Heat Transfer The ratio of momentum diffusivity to thermal diffusivity is the __________ number. Stanton Nusselt Grashoff Prandtl Stanton Nusselt Grashoff Prandtl ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. Decreases Increases May increase or decrease ; depends on the material Remains constant Decreases Increases May increase or decrease ; depends on the material Remains constant ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is a function of Prandtl number and __________ number of fluid in natural convection heat transfer. Reynolds Stantan Grashoff Biot Reynolds Stantan Grashoff Biot ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is 25 34.4 26.8 40.5 25 34.4 26.8 40.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Increasing the liquor level in the evaporator results in the increase in liquor film co-efficient decreased effect of hydrostatic head decreased capacity increased true temperature drop increase in liquor film co-efficient decreased effect of hydrostatic head decreased capacity increased true temperature drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of an ideal solution Increases rapidly with temperature rise Both B and C Decreases rapidly with temperature rise In independent of pressure Increases rapidly with temperature rise Both B and C Decreases rapidly with temperature rise In independent of pressure ANSWER DOWNLOAD EXAMIANS APP
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