Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

if C.R increases then detonation will increase or decrease

4 2271

what is cyclon vibration effect in turbine

NTPC,

756

Why should we hire you over the others waiting to be interviewed?

2002




what is counter weights. Why the ship cranes are not having counter weights irrespect of industrial & civil construction cranes are having counter weights.

1 2495

what is combined cycle & where it is used

Reliance, NPTI,

2 7160

Cox chart is used in ....Distillation, evaporation, drying

2961

How can an internal combustion engine be used for refrigeration?

3 2640

The higest value of thermal conductivity is expected for a.) Solid ice b.) Melting ice c.) Water d.) Boiling water Give the thermal conductivity value for each.

BEL,

8 15940




what is different between impact and impulse force ?

1 2046

What is screw,centrifugal and rotary type compressors,how it works and what is principle .

1 5076

What is function of steam strainer?

2 5930

WHAT IS EASY & PERFECT METHOD TO JOIN CONVEYOR BELTSEXPLAIN IN DETAIL

705

On 22nd December, which of the following places has the largest day and shortest night ?

2 2314

DURING STEAM BLOWING OF PIPE LINE, A BLUISH COLOR CONICAL PATTERN IS OBSERVED AT THE END OF PIPE. WHATS THE CONCEPT BEHIND IT?

1 3585

whose unit is Psi ?

5 3324


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Un-Answered Questions { Mechanical Engineering }

How to calculate heat load .For example 10 TR .Then how we will find load (we want rh(relatavie humidity) sir)

360


Why preferred Production than Drilling?

1278


pls any one send me the last 5 years rrb QP - hari.devarajan@gmail.com

1167


If you have a valve with an applied pressure, how do you determine the stress to the closed and open valve?

625


diffrence between fmea, pfmea,

1114






Wasco Interview 1-the type of transducer that convert mechanical movement into a voltage 2-pump 2500 psi and 100 MG select it 3-modes of heat transfer 4-the difference bet PSIA and PSIG 5-the function of relief valve and no return valve (check valve ) 6-types of bearing general catogires 7-function of bearing 8-compressor surge 9-pump cavitation 10-define critical speed 11-compression ratio decease volumetric ratio ........... 12-using inter-cooling in multi stage compressors to ....... 13-using cascade system in refrigerator function ? 14-define performance and efficiency .

757


What are the causes of main engine Turbo Charger blower side dirty?

785


What is the circulation of I.O. pump of diesel engine?

734


wap to insert an element in array at a particular location

781


If any machinery or trnsmission needs periodic and regular lubrication what is the best method to give?

121


From where compressor recive power in automobile?

1700


1) Any pipe line working fluid may water / steam on it one manual isolation valve suppose one side of valve 6 kg/ cm^2 pressure (i.e. up stream) and other side is “ 0” kg/ cm^2 pressure(i.e. down stream) . So how much Tourqe required for opening the valve in terms of Newton force wheather normal man can open this valve. (for reference pipe nominal bore is 100 NB )

631


What is the cause of cylindrical liner overheating?

782


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

865


how to calculate cooling water require to condense x amount of vapor in a condenser.

652