Heat Transfer With increase in temperature, the thermal conductivity of steel Decreases Remains unchanged Increases Increases exponentially Decreases Remains unchanged Increases Increases exponentially ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Indirect contact heat exchangers are preferred over direct contact heat exchangers, because There is no mist formation There is no risk of contamination Cost of equipment is lower Heat transfer co-efficient are high There is no mist formation There is no risk of contamination Cost of equipment is lower Heat transfer co-efficient are high ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer 1 BTU/hr.ft.°F is equal to __________ kcal/hr. m.°C. 4.88 None of these 1.49 1 4.88 None of these 1.49 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For the same heat load and mass flow rate in the tube side of a shell and tube heat exchanger, one may use multipass on the tube side, because it None of these Decreases the outlet temperature of cooling medium Decreases the pressure drop Increases the overall heat transfer coefficient None of these Decreases the outlet temperature of cooling medium Decreases the pressure drop Increases the overall heat transfer coefficient ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer If heat transfer rate varies with the time, it is termed as Steady state conduction Monochromatic radiation Forced convection None of these Steady state conduction Monochromatic radiation Forced convection None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Fourier number (defined as a.t/L²) is used in the analysis of problem involving heat transfer by Transient conduction Steady state conduction Forced convection Natural convection Transient conduction Steady state conduction Forced convection Natural convection ANSWER DOWNLOAD EXAMIANS APP
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