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 Less heating surface Lower maintenance cost None of these More space Less heating surface Lower maintenance cost None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature = wall temperature Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 Exit fluid temperature = wall temperature Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 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 Condensation of mixed vapour in a condenser Baffled heat exchanger Multipass heat exchanger All of these Condensation of mixed vapour in a condenser Baffled heat exchanger ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the nature of material of body none of the listed here temperature of the body only wavelength of monochromatic radiation nature of material of body none of the listed here temperature of the body only wavelength of monochromatic radiation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With increase in porosity, the thermal conductivity of a solid substance Increases May increase or decrease; depends on the solid Remains unchanged Decreases Increases May increase or decrease; depends on the solid Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number (for forced convection heat transfer) is a function of the __________ number. Both Reynolds & Prandtl Reynolds None of the listed here Prandtl Both Reynolds & Prandtl Reynolds None of the listed here Prandtl ANSWER DOWNLOAD EXAMIANS APP
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