Heat and Mass Transfer Emissivity of a white polished body in comparison to a black body is Depends upon the shape of body Higher Lower Same Depends upon the shape of body Higher Lower Same ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The amount of radiation mainly depends on Nature of body All of these Temperature of body Type of surface of body Nature of body All of these Temperature of body Type of surface of body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical thickness of insulation for a sphere is k/h₀ 2k/h₀ h₀/2k h₀/k k/h₀ 2k/h₀ h₀/2k h₀/k ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Wien’s law states that the wave length corresponding to ________ is proportional to the absolute temperature. Minimum energy Both (A) and (B) Maximum energy None of these Minimum energy Both (A) and (B) Maximum energy None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Upto the critical radius of insulation, Convective heat loss will be less than conductive heat loss Heat flux will decrease Added insulation will decrease heat loss Added insulation will increase heat loss Convective heat loss will be less than conductive heat loss Heat flux will decrease Added insulation will decrease heat loss Added insulation will increase heat loss ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer According to Dalton's law of partial pressures, (where pb = Barometric pressure, pa = Partial pressure of dry air, and pv = Partial pressure of water vapour) Pb = pa - pv Pb = pa/pv Pb = pa + pv Pb = pa × pv Pb = pa - pv Pb = pa/pv Pb = pa + pv Pb = pa × pv ANSWER DOWNLOAD EXAMIANS APP
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