Heat Transfer Rate of heat transfer by vaporisation from pools of water is affected by the Surface tension of water Nature of heating surface and distribution of bubbles All of these Viscosity of water Surface tension of water Nature of heating surface and distribution of bubbles All of these Viscosity of water ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. Increases Remains unchanged May increase or decrease; depends on the gas Decreases Increases Remains unchanged May increase or decrease; depends on the gas Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The separation of liquid droplets from the vapor is done by a/an __________ , in the evaporators. Steam ejector Vacuum pump Entrainment separator Compressor Steam ejector Vacuum pump Entrainment separator Compressor ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A perfect black body is a perfect __________ of radiation none of the listed here absorber emitter Both emitter & absorber none of the listed here absorber emitter Both emitter & absorber ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following parameters of the fluid is not very important, while deciding its route in a shell and tube heat exchanger? Viscosity Density Corrosiveness & fouling characteristics Pressure Viscosity Density Corrosiveness & fouling characteristics Pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thermal radiation emitted by a body is proportional to Tn, where T is its absolute temperature. The value of 'n' is exactly 4 for A black body Polished bodies only All bodies Black painted bodies only A black body Polished bodies only All bodies Black painted bodies only ANSWER DOWNLOAD EXAMIANS APP
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