Heat Transfer When vaporisation takes place directly at the heating surface, it is called vapour binding all of the listed here film boiling nucleate boiling vapour binding all of the listed here film boiling nucleate boiling ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer A BTU/hr.ft.2 °F is equal to 1 kcal/hr. m².°K 4.88 kcal/hr. m.2°C 1 kcal/hr. m²°C None of these 1 kcal/hr. m².°K 4.88 kcal/hr. m.2°C 1 kcal/hr. m²°C None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At what value of Prandtl number, the hydrodynamic and thermal boundary layers of a fluid flowing over a heated plate will be identical? < 1 1 None of these > 1 < 1 1 None of these > 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For small temperature difference, the heat transfer rate as per Newton's law of cooling is proportional to (where, Δt = excess temperature) √Δt Δt³ Δt² Δt √Δt Δt³ Δt² Δt ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. May increase or decrease, depends on the vacuum Remains constant Decreases Increases May increase or decrease, depends on the vacuum Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In case of heat transfer by conduction in a hollow cylinder, __________ mean area is used to calculate the heat transfer rate. Geometric Either A, B or C Arithmetic Logarithmic Geometric Either A, B or C Arithmetic Logarithmic ANSWER DOWNLOAD EXAMIANS APP
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