Heat Transfer A diathermaneous substance __________ the thermal radiation completely. None of these Absorbs Reflects Transmits None of these Absorbs Reflects Transmits ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is 77.2 48.7 71.2 63.8 77.2 48.7 71.2 63.8 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Shell side pressure drop in a shell and tube heat exchanger does not depend upon the Baffle spacing & shell diameter None of these Viscosity, density & mass velocity of shell side fluid Tube diameter & pitch Baffle spacing & shell diameter None of these Viscosity, density & mass velocity of shell side fluid Tube diameter & pitch ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electro-magnetic spectrum range, which is important for radiation varies from __________ microns. 0.5 to 50 100 to 1000 10 to 100 1 to 100 0.5 to 50 100 to 1000 10 to 100 1 to 100 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, one transfer unit means None of these The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section Both A and B None of these The size of the exchanger in which heat transfer rate is 1 kcal/hr A section of the exchanger in which change in temperature of one stream equals the average driving force in the section Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Radiation heat transfer rates does not depend upon the type of absorbing surface none of the listed here distance between the heat source and the object receiving the heat surface area and temperature of the heat source type of absorbing surface none of the listed here distance between the heat source and the object receiving the heat surface area and temperature of the heat source ANSWER DOWNLOAD EXAMIANS APP
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