Heat and Mass Transfer The emissivity for a black body is 1 0.5 0.75 1 0.5 0.75 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The heat is transferred by conduction, convection and radiation in Condensation of steam in condenser Melting of ice Boiler furnaces None of these Condensation of steam in condenser Melting of ice Boiler furnaces None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The total emissivity power is .defined as the total amount of radiation emitted by a black body per unit Area Time Temperature Thickness Area Time Temperature Thickness ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When absorptivity (α) = 1, reflectivity (ρ) = 0 and transmissivity (τ) = 0, then the body is said to be a White body Grey body Opaque body Black body White body Grey body Opaque body Black body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be opaque when X = 0, a + p = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 P = 0, x = 0 and a = 1 X = 0, a + p = 1 P = 0, x = 1 and a = 0 P=1, x = 0 and a = 0 P = 0, x = 0 and a = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The transfer of heat by molecular collision is smallest in None of these Solids Liquids Gases None of these Solids Liquids Gases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS