Civil Engineering MCQJE Level Civil Engineering
For an incompressible fluid flowing through a pipe, the continuity equation states:
Fluid MechanicsFluid MechanicsEASY
Choose the correct answer
A
A1 + V1 = A2 + V2
B
A1V1 = A2V2 (volumetric flow rate constant)
C
V1/A1 = V2/A2
D
P1A1 = P2A2
Correct Answer
B. A1V1 = A2V2 (volumetric flow rate constant)
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Continuity: A1V1 = A2V2 (conservation of mass for incompressible flow). Where A = cross-sectional area, V = average velocity. If pipe narrows, velocity increases. For compressible flow: ρ1A1V1 = ρ2A2V2. This is the foundational flow equation.
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