Heat Transfer For a perfectly transparent surface (like gases), the Absorptivity = 0 Reflectivity = 0 All of these Transmissivity = 1 Absorptivity = 0 Reflectivity = 0 All of these Transmissivity = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 1 and ? 0 and 1 0 and 0.5 1 and 0 1 and ? 0 and 1 0 and 0.5 1 and 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Use of transverse baffles in a shell and tube heat exchanger is done to increase the All of these Flow velocity Rate of heat transfer Turbulence of shell side fluid All of these Flow velocity Rate of heat transfer Turbulence of shell side fluid ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. Remain unchanged Decrease Increase May increase or decrease; depends on the pressure Remain unchanged Decrease Increase May increase or decrease; depends on the pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is concerned with both heat and mass transfer ? Kutateladze number Lewis relationship Nusselt number Froude number Kutateladze number Lewis relationship Nusselt number Froude number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vent pipes are provided in a condenser to Facilitate easy cleaning of tubes Remove non-condensable gases None of these Purge the condenser Facilitate easy cleaning of tubes Remove non-condensable gases None of these Purge the condenser ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS