Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? √(A₁ + A₂) 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) √(A₁ + A₂) 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fourier's law of heat conduction applies to __________ surfaces. Non-isothermal Both A and B Isothermal Neither A and B Non-isothermal Both A and B Isothermal Neither A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a heat exchanger, one transfer unit means None of these A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr Both A and B None of these A section of the exchanger in which change in temperature of one stream equals the average driving force in the section The size of the exchanger in which heat transfer rate is 1 kcal/hr Both A and B ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nucleate boiling is promoted In the absence of agitation On rough surfaces None of these On polished surfaces In the absence of agitation On rough surfaces None of these On polished surfaces ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m².K. At steady state, the temperature of the right face in °C is 71.2 77.2 63.8 48.7 71.2 77.2 63.8 48.7 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is Sherwood number Nusselt number Schmidt number Stanton number Sherwood number Nusselt number Schmidt number Stanton number ANSWER DOWNLOAD EXAMIANS APP
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