Heat and Mass Transfer Unit of thermal conductivity in S.I. units is J/m °K sec Option (B) and (C) above J/m² sec W/m °K J/m °K sec Option (B) and (C) above J/m² sec W/m °K ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Heat transfer by radiation mainly depends upon Kind and extent of its surface Its temperature All of these Nature of the body Kind and extent of its surface Its temperature All of these Nature of the body ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer If the temperature of a solid surface changes form 27°C to 627°C, then its emissive power changes in the ratio of 9 3 81 270 9 3 81 270 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Emissivity of a white polished body in comparison to a black body is Lower Same Depends upon the shape of body Higher Lower Same Depends upon the shape of body Higher ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Sensible heat factor is given by (where S.H. = Sensible heat, and L.H. = Latent heat) (S.H + L.H) /S.H (L.H - S.H)/S.H S.H/(L.H - S.H) S.H/(S.H + L.H) (S.H + L.H) /S.H (L.H - S.H)/S.H S.H/(L.H - S.H) S.H/(S.H + L.H) ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The critical thickness of insulation for a sphere is 2k/h₀ k/h₀ h₀/2k h₀/k 2k/h₀ k/h₀ h₀/2k h₀/k ANSWER DOWNLOAD EXAMIANS APP
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