Heat Transfer For a perfectly transparent surface (like gases), the Absorptivity = 0 All of these Reflectivity = 0 Transmissivity = 1 Absorptivity = 0 All of these Reflectivity = 0 Transmissivity = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the Surrounding temperature Average temperature of the fin Temperature of the fin end Constant temperature equal to that of the base Surrounding temperature Average temperature of the fin Temperature of the fin end Constant temperature equal to that of the base ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer __________ heat exchanger is the most suitable, when the temperature of shell side fluid is much higher than that of tube side. U-tube None of these Three pass, fixed tube sheet Single pass, fixed tube sheet U-tube None of these Three pass, fixed tube sheet Single pass, fixed tube sheet ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Planck's distribution law is valid for __________ bodies white black coloured all of the listed here white black coloured all of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 5 1 0.5 5 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The most conducive surface for dropwise condensation to occur is the __________ surface. Oily Coated Glazed & polished Smooth Oily Coated Glazed & polished Smooth ANSWER DOWNLOAD EXAMIANS APP