Mechanical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Mechanical Engineering Interview Questions

Questions Answers Views Company eMail

pls any one send me the last 5 years rrb QP - hari.devarajan@gmail.com

2784

how much efficiency loss will took place in a steam turbine due to low vacuum

1 6111

asked about the power transimmisions and types of power drives and about milling different process types and differnce between straddle milling and gang milling

HAL,

2011

what is bearing? how many types of bearing

7 15951

Why Air Conditioner capacity measured in Ton. Like 1.5ton

Jindal, TATA,

1 6112

WHAT IS THE DIFFERENCE BETWEEN RATED SPEED AND ECONOMIC SPEED?

BARC, L&T,

3 18470

Suppose a steel bar of cross sectional area A is subjected to load P at one end and 2P at the other end ,what will be the induced stress in the bar?

BARC,

5 11179

what is the diffrence between Torque and Power ( layman Idea)?

BARC,

2870

why petrol engines have more power than diesel engines of same capacity?

BARC, TCS,

27 33163

even though LPG is economical than petrol,why we are not promoting LPG usage?

BARC,

9 15110

what is unit Ps ?

BARC,

7 13736

why we express the unit of torque in Nm.even though it can be expressed as Joule ( J )?

BARC,

10 16586

why we cant measure absolute entropy directly,but the change we can?

2346

Can anybody please provide any link to calculate force rquired to bend a metal sheet into pipe? or describe how is it calculated?

2 4420

what are engines that use carburetor and that use inductor ? difference between them

6 11444

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Un-Answered Questions { Mechanical Engineering }

What are the advantages and disadvantages of screw harmatic chiller respect to centrifugaal chiller machine?

2609

Define refrigerant.

1166

Name four important properties of a good refrigerant.

1059

What are the important operational performance parameters in design of fuel firing equipment ?

1405

Explain the advantages of powder metallurgy?

1184

What is the common source of leak in stern tube

1949

what is electronically operated pneumatic valves? give one example

2114

current rating of a 3 phase dg set is 20 amp, but what will be the per phase current for single phase supply?

2227

What's the difference between absolute vibration & relevant vibration regarding Boiler Feedwater Pump ?

1860

What is blower? Partlist of blower.

1799

7. What are the different types of conventional and non conventional machining processes

2323

If I can absorb 9,000 lux of sunlight in the bottom of a pool what will the temp rise be per hour, per square foot of absorbing material, per gallon be? Temp of pool deck 115 degrees, water temp 75 degrees, 120,000 lux on the pool deck

2130

What is the materials of jib?

1208

HOW MUCH HARDNESS OF CAST IRON?

2074

why the wear of back tyre takes place more rapidly than front?

1980

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