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Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

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

2 4006

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

3 3373

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,

1035

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

intex,

3 4939

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

1122

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 2442

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

Bhel, HPCL,

2 6699

how to masure rake or helix angle of drill ?

1651

why are you want to join our company?

TATA,

16 10122

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

MGL,

1 6448

why machine is required

12 7996

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.

1781

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.

1058

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,

1399

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,

1101


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Un-Answered Questions { Mechanical Engineering }

What is vane diagram in centrifugal pump?

1300


different between general arc welding & aluminium welding?

1218


What is a feed water pump? Dearator feed heater?

1117


There is a back compression in Engine, what does it mean

5712


alignment formulae for any two shafts for shim correction

1173






how to calculate bearing pre-load?

2173


what are the different types of screws?

219


Where can you find the feed check valve and feed stop valve and give the purpose of it?

1044


The capacity of a domestic refrigerator is in the range of ?

213


Difference between turbocharging and supercharging in diesel engines?

660


pl. send me jr.engg.model question for rrb malda.

1229


distance between the power generation and the distribution to the application is fixed or vary

1015


What happens when too much cylinder oil is injected in the working cylinder?

1386


I am a post dip. in machine maintenance , 2004 passed out and i am persuing my graduateship in industrial engg. and i would like to know, whether i am applicable to do any certification cource . And i would like to know, whether i am eligiable to do ann master degree since i have working experience of more than 8 Years in Larsen & Toubro,

1000


Purpose of lubricator in a large diesel engine.

1139