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

Mechanical Engineering Interview Questions

Questions Answers Views Company eMail

What is the seal packing gland for turbine?

RRB,

2031

What is the flow of steam in an impulse turbine?

ABC Inc, RRB, Siemens,

1926

What will happen if you blow the soot in the boiler?

ABC Inc, RRB, Siemens,

1887

State the purpose of air heater?

ABC Inc, RRB, Siemens,

1 3484

How to operate soot blower boiler and economizer?

ABC Inc, RRB, Siemens,

2113

What do you mean by A.CC.?

ABC Inc, RRB, Siemens,

1838

What is the thermal efficiency of a diesel engine?

RRB,

1933

What is a blow down valves?

ABC Inc, RRB, Siemens,

2 4730

Give five parts inside the centrifugal pump and explain each?

RRB,

1 3614

What type of gear is the first reduction gear pinion?

RRB,

2704

List the main parts of Centrifugal pump

RRB,

1 3513

Enumerate the cause of pumps low delivery of water

RRB,

1909

What type of pump is main L.O. pump?

RRB,

1 7437

How to shut down and overhaul the centrifugal pumps?

RRB,

2601

What is the specific gravity or relative density of fuel oil?

RRB,

1998

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Un-Answered Questions { Mechanical Engineering }

What for zinc finds applications ?

964

Who are the leaders among expansion valve manifacturers? what are the recent developements in the expansion valve industry, used in refrigeration abd air-conditioning?

2100

What is meant by counter flow heat exchanger?

1077

How to calculate CFM in Compressure or Blower? EX. I hv Blower with 5hp motor.then how to calculate the CFM?

2313

Maximum combustion temperature in gas turbines is of the order of 1100 to 10°c whereas same is around 00°c in i.c. Engine ? Why ?

1052

"In boiler, what does steam and smoke goes out to the funnel. What reason?"

1932

What is a feed water pump? Dearator feed heater?

2074

what is compression ratio? why its decreased when gear shifted ?

1852

can anybody tell me whta kind of questions i may face in HPCL interview.(shardulbahuguna@yahoo.co.in).plz rpl.

2174

how we calculate the induced air capacity of id fan of a boiler?

2310

what is the reson in a/c system that TPN TRIPPING

1976

Explain the difference between mill and mill-drill?

962

Whether superheated steam can be treated like ideal gas ?

1051

Name the welding tools used in workshop?

1040

Is critical speed temperature dependent or speed dependent or both?

1718

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