Heat Transfer Viscosity of gases __________ with increase in temperature. Remain unaffected Increase very rapidly Decrease slowly Increase slowly Remain unaffected Increase very rapidly Decrease slowly Increase slowly ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Thermal conductivity of a gas at low density, __________ with increase in temperature. May increase or decrease; depends on the gas Decreases Remains unchanged Increases May increase or decrease; depends on the gas Decreases Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Sieder-Tate correlation for heat transfer in turbulent flow in pipe gives Nu α Re0.8, where, Nu is the Nusselt number and Re is the Reynolds number for the flow. Assuming that this relation is valid, the heat transfer co-efficient varies with the pipe diameter (D) as (D)-1.8 (D)1.8 (D)0.2 (D)-0.2 (D)-1.8 (D)1.8 (D)0.2 (D)-0.2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) f/4 f 2f f/2 f/4 f 2f f/2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer rate described by Fourier's law will decrease, if the __________ increases. Thickness Thermal conductivity Heat transfer area Temperature difference Thickness Thermal conductivity Heat transfer area Temperature difference ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS