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 None of these By direct contact of hot flue gas with air Through a metallic wall By heating an intermediate material (like chequor bricks) and then heating the air from this hot material None of these By direct contact of hot flue gas with air ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The thickness of condensate layer in filmwise condensation depends on the Liquid flow rate from the surface Condensation rate Surface configuration All of these Liquid flow rate from the surface Condensation rate Surface configuration All of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Water is normally used as a coolant in the heat exchange equipments mainly because ofits High fluidity Low density Abundance & high heat capacity Low viscosity High fluidity Low density Abundance & high heat capacity Low viscosity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film ) (ΔT)2 ΔT None of the listed here (ΔT)1/4 (ΔT)2 ΔT None of the listed here (ΔT)1/4 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Removal of __________ heat is involved in the condensation of a vapor under saturated conditions. Both B & C Latent Super Sensible Both B & C Latent Super Sensible ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is not concerned with the heat transfer? Stanton number Schmidt number Brinkman number Peclet number Stanton number Schmidt number Brinkman number Peclet number ANSWER DOWNLOAD EXAMIANS APP
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