D.P.D. or suction pressure (S.P.) = O.P. – T. P. Hence D.P.D. for A = 4 bars, B = 0 bars, C = 5 bars, D = 4 bars. We know that direction of movement of water is from lower D.P.D. (S.P.) to higher D.P.D. (S.P.). Thus flow will be from B to A, C, and D.

Question

Accepted Answer

D.P.D. is the driving force for water movement.. D.P.D. (diffusion pressure deficit) is the driving force behind water movement because water moves from lower D.P.D. to higher D.P.D. The other options describe the direction or formula, but only this one states the force responsible for movement.

D.P.D. or suction pressure (S.P.) = O.P. – T. P. Hence D.P.D. for A = 4 bars, B = 0 bars, C = 5 bars, D = 4 bars. We know that direction of movement of water is from lower D.P.D. (S.P.) to higher D.P.D. (S.P.). Thus flow will be from B to A, C, and D.

Solution

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