Heat Transfer The value of Stefan-Boltazman constant in SI unit is 5.6697 x 10-8W/m².°K4 0.1714 x 10-8W/m².°K4 5.6697 x 10-8kcal/m² . °K4 0.1714 x 10-8kcal/m². °K4 5.6697 x 10-8W/m².°K4 0.1714 x 10-8W/m².°K4 5.6697 x 10-8kcal/m² . °K4 0.1714 x 10-8kcal/m². °K4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nucleate boiling is promoted On rough surfaces In the absence of agitation On polished surfaces None of these On rough surfaces In the absence of agitation On polished surfaces None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a cooling tower, water becomes cool by Vaporisation due to heat loss to air Loosing latent heat Loosing sensible heat Heat transfer to surroundings Vaporisation due to heat loss to air Loosing latent heat Loosing sensible heat Heat transfer to surroundings ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Log mean temperature difference (LMTD) cannot be used, if there exists an unsteady state the heat capacity is not constant and there is a phase change. none of the listed here heat transfer co-efficient over the entire heat exchanger is not constant there exists an unsteady state the heat capacity is not constant and there is a phase change. none of the listed here heat transfer co-efficient over the entire heat exchanger is not constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation is promoted on a/an __________ surface. Smooth Glazed Oily Coated Smooth Glazed Oily Coated 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 = 2hL Ha = hL Ha = 0.8hL Ha= 5hL Ha = 2hL Ha = hL Ha = 0.8hL Ha= 5hL ANSWER DOWNLOAD EXAMIANS APP
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