Darcy law for groundwater flow states that the seepage velocity v (Darcy flux) through a porous medium is:
Choose the correct answer
v = k + i
v = k x i (seepage velocity = hydraulic conductivity x hydraulic gradient)
v = k x i^2
v = i / k
Correct Answer
B. v = k x i (seepage velocity = hydraulic conductivity x hydraulic gradient)
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
Darcy law: q = Q/A = k x i, where k = coefficient of permeability (hydraulic conductivity, m/day), i = hydraulic gradient = dh/dL (dimensionless). Valid for laminar flow (Re < 1-10). Seepage velocity v_s = q/n (actual pore velocity) = ki/n. Transmissivity T = k x b (b = aquifer thickness). Conductivity: gravel (1-100 m/day), sand (0.1-50 m/day), clay (< 0.001 m/day).
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Practice more Civil Engineering questions
This MCQ belongs to AE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.