Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

What causes friction in the cylinder?

RRB,

715

What causes damage to impellers?

RRB,

746

"In a four-stroke diesel engine, In what engine exhaust valve will open?"

RRB,

565




How is propeller fitted in shaft?

RRB,

624

What valves are fitted in a four-stroke diesel engine?

RRB,

682

What are the automatic tripping devices of diesel generator?

RRB,

637

What is the purpose of thrust bearing?

RRB,

1 1856

"What is fuel oil viscosity, specific gravity?"

RRB,

1 1679




What are the causes of low compression in the main engine?

RRB,

626

What do you measure in the banana and mountain diagram?

RRB,

648

What is a brake horse power?

RRB,

670

What are the requirements of a good fuel?

RRB,

802

What is the purpose of a setting tank?

RRB,

735

What is the purpose of a turning gear?

RRB,

1 2197

What is the purpose of starting air?

RRB,

737


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Un-Answered Questions { Mechanical Engineering }

Explain how to measure crank web deflection?

1104


I want to know flow rate,max pressure drop,heat load,design pressure,test presurre,temp both inlet and outlet of coldside and hot side of 1,2,3,5,5.5,7.5,10,12,15 tons

653


what is the required force to bend 2.5 MS sheet in 90 degrees and what is the formula to calculate the same?

1429


Explain the principle of Suizer Fuel oil injection pump

871


What is diffrence between star & delta connnection in practical situation in submersible pump?

692






Dear Friends I want to previous 5-10 years technical and non tech. question paper of section engineer (mechanical)of RRB and also tell me how should I prepare for S.E. and which books will help me for technical,aptitude,resoning.plz send me at bkcs.bkcs@rediffmail.com

633


Gegger is used in foundry for the purpose of____________

885


Which pipe should I use SAW, ERW or seamless if I have the following constraints I have to transport methane gas Size is 8” Corrosive environment Sulphide is present Also tell the cost comparison

674


Explain how the lubricating oil circulates in a diesel engine.

598


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

1290


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 )

667


What are the types of pump can be found in the engine room

615


project,planning, equioment erraction &maint format. project,planning&scheduling,bar chart

1347


What are steam turbine parts usually come into damage?

723


why the people sitting in the train doesn't get shock whilethat man getting shock from top of the train?

924