Heat Transfer For a perfectly transparent surface (like gases), the Transmissivity = 1 Absorptivity = 0 All of these Reflectivity = 0 Transmissivity = 1 Absorptivity = 0 All of these Reflectivity = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The film thickness for laminar film condensation on vertical surface __________ from top to bottom. Cummulatively increases Remains constant And the surface conductance increase Cummulatively decreases Cummulatively increases Remains constant And the surface conductance increase Cummulatively decreases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The purpose of floating head in a heat exchanger is to Decrease the pressure drop Avoid buckling of tubes Provide support for tubes Facilitate its lengthening, if needed Decrease the pressure drop Avoid buckling of tubes Provide support for tubes Facilitate its lengthening, if needed ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A cube, sphere & a thin circular plate (all having same mass and made of same material) are all heated to 300°C and allowed to cool in natural air. Which one will cool the slowest ? Sphere All of these Cube Plate Sphere All of these Cube Plate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Crystallisation of solids from a homogeneous solution is a/an __________ process. Mildly endothermic Highly endothermic Exothermic None of these Mildly endothermic Highly endothermic Exothermic None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Viscosity of gases __________ with increase in temperature. Increase slowly Increase very rapidly Remain unaffected Decrease slowly Increase slowly Increase very rapidly Remain unaffected Decrease slowly ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS