Heat Transfer With increase in temperature, the total emissivity of conductors Decreases linearly Decreases Increases Remains same Decreases linearly Decreases Increases Remains same 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 not in physical contact with each other From one part of a body to the another part of the same body Between two bodies in physical contact with each other Both B & C Between two bodies not in physical contact with each other From one part of a body to the another part of the same body Between two bodies in physical contact with each other Both B & C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Stefen's block body radiation law can also be derived from __________ law. Fourier's Planck's None of these Kirchoffs Fourier's Planck's None of these Kirchoffs ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a body is equal to its emissivity 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 none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is Nu = 0.023 Re0.8 . Pr0.4 Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 Nu = 2Gz0.5 Nu = Gz Nu = Gz ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation energy is emitted by all the substances, which are above 0°C 100°C 0°K none of the listed here 0°C 100°C 0°K none of the listed here ANSWER DOWNLOAD EXAMIANS APP
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