Mechanical Engineering Interview Questions
Questions Answers Views Company eMail

How we make bend & diffuser from any pipe (it's equation)& how we mark in pipe....

724

tell me about special purpose machines

TATA, Infotech,

5 5941

please send me samples of tech. & aptitude tests

Jindal,

814




difference between strength&hardness

Ford,

7 5778

what is the cause of erratic misfire in DG

1 1770

What is the significance of pressure angle in gears?

HCL, TATA,

3 5597

in which condition turbine bearing vibration high

4 2829

A simple problem involing in hoops stress. For sphere: M= [3/2]*p*V*[density of pressure vessel material/Maximum working stress it can tolerate] For Thin walled pressure walls: Hoops stress or stress in the radial direction =p*r/2t ?

Bhel, JPMorgan Chase,

1051




Water is available at 10m height. What is the pressure available ?

TVS, Bhel,

6 6998

composition of cast iron fc-500,fc-550,& fc-260 which is use in sheet metal industries as a piller set

2168

what is aim?

TATA, Atlas Honda,

8 4233

what is coordinate measuring machine, how it work,how accuracy of machine is defined also give me question and answer related to cmm vindudh@yahoo.co.in

2 7422

sir iam doing diploma in mech.engg i need a details of jcb 3dx model plz sent me detal in my email id- rahulchugh33320@gmail.com

836

why we are maintain boiler ph 9.0,not maintain 10.0 or 11?

2 3673

how we convert HP into the KW?

4 3736


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Un-Answered Questions { Mechanical Engineering }

what is the minimum velocity of cooling water for maximum efficiency of condensor.

1001


why we use kg/cm2 instead of kg/m2 as a unit of pressure. As we know kg is a MKS unit and cm is a CGS unit. So why we use combination of both(kg/cm2)while describing the pressure.

6879


What causes damage to impellers?

671


What causes crankcase explosion?

974


My parents green card holder and sister is citizen so... . I m applying for spring 2010 for F1 visa... how can i convince visa officers for visa?

622






Why PWHT IS NOT DONE TO STAINLESS STEEL MATERIAL?

4952


Hi! Greetings of the day. Can somebody tell me about as built duct sheet area calculation method. As we know that for this purpose A = (W+H)*2*L. But I have query about multiplication factors for elbows, tappers, offsets etc if there is any. Also refer the papers if available. Please revert. Thanks in advance.

610


please briefly explain the Discharge process and Formula of Centrifugal Pump

756


Find the greatest and smallest number among the given 5 numbers without using ‘>’ or ‘<’ operators

1055


There is a back compression in Engine, what does it mean

5345


What is the maximum P-max for a cylinder in M/E.

822


What type welding electrode is used to weld chrome?

992


Enumerate some trouble of fuel injection valve

784


There is a block placed in between air and water. water is at 100 deg cel and air at 50. 1) Draw temperature profile. 2) Why is it curve in air and water?

115


we use parallel flow heat exchanger to coo oil of 1000 EP viscosity,oftenly tubes may damage during cleaning etc what is proper way to clean cooler? How impurities decreased or vanished during working or in less teme job performed?

662