Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

Is copper tube withstand under hard water say as 500 TDS.And is it cleanable by solfamric acid or by tube brushing

Cadila,

1744

What is the difference between bolt and screw

3 5087

What will happened if two gear boxes in parallel are working with different motor speeds?

Lloyds Steel,

1 3281

1st law of thermodynamics

IFFCO,

9 12258

which is the good mainteanance?

4 5168

WHY WE USE DC IN MIG WELDING

FMI, TATA,

3 5177

WHY THE WELDING JOB IS MAKE NEGATIVE IN MIG WELDING

JSW, TATA,

2 5916

how much 1kn of 1hp

ABB,

2 4220

how many types of sensors used in a air handling unit

Google,

1690

When crude oil heated Which Hydro carbon comes first?

Essar, GM General Motors,

1 6229

The fatigue life of a part can be improved by ?

Essar,

2 18276

Poisons ratio is higher in (rubber/steel/wood)

Essar,

5 11552

Which mechanism is used to hold the gear ?

3 5293

about basic questions ofpiping engg

1323

what is the peripheral velocity of two mating gears?

Hero Honda,

1 9536


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Un-Answered Questions { Mechanical Engineering }

What is allotrope ? In what forms of cubic pattern, iron exists ?

532


calculate the expantion of steel bar 2,5 long if its temperature rises from 20 degrees to 250 degrees and its co effient of expantion is 0,000011 mm degrees

301


what is the reason of hat and work is not conserved energy?

1322


Explain the applications of ferrite material?

554


Explain the importance of thermodynamics laws in mechanical engineering?

546






Can anyone tell the exact hot water generator load calculation for central airconditioning. pls mail me at azeemk30@gmail.com

1452


describe a type when u anticipated potential problems and developed preventive measure

1324


Which is first stress or strain?

532


should cutouts made in main header of metal ducting be deducted from duct measurement.

1684


What is function (in details) room sensor and tube or coil sensor in HVAC system?

1048


Why is the suction pipe of vapor compression and refrigeration system insulated?

552


draw neat sketch of pirani gauge with wheatstone bridge circuit to measure output. discuss its construction working princple

2527


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

1471


Question for mech.engineer in dmrc

1346


what is inlet gas pressure of ge 9 fa gas turbine ?

1589