Answer / krishna kanth

COP IS Coefficient Of Performance.
It is used as a rating of performance in refrigeration.it
is analogous to efficiency in heat engines. it is the ratio
of Desired effect to net work done.

Answer / cmkashifabrar

The ratio of the amount of work obtained from a machine to he
amount of energy supplied.

what is the purpose of using 3-point starter in dc machines?

2 Answers   Polycab,

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Which are the sheets of metals?

0 Answers  

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What is the temprature used in dearator tank?

0 Answers  

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maintenance of sewage treatment plant

3 Answers  

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Plz tell me how to prepare for RRB exams for section engg for mechanical and suggest me some books for that.

2 Answers   RRB,

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What is difference between centrifugal compressr and screw compressor?

1 Answers  

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what is difference between dry and flooded type chiller?

0 Answers  

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Explain the causes of the exhaust valve leakage.

0 Answers   RRB,

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Dear Friends I want to previous 5-10 years technical and non tech. question paper of section engineer (mechanical)of RRB and also tell me how should I prepare for S.E. and which books will help me for technical,aptitude,resoning.plz send me at bkcs.bkcs@rediffmail.com

0 Answers   RRB,

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How can caliberete the gas volume.

1 Answers   Grasim,

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Define earth lamp?

0 Answers   RRB,

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what kind of carrier you would like to build yourself?

9 Answers   Kirloskar, Timken,

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