Heat Transfer Presence of a non-condensing gas in a condensing vapour decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient None of the listed here decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy d²T/dZ² < 0 d²T/dZ² > 0 dT/dZ = 0 d²T/dZ² = 0 d²T/dZ² < 0 d²T/dZ² > 0 dT/dZ = 0 d²T/dZ² = 0 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Trap is used to remove __________ from steam pipe lines. Steam None of these Non-condensables Condensate Steam None of these Non-condensables Condensate ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats P and R P and Q P and S R and S P and R P and Q P and S R and S ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 88.66 3.66 1.66 Dependent on NRe only 88.66 3.66 1.66 Dependent on NRe only ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer co-efficient is 3k/l. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade? 43.75 48.25 81.25 35.5 43.75 48.25 81.25 35.5 ANSWER DOWNLOAD EXAMIANS APP
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