Heat and Mass Transfer Heat conducted through per unit area and unit thick face per unit time when temperature difference between opposite faces is unity, is called Thermal resistance Thermal coefficient Thermal conductivity Temperature gradient Thermal resistance Thermal coefficient Thermal conductivity Temperature gradient ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The use of heat exchangers is made in Condensers and evaporators in refrigeration and air conditioning units Radiators in automobile All of these Condensers and boilers in steam plants Condensers and evaporators in refrigeration and air conditioning units Radiators in automobile All of these Condensers and boilers in steam plants ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The rate of heat flow through a body is Q = [kA (T₁ - T₂)]/x. The term x/kA is known as Thermal conductivity None of these Thermal coefficient Thermal resistance Thermal conductivity None of these Thermal coefficient Thermal resistance ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The automobile radiator is a heat exchanger of Cross flow type Parallel flow type Regenerator type Counter flow type Cross flow type Parallel flow type Regenerator type Counter flow type ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The value of the wavelength for maximum emissive power is given by Planck's law Stefan's law Fourier's law Wien’s law Planck's law Stefan's law Fourier's law Wien’s law ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Thermal diffusivity of a substance is given by (where h = Thermal diffusivity, ρ = Density of substance, S = Specific heat, and k = Thermal conductivity) h = ρS/k h = k/ ρS h = S/ρk h = kρ/S h = ρS/k h = k/ ρS h = S/ρk h = kρ/S ANSWER DOWNLOAD EXAMIANS APP
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