 1:6, brick1:4 work?

2 7214

how to reduce humming noise in transformer?

3 10241

There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 6750

what are the things to be mentioned for the question "Tell me about yourself??

CTS, Patni,

6 9111

how to calculate the density for high density concrete ? or is it same as the density of RC?

Gammon,

2426

Why oil preferred over the air as a cooling medium for high rated transformer?

1 4367

What is emperical relation.Name few of them which are used in electriacl engineering?

1 4166

In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1964

difference between dol and rdol startors?

Vijai Electricals,

2 33906

what is value of Jin transformer

2100

How to check percentage of bulkage of sand in RCC?

4 24033

Un-Answered Questions { Engineering }

We use two different bands for GSM/DCS communications; GSM900 and DCS-1800. Which one is the better of the two in terms of quality and coverage?

5800

Can u please post some questions of MTNL junior telecom officer exam?

3639

In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

1817

What is stop band?

1134

Which do you think is the most significant cause of energy loss in a factory?

2241

Explain the role of ISO in quality assurance.

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1806

im ece student.im applyng 4 rrb junior engineer (electrical) i got hallticket....plz...try to send the syllabus of junior engineer(electrical)

2931

How do you determine what suction pressure should be in r22 air conditioning compressors suction line?

1068

what is the exact dia of 8swg and 10swg gabion wire

2324

What distance should be maintained between networking (data) cable & power cable if both cables are run in a seperate condute pipe parallaly?

1072

Why the output of OP-AMP is always less than Vcc?

1913

What is power electronics?

1040

What is back diode?

1055

Explain the construction and pros of using plasma screens.

955

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