Heat Transfer Prandtl and Reynolds analogy are same, when Prandtl number is > 2 1.5 0.5 1 > 2 1.5 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which has the lowest Prandtl number? Aqueous solution Liquid metal Lube oil Water Aqueous solution Liquid metal Lube oil Water 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
Heat Transfer In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient Increases May increase or decrease; depends on the feed Decreases Is not affected Increases May increase or decrease; depends on the feed Decreases Is not affected ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally Increases exponentially Remains unchanged Decreases Increases Increases exponentially Remains unchanged Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Among liquids, water has a comparatively high value of thermal conductivity, due to its Partial ionisation High viscosity Dense structure Low density Partial ionisation High viscosity Dense structure Low density ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS