The ratio of Emissive to absorption power of heat by a body is equal to heat emitted by a perfect black body. Who said the statement

3 Answers   HAL, ONGC,

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How do we differentiate oxy & acetylene?

1 Answers   TATA,

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How tonnage can be controlled in PLC base hydraulic press

1 Answers  

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Explain how pipe flanges are electrically insulated?

0 Answers  

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Define convection.

0 Answers  

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Which turbine, high speed or low speed is efficient to generate 30MW power? or High RPM machine is more efficient or low RPM?

1 Answers   HMT,

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What is atmospheric pressure?

2 Answers  

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what is the mean of b.tech?

6 Answers   Toyota,

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What is compound gage

0 Answers   RRB,

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min work in a compresor is possible when the value of adiabatic index n is equal to a).75 b)1 c)1.27 d)1.35 e)2 what is adiabatic index.

1 Answers  

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How the thickness of thermal boundary layer and thickness of hydrodynamic boundary layer related ?

0 Answers  

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If the unit of pressure is Pa or N/m2, why the blood pressure or the lung pressure is messured in "mm of Hg" or "centimeters of water" respectively ?

3 Answers  

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