Heat and Mass Transfer Conduction is a process of heat transfer From a hot body to a cold body, in a straight line, without affecting the intervening medium From one particle of the body to another without the actual motion of the particles None of these From one particle of the body to another by the actual motion of the heated particles From a hot body to a cold body, in a straight line, without affecting the intervening medium From one particle of the body to another without the actual motion of the particles None of these From one particle of the body to another by the actual motion of the heated particles ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The ratio of surface convection resistance to the internal conduction resistance is known as Grashoff number Biot number Stanton number Prandtl number Grashoff number Biot number Stanton number Prandtl number 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 Opaque body Grey body Black body White body Opaque body Grey body Black body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat is closely related with Entropy Temperature Liquids Energy Entropy Temperature Liquids Energy ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The heat of sun reaches to us according to Convection Radiation Conduction None of these Convection Radiation Conduction None of these ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Two long parallel surfaces each of emissivity 0.7 are maintained at different temperatures and accordingly have radiation heat exchange between them. It is desired to reduce 75% of the radiant heat transfer by inserting thin parallel shields of emissivity 1 on both sides. The number of shields should be Two Four Three One Two Four Three One ANSWER DOWNLOAD EXAMIANS APP
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