Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

IN AC mechanical fuelpump what stands for AC? IN SU mechanical fuelpump what stands for su?

Nissan,

1978

1hp=how much rpm

Fiat, MAHINDRA,

2 5480

how many kinds of bearing?

JSW, ACC,

3 5423




what are the main problems of solar electrical systems? to make quality control on, which parameters that need so?

797

what are the main challenges with solar energy system?

1010

how many psi to one bar?

6 4061

what is the different between mechanical starter vs electrical starter? Solid stage starter? Soft starter?

Infosys,

984

A fan is handling hot air at 285 degC with flow of 411635 m3/hr, power consumed is 1165kW and efficiency is 66%. what will happen to flow, power and efficiency of the fan if a water spray system is introduced to reduce the air temperature up to 200 degC? (also please refer any document regarding this)

716




have a clutchless car or bike clutch for power transmission???

759

gearless vehicle used which type of gearbox and do this work????

JCET,

954

What is Temperature ?

Reddy Labs, Dr Reddys,

4 4084

what is difference between pipe and tube.

Sterlite, Jaiprakash,

4 6108

difference between wps & pqr

MRF, TCS, Spicer India,

2 8907

1. Centrifugal pump is used to drain the coolant from the machine to coolant tank via magnetic separator and paper filter. But more foam is raising in the coolant tank. We need to arrest the foam formation inside tank which is nt desired. How do we correct this issue? (Hardness of the water is at recommended ppm).

Nissan,

2 2539

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 )

Ansaldo,

631


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Un-Answered Questions { Mechanical Engineering }

Define earth lamp?

634


which type feect in generator and turbine in reverse power protection

761


Gegger is used in foundry for the purpose of____________

840


Function of nozzle holden

1450


How to convert GSS duct volume in KG for all guages

1854






What is the steam consumption formula?

2165


In process control loop e/p converter receives 4-20 ma input current from which control block?

463


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

945


If you are scientist to b e and you wish to develop a self-generating power appliances, what would b e the ranking of importance to apply your concept of creating energy using alternator: 1. Washing Machine 2. Motor Water Pump 3. Electric Fan 4. Electric Stove 5. Flat Iron – Which one will b e your foremost and the least at the rank of 1 to 5? Why is that so? Defend your answer.

387


Hindustan petroleum placement papers.please send me.

723


How much pressure on air reservoir?

574


"In refrigeration, why during operations is running low pressure at the suction side?"

2587


how to calculate transformer conservator size

824


What is the function of AUTO SHUT OF Valve in Diesel Engine?

501


What are the advantages of white metal?

710