Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

WHAT ARE EARTH MOVING M/CS? WHAT IS BATCHING PLANT? WHAT IS HYDRAULIC JUMP? WHAT IS TIPPER (EARTH MOVING M/C)?

2347

DRAW REFRIGERATION CYCLE? WHICH REFRIGERANT USED IN IDUSTRY & HOME? EOT CRANES SPEED ? WHAT IS KOM ? TELLL ME ABOUT YOU? WHAT WAS YOUR FAVORITE SUBJECT?

3 4536

which kind of force act when the piston slides inside the cylinder?and how to calculate that force or stress theoritically.

4 5149

what are the parameters are selected while manufacturing a single cylinder block?what are the different kind of test is conducted on it so that it can withstand with all those condition which required to run the engine efficiently.which force is act when piston slide inside the cylinder.

1594

what are the parameters are selected while manufacturing a single cylinder block?what are the different kind of test is conducted on it so that it can withstand with all those condition which required to run the engine efficiently.which force is act when piston slide inside the cylinder.

Emco,

1699

types of stainless steel.why does this called stainless.what is passivation related to SS? What is sensitisation in stainless? Examples of diffrent type of steel e.g. austenatic,martensite,ferritic etc. 304,303,316. How to get rid of carbide formation in SS and stablization in SS.(347 etc.)Different type of heat treatments. Iron carbon diagram. Nelson chart with respect to corosion. Diffrent type of corosion and causes. Carbon equvalent number. Welding related questions.(requirement of post and pre heating in welding). welding of SS. If you have pre experience in maintenance then Material and welding related questions will be there. Then various types equipment in plant (a) static (b) rotatic in pumps and compressor,turbines funda of balance drum and balance disc, balancing line. Impulse wheel, wheel chamber pressure and its effect on turbone health if this increases. Thermal expansion of turbines and with respect to how foundation bolting are designed. Fixing of lower casing before dismantling. Most important shaft alignment and balancing of rotating equipment,classification of static and rotatic equpment used in process plants. Materials for diffrent services as refinery plants fertilizer plants, cement plants, sulphur plants, crude oil with higher sulphur services, then third important thing is codes, standards and recommended practices of diffrent organisation like ASTM,ASME,API,TEMA,BIS,IS,ISO,NPFA,OISD etc. diffrent type of work permit systems fire and safety point of view.

1 5478

how water evaporated in sea

OGDCL,

1530

If saturated temp of water is 99.8degc at atmospheric pressure,then how the water of sea is evaporated at normal temp

1841

how water get evaporated in cooling tower

4 5776

if in centrifugal pump suction,discharge and impeller size constant and motor rpm increase.what is the effect on motor ampere?

3 4626

How do we calculate the CFT?

1 3952

All industrial (power plant, sugar. Cement etc...) chimneys are circular in shape rather than any other shapes... Y..?

BPCL Bharat Petroleum, UltraTech,

9 17749

difference between pipe and tube

16 20461

Respected Sir, I am preparing for J.E of RRB Chennai.Please send me all RRB Chennai solved paper in the year of 2004 to till date. My ID is musini_p@rediffmail.com Thanking you sir, Anand

1 2483

Dear sir, I have applied section engineer post at rrb Chennai.Please send me the previous technical question papers and answers

RRB,

1647


Post New Mechanical Engineering Questions

Un-Answered Questions { Mechanical Engineering }

which type of que can be asked in this company?

1572


What is a feasibility study?

707


Why cavitation will occur in centrifugal pump and not in displacement pump?

699


Name the four most important components of a Freon refrigeration system.

1543


why the head portion of the screw jack (which carries the load when not rotating) is made hollow?

1801






What is mean carry over of Aux. Boiler?

1620


IF RPM OF PTO OF TRACTOR IS 540,torque at pto is 21kg/cm sq.& WE NEED IT TO 1800 RPM ,THROUGH GEAR ONLY FOR THAT WHAT WOULD BE ETHE GEAR STRUCTURE( I.E.NO TEETH OF BOTH GEAR ) IN ORDER TO GET 1800 RPM OUTPUT.

1903


What are the 3 parts in indicator diagram?

1506


how the efficency of a coupling is calculated?

2253


what is the significance of line of action in gear?

1631


What is the history on the invention of paper?

643


ongc recruitment sample paper for asst.technician technical

11567


Which is the welding process you have carried out in workshop?

683


Do you work for many hours each day?

721


What is the name given to portion of thermal energy to be necessarily rejected to environment ?

698