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

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,

1994

Are mechanical seals in pumps direction specified?

Sail,

4 6981

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

NTPC,

5 7961

write 2 important assumption on fin theory?

2072

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

3 4769

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 7119

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

2 5304

what is the unit of hardness?

Novatex, NTPC, Suzlon,

21 38413

How to protect the pipe line from crrossion.?

MAHINDRA,

9 11226

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

Carrier,

2000

what are the pistion type?

RRB, Wipro,

1 5225

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

2945

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 6528

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

TATA,

1968

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

JBM, NTPC,

19 23796

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Un-Answered Questions { Mechanical Engineering }

Disposal of radioactive waste materials and spent fuel is a major and important technology. How the waste radioactive material is disposed off ?

1154

Why gas containers are mostly cylindrical in shape?

1034

How Much static pressure as per NFPA standard is required in the hydrant line?

1693

Explain nuclear reactor?

1181

What is a clock maker called?

1288

Which are the sheets of metals?

1090

Explain what meant by Transmissability in Vibration ?

2235

What are you going to inspect or check when you open the crankcase?

1983

What is the most important, or helpful,project that you have contributed to?

1001

If you are scientist to b e and you wish to develop a self-generating power appliances, what would b e the ranking of importance to apply your concept of creating energy using alternator: 1. Washing Machine 2. Motor Water Pump 3. Electric Fan 4. Electric Stove 5. Flat Iron – Which one will b e your foremost and the least at the rank of 1 to 5? Why is that so? Defend your answer.

1628

What is difference between Higher calorific value and lower calorific value?

3136

Give one example of metal classified as per structure as bcc, fcc, hcp and ccp.

1055

What is the thermal efficiency of a diesel engine?

1900

What causes friction in the cylinder?

1933

Thermo dynamics,Mechanics,Machine design,Design of machine members,dom,tom,strength of materials

3657

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