Heat Transfer Absorptivity and refletivity of a perfect black body are respectively 0 and 1 1 and ? 1 and 0 0 and 0.5 0 and 1 1 and ? 1 and 0 0 and 0.5 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Nusselt number is the ratio of the temperature gradient at the wall to Temperature difference Heat flux That across the entire pipe None of these Temperature difference Heat flux That across the entire pipe None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following is correct ? Rate = Resistance/Driving force Rate = Driving force x Resistance Driving force = Rate x Resistance Resistance = Driving force x Rate Rate = Resistance/Driving force Rate = Driving force x Resistance Driving force = Rate x Resistance Resistance = Driving force x Rate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat transfer by __________ may not necessarily require the presence of a medium coduction radiation natural convection none of the listed here coduction radiation natural convection none of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The inside heat transfer co-efficient in case of turbulent flow of liquid in the tube side in a 1-2 shell and tube heat exchanger is increased by __________ times, when the number of tube passes is increased to 8. 20.8 20.4 40.4 40.8 20.8 20.4 40.4 40.8 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In a shell and tube heat exchanger, square pitch compared to triangular pitch Gives a lower shell side pressure drop Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter None of these Gives a lower shell side pressure drop Gives a higher shell side pressure drop Can pack more surface area into a shell of given diameter None of these ANSWER DOWNLOAD EXAMIANS APP
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