Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

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

2 3382

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

3 2659

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,

667




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

intex,

3 3865

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

733

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 1969

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

HPCL, Bhel,

2 6009

how to masure rake or helix angle of drill ?

1228




why are you want to join our company?

TATA,

16 7712

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

MGL,

1 5791

why machine is required

12 5734

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.

1380

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.

683

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,

1023

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,

725


Post New Mechanical Engineering Questions






Un-Answered Questions { Mechanical Engineering }

give me an example of time when u something u tried to accomplish and failed.

676


WHAT IS THE DIFFERENCE B/W LUBE OIL 20 W 40 AND 20 W 40 OIL.

768


Greetings This question is about hydraulics and I request an expert to answer it. A simple hydraulic machine is made up of two heads, a larger one with a larger force inside a wider pipe and a smaller one with a smaller force inside a smaller pipe in width as in the second picture on this link: http://science.howstuffworks.com/hydraulic1.htm The question is this: what happens if the smaller head and the smaller force doesn’t exist but the smaller pipe is high enough to take all the liquid? For example the larger head is 1.00 sqr metre and can go down 1.00m under a weight of 100.00kg. The cross sectional area of the smaller pipe is 0.001 sqr metre. Now when the larger head goes down 1.00m, how high the liquid from the wider pipe can go into the smaller pipe of the cross sectional area of 0.001 sqr metre? Regards

796


hi please send the exam modle paper for mechanical engineering. Iam attending for vizag steel plant MT

719


what should be the correct duration of slow firing of the coal based and biomass boiler?

671






CAN ANY ONE SEND ME THE RRB SECTION ENG. Q-PAPER .. MY MAIL ID :suresh25siva@yahoo.com, suresh.sivakumar@tcs.com

863


What is the purpose of increasing the pressure on the F.O. system of the engine?

920


how to calculate cg of transformer

736


bag filter ,monitooringof exection/ co -ordination of site activities format

652


Which material amoung EN8 and EN24 should be selected for the designing of the shafts of rotary kilns

304


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

769


HOW TO PREPARE FOR HPCL WRITTEN EXAM?

2435


Given a cutaway isometric view of the steam turbine.

1345


What is method to calculate the noise level at any point of duct if duct dimensions and air flow is known?

734


what is advantage and disadvantage of forward curve and backward curve blade of an id fan impeller and FD fan impeller??

178