Heat Transfer For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature) Δt² √Δt Δt³ Δt Δt² √Δt Δt³ Δt 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 4.36 2.36 120.36 Dependent on NRe only 4.36 2.36 120.36 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In counter flow compared to parallel flow, Less surface area is required for a given heat transfer rate Both A and B LMTD is greater More surface area is required for a given heat transfer rate Less surface area is required for a given heat transfer rate Both A and B LMTD is greater More surface area is required for a given heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it Increases the overall heat transfer coefficient Decreases the outlet temperature of cooling medium Decreases the pressure drop None of these Increases the overall heat transfer coefficient Decreases the outlet temperature of cooling medium Decreases the pressure drop None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a multipass shell and tube heat exchanger, the LMTD correction factor is always > 1 1 Between 1 & 2 < 1 > 1 1 Between 1 & 2 < 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Electromagnetic radiations propagate in vacuum with a velocity of __________ metre/second. 3 x l08 3 x l012 3 x l010 3 x l05 3 x l08 3 x l012 3 x l010 3 x l05 ANSWER DOWNLOAD EXAMIANS APP
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