Heat and Mass Transfer Thermal conductivity of water at 20°C is of the order of 0.51 0.23 0.42 0.1 0.51 0.23 0.42 0.1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Metals are good conductors of heat because Their atoms are relatively far apart They contain free electrons Their atoms collide frequently They have high density Their atoms are relatively far apart They contain free electrons Their atoms collide frequently They have high density ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Wien's law, the wavelength corresponding to maximum energy is proportion to Absolute temperature (T) I² T F Absolute temperature (T) I² T F ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of energy emission from unit surface area through unit solid angle, along a normal to the surface, is known as Intensity of radiation Transmissivity Emissivity Reflectivity Intensity of radiation Transmissivity Emissivity Reflectivity ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Emissivity of a white polished body in comparison to a black body is Higher Depends upon the shape of body Lower Same Higher Depends upon the shape of body Lower Same ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The most commonly used method for the design of duct size is the Static regains method Equal friction method Velocity reduction method Dual or double method Static regains method Equal friction method Velocity reduction method Dual or double method ANSWER DOWNLOAD EXAMIANS APP
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