Heat Transfer Viscosity of gases __________ with increase in temperature. Increase slowly Remain unaffected Increase very rapidly Decrease slowly Increase slowly Remain unaffected Increase very rapidly Decrease slowly ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For flow over a flat plate, the ratio of thermal boundary layer thickness, 'xt' and hydrodynamic boundary layer thickness 'x' is equal to (where, NPr = Prandtl number) NPr-1 NPr-1/3 NPr NPr1/3 NPr-1 NPr-1/3 NPr NPr1/3 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface. Nucleate Local Saturated Pool Nucleate Local Saturated Pool ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Grashoff number, which is defined as g . β(Ts - T∞) ρ². L³/μ², is proportional to the ratio of buoyancy force to __________ force. Elastic Viscous None of these Inertial Elastic Viscous None of these Inertial ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If heat transfer rate varies with the time, it is termed as Monochromatic radiation None of these Forced convection Steady state conduction Monochromatic radiation None of these Forced convection Steady state conduction ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be 0.35 0.85 0.45 0.55 0.35 0.85 0.45 0.55 ANSWER DOWNLOAD EXAMIANS APP
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