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Mechanical Engineering Interview Questions
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plz give sample question paper of hpcl thank you


In a Waste heat recovery boiler feed control valve is after the economiser where as in auxilary boiler feed control valve is given before the economiser.why?

2 5242

why desuperheater tubes are bend in shape


why we have to know the specific frequency of any equipment? does anybody know about specific frequency ?


3 5884

if u have to give support in 1 km long bridge,where u will give it & how many?


10 11518

What is difference between sand blasting and grit blasting ? What is its purpose and how is it done ?

2 11730

All Rector or Exchanger have spherical/hemispherical end Why?


2 6436

What is Dry Bulb Temperature and Wet Bulb temperature?

3 8519

What is thermodynamics?

3 4189

Write down the epression for air standard efficiency of diesel cycle?

3 6128

Explain Why Nozzles are made convergent and Divergent?

8 18022

What do you mean gy "Clausius inequality"?

3 5001

Define Overall Heat transfer coefficient.

2 18571

What is the principle of operation of simple jet propulsion system?

3 8774

Whe a system is said to be

2 2346

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Un-Answered Questions { Mechanical Engineering }

What will happen if head of a selected pump is not utilized in a closed loop water circuit? Flow will increase or decrease or remain same?


Define cotter joint?


What type of pump is lubricator pump?


what is threaded joints ,where present usage ?


My vendor filled liquid oxygen in our 11000 liter capacity tank. He filled from 1400 MMWC up to 3200 MMWC. I followed the provided conversion table and found that we had been supplied 1800 MMWC liquid which is going to yield 2815 cubic meter. On the other hand, the vendor claims that he supplied as follows:- 5236 cub mtr(3200 MMWC)-2124 cub mtr(1400MMWC) = 3112 cub mtr. I fear that he wants to charge 297 cubic meters extra. He claims that my method was wrong and his was right. He says that this disparity is because of the conical shape of the base of the flask. I will be thankful if somebody can explain me the truth.


Define weber number and its significance?


what is the stanton curve?


What is the different between brass and bronze ?


what is cswip?


Mention some of the major contributions made by you in your present and previous jobs:


what is the trignometry of lifting tools using the wire rope ? any formula for trignometry ?


What is the coefficient expansion of transformer oil?


What is the materials of jib and cotter joints?


What is pneumatic system?


How are the pneumatic system and the hydraulic system similar?