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

Mechanical Engineering Interview Questions

Questions Answers Views Company eMail

why do we require cooling towers in case of water cooled chillers?????

2 5725

is it necessory to use heat exchanger in case of water cooled chillers & cooling towers?????

3 5247

plz anyone provide me the sample test papers of ONGC as of i m from Mechanical engg bakground and would be appearing for the test in the june 2010. My email id - neeraj_94312@rediffmail.com

TATA,

1813

what is vacuuming in air conditioning and why we do it.

intex,

3 7151

when do we use roller bearing, deep groove ball bearing, angular bearing, sealed bearing, semi sealed bearing, unsealed bearing, anti friction bearing, journal bearing, thrust bearing

1947

sir i have completed diploma in mechanical engineering in 2006 i have one year experiance in maintenance field but i want to know how can we success in maintenance field fastly

1 3700

sir plz tell me what is the basic concept of mechanical maintenance

Bhel, HPCL,

2 8533

how to masure rake or helix angle of drill ?

2367

why are you want to join our company?

TATA,

16 17312

Write the relation between EER , COP , SEER in airconditioning?

MGL,

1 7817

why machine is required

12 13756

How to calibrate Vacuum Gauges if you don't have any standard gauge available with you? please suggest procedures for calibration of Vacuum gauge like pirani gauge ,cold cathod gauge,thermocouple gauge without any standard gauge.

2715

I am a mechanical student.And have cleared the written for NTPC. Please suggest what and how to prepare for the interview.i have got only 2-3 weeks in hand.

1896

Lowest temp in vapour compression cycle in :(Ans:Expansion devices) Contineous welding is type of :(Seam Welding) refrigerant in domestic Refrigerator:(R 134 A) Lowest critical temp of refrigerant:(Freon) Statement....this is .....law:(Avagadros law) Ratio reynold no to prandtl no is:(Pecelent no) if welding is done from right to left then what is the name welding:(Not known) slip gauges are made up of:(alloy steel) clearence between meeting surfaces is due to which gauges: question on rubby laser,rake angle,heat treatment processes,joules law,bell coleman cycle like a/c works on which cycle?

Hitachi,

2 2976

I am a mechanical student.And have cleared the written for NTPC. Please suggest what and how to prepare for the interview.i have got only 2-3 weeks in hand.

IFFCO,

2034

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Un-Answered Questions { Mechanical Engineering }

What is the difference between isotropic material and homogeneous material ?

1126

How is propeller fitted in shaft?

1884

on which basis safety valves are set with particular pressures?

1977

What is vane diagram in centrifugal pump?

2239

what is the reson in a/c system that TPN TRIPPING

1992

what is the difference in Gas Welding and Gas Cutting?? Second Question is for Huge Casting which method is used??

1777

State newton's three laws of motion.

1069

What are the items to inspect after cylinder liner is pulled out

2095

Discuss how to prepare the M/E in the standby condition

2054

What are the modes of heat transfer?

1042

Explain the working of 6 stroke engine?

1062

what is diameter of a suction pipe?

2031

What is meant by direct heat exchanger [or] open heat exchanger?

992

Which reactor uses natural uranium as fuel ?

1000

can any body sand me previous exampapers of jr. engineer (mechanical)

1844

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