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)?

1450

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 2688

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

4 2873




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.

752

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,

722

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 4341

how water evaporated in sea

OGDCL,

805

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

804




how water get evaporated in cooling tower

4 3275

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

3 2653

How do we calculate the CFT?

1 2693

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

UltraTech, BPCL Bharat Petroleum,

9 12395

difference between pipe and tube

16 13465

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 1429

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

RRB,

777


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Un-Answered Questions { Mechanical Engineering }

How to calculate motor bearing life - cycle (life time) (SKF bearing) how determine the capacity of refrigeration system? how we use condenser coils, compressor, capillarity,compressor how determine the capacity of refrigeration system? how we use condenser coils, compressor, capillarity,compressor what is rigging

1396


An employ has after increment has Gross Salary 22000 rupees per month. Earlier he was covered in ESI . now should we deduct ESI from his salary or not.

208


i am preparing for vsp management trainee technical 2010.can any one send me modelpapers of preliminary written test.

718


What is cri pumps & mechanical sael

2728


For a high pressure/ high temperature multistage pump (Boiler Feed Water Pump), what is the average life of mechanical seal? Does life of DE and NDE differ, if differ, how much? Why?

806






What parameters to be reported when we send lubricating oil for shore analysis?

708


How to detect staring valve leaks?

750


how can i replace annular plats in tanks

675


What is meant by hybrid vehicles?

732


Is there significant affect on the output of modern gas turbines due to low frequency.

818


how to calculate duct fittings surface area ?

2879


Where can you find thermometers in diesel engines?

695


What are the causes of positive and negative propeller slip?

1626


Can metal vapour converted to solid metal

475


What are the procedures in paralleling D/G?

806