Heat Transfer In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material By direct contact of hot flue gas with air None of these Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material By direct contact of hot flue gas with air 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? Triangular pitch Diagonal square pitch Square pitch None of these Triangular pitch Diagonal square pitch Square pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Choose the correct equation. Nu = (Re) (Pr) (St) Nu = (Re)(Pr) Nu = (Re) (Pr) (Gz) Nu = (Pr)(St) Nu = (Re) (Pr) (St) Nu = (Re)(Pr) Nu = (Re) (Pr) (Gz) Nu = (Pr)(St) ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer jH factor for heat transfer depends upon the __________ number. Nusselt Biot Prandtl Reynolds Nusselt Biot Prandtl Reynolds ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Boiling point elevation of an ideal solution Both B and C Decreases rapidly with temperature rise Increases rapidly with temperature rise In independent of pressure Both B and C Decreases rapidly with temperature rise Increases rapidly with temperature rise In independent of pressure ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a liquid in laminar flow through a very long tube, when the exit fluid temperature approaches the wall temperature, the equation to be used is Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 Nu = 2Gz0.5 Nu = Gz Nu = Gz Nu = 0.023 Re0.8 . Pr0.4 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS