Heat Transfer Which of the following has the minimum absorptivity? Aluminium foil Coal dust Refractory bricks Iron plates Aluminium foil Coal dust Refractory bricks Iron plates ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Conductance is given by(where, x = thickness, A = heat flow area, K = thermal conductivity.) A/Kx K/Ax KA/x X/KA A/Kx K/Ax KA/x X/KA ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which has the lowest Prandtl number? Water Aqueous solution Lube oil Liquid metal Water Aqueous solution Lube oil Liquid metal 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 Lower maintenance cost Less heating surface None of these More space Lower maintenance cost Less heating surface None of these More space ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the Maximum resistance in the series Minimum resistance presents in the series Sum of all resistances Average of all resistances Maximum resistance in the series Minimum resistance presents in the series Sum of all resistances Average of all resistances ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, the tube side heat transfer co-efficient just at the entrance of the tube is Infinity None of these Zero Same as average heat transfer co-efficient for tube side Infinity None of these Zero Same as average heat transfer co-efficient for tube side ANSWER DOWNLOAD EXAMIANS APP
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