Civil Engineering MCQAE Level Civil Engineering
The Laplace equation governing 2D steady seepage is:
Soil MechanicsSeepage AnalysisHARD
Choose the correct answer
A
∂u/∂t = Cv(∂²u/∂z²)
B
∂²h/∂x² + ∂²h/∂z² = 0
C
∂h/∂t = k∇²h
D
q = kiA
Correct Answer
B. ∂²h/∂x² + ∂²h/∂z² = 0
Why is this the answer?
Laplace equation for 2D seepage (isotropic soil): ∂²h/∂x² + ∂²h/∂z² = 0. For anisotropic: kx∂²h/∂x² + kz∂²h/∂z² = 0, which transforms to Laplace by coordinate scaling.
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This MCQ belongs to Magic Mock Test Series — WBPSC AE Civil (Preliminary). Full tests include timed attempts, rank comparison and subject-wise analysis.