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 restricted earth fault protection can not operate for phase faults??as there will be a current in secondary of ct,when a phase fault occurs!

GMR,

1 3053

Why not connect relay Y phase for over current and earth fault

HB,

1 4186

difference between minor and major bridge.

Aecom, Bhel,

5 56220

what is the procedure for batching plant calibration??????

BCET,

1 7933

any one tell me what is the volumetric ratio and weigh bathing ratio of 6000 psi concrete. plz help me on this matter.

1 2815

Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?

Air Liquide,

5 12358

What is dynamo?How it works and what is the function of dynamo in a DG.

2584

How to get KWH,Voltage & current datas from 2KVA hybrid inverter to my computer

2019

As a foreign applicant, what do you understand about our company before sending your application CV for consideration?

Nexel,

3643

why should we use 20mm graded metal only in vrcc?why we shouldnot use 40mm metal?

2 11181

how lap length is increased with increase of Grade of steel?

2 27053

why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

HCL,

2181

What is dynamo?How it works and what is the function of dynamo in a DG.

Amrapali,

3 13149

what is the formula to get the 3 phase motor winding resistance? for example, i have 460v and 3A ? what would be the per phase winding resistance? thank you..

Sabic,

4 8414

where the use of direct action control valve?

2 5957

Un-Answered Questions { Engineering }

I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.

2897

i have want jindalsteel tecnical wrritten test paper.

2365

What is pitting ? How it is caused ?

1131

what is meant by vector group of a transformer? How can it be derived?

2007

What is electrical cable termination

2628

Can any one send me the syllabus for RRB Chennai, for section engineer, mechanical. mail it to mail Id vijaymahantesh.sk@gmail.com

2092

What is the critical speed. Compare the critical speed of hollw shaft and solid shaft.

2635

sir i m final year diploma(mech. engg)student, can i apply for psu,s as like sail, bhel,gail,dmrc.etc..if yes then give me detall about iton my e-mail id meatul90@rediffmail.com...thank you.........

2862

what will happend if i fire this command in linux " rm -r / "

1812

what is pulse logic system?

1100

On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

4377

How are load losses and no-load losses measured at site in a DG set?

1751

what are the reseach done by itc brfore launching e-copal

1874

Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

2736

what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

2011

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