Heat Transfer jH factor for heat transfer depends upon the __________ number. Biot Reynolds Nusselt Prandtl Biot Reynolds Nusselt Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. Decreases Increases Remains unchanged May increase or decrease; depends on the gas Decreases Increases Remains unchanged May increase or decrease; depends on the gas ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Air is best heated with steam in a heat exchanger of shell and tube type double pipe type with fin on steam side plate type double pipe type with fin on air side shell and tube type double pipe type with fin on steam side plate type double pipe type with fin on air side ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ? Plate Cube Sphere All of these Plate Cube Sphere All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The non-dimensional temperature gradient in a liquid at the wall of a pipe is the Prandtl number Nusselt number Schmidt number Heat flux Prandtl number Nusselt number Schmidt number Heat flux ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A concentric double pipe heat exchanger as compared to the shell and tube heat exchanger for the same heat load requires More space None of these Lower maintenance cost Less heating surface More space None of these Lower maintenance cost Less heating surface ANSWER DOWNLOAD EXAMIANS APP
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