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 0.45 0.55 0.35 0.85 0.45 0.55 0.35 0.85 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In SI units, thermal conductivity is expressed in Watt/m.°K Watt/m². °K Watt/m4. °K Watt/m². °K Watt/m.°K Watt/m². °K Watt/m4. °K Watt/m². °K ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thickness of condensate layer in filmwise condensation depends on the Surface configuration All of these Liquid flow rate from the surface Condensation rate Surface configuration All of these Liquid flow rate from the surface Condensation rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Fourier's law, the proportionality constant is called the Thermal diffusivity Heat transfer co-efficient Stefan-Boltzman constant Thermal conductivity Thermal diffusivity Heat transfer co-efficient Stefan-Boltzman constant Thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of backward feed multiple effect evaporators over forward feed units is that Equal heat transfer co-efficients exist in various effects Heat sensitive material can be handled There is no additional cost of pumping Most concentrated liquid is at highest temperature Equal heat transfer co-efficients exist in various effects Heat sensitive material can be handled There is no additional cost of pumping Most concentrated liquid is at highest temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of a vertical tube evaporator, with increase in the liquor level, the __________ is increased. Both A and B Neither A and B Velocity of circulation Liquor-film co-efficient Both A and B Neither A and B Velocity of circulation Liquor-film co-efficient ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS