Heat Transfer Reynold's analogy states that (where, St = Stanton number f = friction factor) St = f/4 St = 4f St = f/2 St = f1/2 St = f/4 St = 4f St = f/2 St = f1/2 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 Exit fluid temperature = wall temperature Exit fluid temperature < wall temperature Exit-fluid temperature > wall temperature Graetz number > 100 Exit fluid temperature = wall temperature ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer LMTD correction factor which is to be applied for a cross-flow heat exchanger increases with increase in the number of shell passes. Its value for a single pass cross flow heat exchanger is <1 1 >1 Zero <1 1 >1 Zero ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer efficiency leading of energy conservation in a heat exchanger can be achieved by Keeping the heat transfer surface clean Increasing the tube length None of these Enhancing the fluid pumping rate Keeping the heat transfer surface clean Increasing the tube length None of these Enhancing the fluid pumping rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because There is no mist formation Heat transfer co-efficient are high Cost of equipment is lower There is no risk of contamination There is no mist formation Heat transfer co-efficient are high Cost of equipment is lower There is no risk of contamination ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If heat transfer rate varies with the time, it is termed as Monochromatic radiation None of these Steady state conduction Forced convection Monochromatic radiation None of these Steady state conduction Forced convection ANSWER DOWNLOAD EXAMIANS APP
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