Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? 1/2 √(A₁ . A₂) √(A₁ . A₂) √(A₁ + A₂) 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ . A₂) √(A₁ + A₂) 2 √(A₁ . A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Fruit juice (a heat sensitive material) can be concentrated in a __________ evaporator. High pressure Falling film Long tube None of these High pressure Falling film Long tube None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A black body does not __________ radiation. Reflect Absorb or emit Refract Both B & C Reflect Absorb or emit Refract Both B & C ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe, where the wall heat flux is constant, is Dependent on NRe only 120.36 4.36 2.36 Dependent on NRe only 120.36 4.36 2.36 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nucleate boiling is promoted None of these On rough surfaces On polished surfaces In the absence of agitation None of these On rough surfaces On polished surfaces In the absence of agitation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Dropwise condensation occurs on __________ surfaces contaminated cooling polished smooth clean clean and dirt free contaminated cooling polished smooth clean clean and dirt free ANSWER DOWNLOAD EXAMIANS APP
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