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= 5hL Ha = hL Ha = 0.8hL Ha = 2hL Ha= 5hL Ha = hL Ha = 0.8hL ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD can't be used as such without a correction factor for the Multipass heat exchanger All of these Baffled heat exchanger Condensation of mixed vapour in a condenser Multipass heat exchanger All of these Baffled heat exchanger Condensation of mixed vapour in a condenser ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of an ideal solution Both B and C Decreases rapidly with temperature rise Increases rapidly with temperature rise In independent of pressure Both B and C Decreases rapidly with temperature rise Increases rapidly with temperature rise In independent of pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a perfectly transparent surface (like gases), the Absorptivity = 0 Reflectivity = 0 Transmissivity = 1 All of these Absorptivity = 0 Reflectivity = 0 Transmissivity = 1 All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is the most widely used heat insulating material for pipelines carrying steam? Fireclay refractory followed by aluminium sheet Cotton followed by aluminium foil Tar dolomite bricks followed by asbestos 85% magnesia cement and glass wool Fireclay refractory followed by aluminium sheet Cotton followed by aluminium foil Tar dolomite bricks followed by asbestos 85% magnesia cement and glass wool ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation occurs on __________ surfaces contaminated cooling clean and dirt free polished smooth clean contaminated cooling clean and dirt free polished smooth clean ANSWER DOWNLOAD EXAMIANS APP
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