Heat Transfer Water always boils when its Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Temperature reaches 100° C Saturated vapour pressure equals the external pressure on its surface Vapour pressure equals 76 cm of Hg Saturated vapour pressure is less than the atmospheric pressure Temperature reaches 100° C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is best heated with steam in a heat exchanger of shell and tube type double pipe type with fin on steam side plate type double pipe type with fin on air side shell and tube type double pipe type with fin on steam side plate type double pipe type with fin on air side ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by conduction results due to the transfer of free electrons, kinetic energy & vibrational energy from one molecule to another. Conduction heat transfer can not take place Between two bodies in physical contact with each other Both B & C From one part of a body to the another part of the same body Between two bodies not in physical contact with each other Between two bodies in physical contact with each other Both B & C From one part of a body to the another part of the same body Between two bodies not in physical contact with each other ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the absorptivity of a black body? 0.78 1 0.95 0.78 1 0.95 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when KA>2 kB KA < 0.5kB CPA > CPB CPA < CPB KA>2 kB KA < 0.5kB CPA > CPB CPA < CPB ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the most suitable for the concentration of foamy & frothy liquors? Long tube vertical evaporator None of these Agitated film evaporator Open pan evaporator Long tube vertical evaporator None of these Agitated film evaporator Open pan evaporator ANSWER DOWNLOAD EXAMIANS APP
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