Heat Transfer For turbulent flow in a tube, the heat transfer co-efficient is obtained from the Dittus-Boelter correlation. If the tube diameter is halved and the flow rate is doubled, then the heat transfer co-efficient will change by a factor of 6.1 37 1.74 1 6.1 37 1.74 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The advantage of backward feed multiple effect evaporators over forward feed units is that Heat sensitive material can be handled There is no additional cost of pumping Equal heat transfer co-efficients exist in various effects Most concentrated liquid is at highest temperature Heat sensitive material can be handled There is no additional cost of pumping Equal heat transfer co-efficients exist in various effects Most concentrated liquid is at highest temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a backward feed multiple effect evaporator Feed flows from low pressure to high pressure Feed is introduced in the first effect None of these No pumps are required between successive effects Feed flows from low pressure to high pressure Feed is introduced in the first effect None of these No pumps are required between successive effects ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Intermittant tube cleaning is possible to be done in case of a __________ evaporator. Horizontal tube None of these Basket type Calendria Horizontal tube None of these Basket type Calendria 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 √Δt Δt³ Δt² Δt √Δt Δt³ Δt² ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Vent pipes are provided in a condenser to None of these Purge the condenser Facilitate easy cleaning of tubes Remove non-condensable gases None of these Purge the condenser Facilitate easy cleaning of tubes Remove non-condensable gases ANSWER DOWNLOAD EXAMIANS APP
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