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Engineering Interview Questions
Questions Answers Views Company eMail

why open circuit test is conducted on hv side and short circuit test is conducted on lv side of a transformer ?what is the reason for it ?

HCL, NTPC,

3 47380

why core is useful for a transformer ?and also in its operation ?

1586

why core is useful for the transformer and in its operation

 1 2711

what kind of thread is the garbage collection?

HCL,

1 3331

1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

 1602

Company insists on a joining bond to protect the investment made in recruiting, training and mentoring employees. Are you willing to make this commitment ? -1 year for candidates > 5 years experience -2 years for candidates with 2-5 years experience -3 years for candidates with 0-2 years experience

 1380

why trip circuit supervision is taking through breaker contact? what happen if takendirectly?

GE,

2 3427

What is Curtailing of R/F

 1988

is there any codal provision for soil cousion over the Hume pipe of Dia 1.2 m.

 1581

1)define the critical items in rcc framed G+18 bldg. as Cr Activity 1,Cr Activity 2,Cr Activity 3...etc. 2)on what logic is MSP and Primavera planning based.FS SF FF...

 2 4475

wat is differential? And mention the working?

 2 3272

why voltage coil in wattmeter called as pressure coil why the pressure term is used in wattmeter?

NPCIL,

1 7763

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

Bhel,

3 4929

If short circuit ratio is high is it bad or good for a machine then tell the reason...

Bhel,

1606

Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

Bhel,

1452

Un-Answered Questions { Engineering }

is the value of inductance depends upon the evalue of thitha in doubly excited machine?

1461

Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?

1905

What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

998

What is process planning?

689

How to check the round duct measurement

588




What are the two kinds of spinning machine?

1

What is primary and backup protection?

751

Why self closing sounding pipes are used onboard?

606

Please tell me the quantity of cement, sand, flyash, foaming agent required for 1 cubic meter of cellular lightweight concrete blocks. also , is there any admixtures required for the CLC blocks production.

1962

10 Mtr Hight of Lighting Arrestar how much area coverd??

2028

Explain wear resistance of titanium?

557

Why is silicon preferred over germanium in the manufacture of semiconductor devices?

623

why traction voltage is 25kv

1730

Which is the most commonly used code for representing alphanumeric information?

664

What is a parabolic signal?

644

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