Heat Transfer Heat transfer in the laminar sublayer in case of a liquid flowing through a pipe, is mostly by Convection Eddies current Conduction None of these Convection Eddies current Conduction None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the Heat flux at the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe None of these Heat flux at the wall to that across the entire pipe Temperature difference to the temperature gradient at the wall Temperature gradient of the wall to that across the entire pipe None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which is the best tube arrangement (in a shell and tube heat exchanger) if the fluids are clean and non-fouling? Diagonal square pitch Square pitch Triangular pitch None of these Diagonal square pitch Square pitch Triangular pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer What is the geometric mean of two heat transfer areas A₁ and A₂ ? 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ + A₂) √(A₁ . A₂) 2 √(A₁ . A₂) 1/2 √(A₁ . A₂) √(A₁ + A₂) √(A₁ . A₂) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature < wall temperature Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 Exit fluid temperature < wall temperature Exit fluid temperature = wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat flow by conduction for a cylindrical body with an internal heat source, the nature of temperature distribution is Linear Hyperbolic Parabolic None of these Linear Hyperbolic Parabolic None of these ANSWER DOWNLOAD EXAMIANS APP
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