Heat Transfer In forced convection, the Nusselt number is a function of Re and Pr Re and Sc Pr and Gr Re and Gr Re and Pr Re and Sc Pr and Gr Re and Gr 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. 20 10 1 30 20 10 1 30 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The ratio of momentum diffusivity to thermal diffusivity is the __________ number. Nusselt Grashoff Stanton Prandtl Nusselt Grashoff Stanton Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In pipe flow, heat is transferred from hot wall to the liquid by Free and forced convection Forced convection and conduction Conduction only Forced convection only Free and forced convection Forced convection and conduction Conduction only Forced convection only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Decrease Increase May increase or decrease; depends on the pressure Remain unchanged Decrease Increase May increase or decrease; depends on the pressure Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum thermal conductivity? Tar Steel Carbon black Nitrogen Tar Steel Carbon black Nitrogen ANSWER DOWNLOAD EXAMIANS APP