Heat Transfer For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of 1 1.74 6.1 37 1 1.74 6.1 37 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Maximum water velocity in tubes of a 1-2 shell and tube heat exchanger may be around __________ metres/second. 1 20 10 30 1 20 10 30 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl and Reynold's analogies are identical for Prandtl number value of 5 1 0.5 5 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. 100 to 1000 10 to 100 0.5 to 50 1 to 100 100 to 1000 10 to 100 0.5 to 50 1 to 100 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Economy of a multiple effect evaporator depends upon the Both A and B Rate of heat transfer Heat balance consideration Neither A nor B Both A and B Rate of heat transfer Heat balance consideration Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Prandtl number is the ratio of Momentum diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity Momentum diffusivity to thermal diffusivity Momentum diffusivity to mass diffusivity Thermal diffusivity to momentum diffusivity Thermal diffusivity to mass diffusivity Momentum diffusivity to thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
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