Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

can a deareator be placed at any height with care that suction (NPSH) for feed pump is satisfied

Sail,

691

Are mechanical seals in pumps direction specified?

Sail,

4 3716

What are the things needed to finish interview successfully from the perspective of interviewee ?

NTPC,

5 3784




write 2 important assumption on fin theory?

753

temperature of gas increases .comment on change in conductivity of gases.

3 1932

a coffee in a cup is kept on open atmosphere .Allow the heat transfer by conduction,convection and radiation.among temperature theoretical(Tth) and temperature measured(Tm), which one is greater?

4 3878

conductivity of porous substance like sponge is depended or independent of pressure?

2 2894

what is the unit of hardness?

NTPC, Suzlon, Novatex,

21 20758




How to protect the pipe line from crrossion.?

MAHINDRA,

9 5012

what is the diffrence betwen primary pumps and secondary pumps in aircoditioning field

Carrier,

813

what are the pistion type?

RRB, Wipro,

1 2846

Please advise your reasons for applying for this role and why you think you are suitable?

1469

I am BITS Pilani , Mechanical Engineering graduate, with aggregate 55%........and since most of the top PSU's have 60% eligibility criteria, I don't know what to do.... Is there no way I could apply in PSUs like, NTPC, ONGC, BPCL etc ever? please reply guys!!!

2 4290

do you see fogging system in power plant?(cooling tower)

TATA,

790

what is the difference between stress and presure althougth both have same unit.

NTPC, JBM,

19 12290


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Un-Answered Questions { Mechanical Engineering }

What are the causes of damage of diesel engine exhaust Valve?

912


Sketch the jacket cooling system?

914


How much machining cost required for 1000x1000x16Thk(Mild steel)

689


what is the difference between cold and hot spark plug? mention their place of use with justification?

1747


why we cant measure absolute entropy directly,but the change we can?

1201






What is the purpose of starting air?

737


Dear Sir, Please send me the questions frequently asked during bhel persoal interview for supervisor trainee With worm regards, Alok Kumar Rout e-mail id- rjdalok22@gmail.com

689


what is the thickness tolerances up to 32 mm

783


what is the use of choper motor in pyrometer ?

786


Sketch the jacket cooling system?

852


List the different devices and components of main switchboard.

1085


"What is fuel oil viscosity, specific gravity?"

780


written test: 1) periodical and monthly maintenance are called preventive or panned maintenance. 2) Mechanical seal parts and their material. 3)Urea plant main parts and their construction material details.4)Name diagram of the given turbine5) Turbine nomenclature like API name.6)All types of corrosion like Galvanic and oxide with example.7)Parts of gate valve and its usage. diaphragm gate valve usage. etc.....

1075


purpose of primary and secondary air? causes of smoke?

1070


How many battery discharges?

743