Heat Transfer With increase in temperature, the thermal conductivity of most liquids Increases Remains same First increases upto a certain temperature and then becomes constant Decreases Increases Remains same First increases upto a certain temperature and then becomes constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. 0.5 to 50 1 to 100 100 to 1000 10 to 100 0.5 to 50 1 to 100 100 to 1000 10 to 100 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In an extended surface heat exchanger, fluid having lower co-efficient Can flow either inside or outside the tubes Flows outside the tubes Flows through the tube Should not be used as it gives very high pressure drop Can flow either inside or outside the tubes Flows outside the tubes Flows through the tube Should not be used as it gives very high pressure drop ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. May increase or decrease ; depends on the material Remains constant Decreases Increases May increase or decrease ; depends on the material Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. Either B or C, depends on the mass of the body 10 >10 Either B or C, depends on the mass of the body 10 >10 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Steam is routed through the tube in case of a __________ evaporator. Horizontal tube Short tube vertical Basket type Long tube vertical Horizontal tube Short tube vertical Basket type Long tube vertical ANSWER DOWNLOAD EXAMIANS APP
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