Heat and Mass Transfer Heat transfer by radiation mainly depends upon All of these Kind and extent of its surface Its temperature Nature of the body All of these Kind and extent of its surface Its temperature Nature of the body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Moisture would find its way into insulation by vapour pressure unless it is prevented by A vapour seal High vapour pressure Less thermal conductivity insulator High thickness of insulation A vapour seal High vapour pressure Less thermal conductivity insulator High thickness of insulation ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Which of the following has least value of conductivity? Air Water Glass Plastic Air Water Glass Plastic ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity of a substance is Inversely proportional to density of substance All of these Directly proportional to the thermal conductivity Inversely proportional to specific heat Inversely proportional to density of substance All of these Directly proportional to the thermal conductivity Inversely proportional to specific heat ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer When α is absorptivity, ρ is reflectivity and τ is transmissivity, then for a diathermanous body, α = 0, ρ = 1 and τ = 0 α + ρ = 1 and τ = 0 α = 1, ρ = 0 and τ = 0 α = 0, ρ = 0 and τ = 1 α = 0, ρ = 1 and τ = 0 α + ρ = 1 and τ = 0 α = 1, ρ = 0 and τ = 0 α = 0, ρ = 0 and τ = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity is a Function of temperature All of these Physical property of a substance Dimensionless parameter Function of temperature All of these Physical property of a substance Dimensionless parameter ANSWER DOWNLOAD EXAMIANS APP
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