Heat Transfer The absorptivity of a body is equal to its emissivity none of the listed here under thermal equilibrium for circular bodies at a particular temperature none of the listed here under thermal equilibrium for circular bodies at a particular temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, Both A and B LMTD is greater More surface area is required for a given heat transfer rate Less surface area is required for a given heat transfer rate Both A and B LMTD is greater More surface area is required for a given heat transfer rate Less surface area is required for a given heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In sub-cooled boiling, Very large vapour space is necessary Temperature of the heating surface is more than the boiling point of the liquid Bubbles from heating surface are absorbed by the mass of the liquid Temperature of the heating surface is less than the boiling point of the liquid Very large vapour space is necessary Temperature of the heating surface is more than the boiling point of the liquid Bubbles from heating surface are absorbed by the mass of the liquid Temperature of the heating surface is less than the boiling point of the liquid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in temperature, the thermal conductivity of most liquids Remains same Increases First increases upto a certain temperature and then becomes constant Decreases Remains same Increases First increases upto a certain temperature and then becomes constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The number of kg vaporised per kg of steam fed to the evaporator is defined as Rate of evaporation Rate of vaporisation Economy Capacity Rate of evaporation Rate of vaporisation Economy Capacity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The average heat transfer co-efficient over the entire length of the plate (ha) and the local heat transfer co-efficient (hL), in case of heat transfer over a flat plate in lminar zone is related as Ha = 0.8hL Ha = 2hL Ha= 5hL Ha = hL Ha = 0.8hL Ha = 2hL Ha= 5hL Ha = hL ANSWER DOWNLOAD EXAMIANS APP
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