Question

For Following Multiple Choice All Correct Answers Which Applied To Each Question.

9. A flow net:

• is a diagram of equipotentials and streamlines.
• depicts steady groundwater flow in two dimensions.
• may be used to quantify groundwater flow.

10. When the hydraulic conductivity varies from point to point within an aquifer, the aquifer is said to be:

• homogeneous
• heterogeneous
• isotropic
• anisotropic

11. The Laplace equation:

• is a mathematical statement of the law of conservation of mass combined with Darcy’s law.
• may be solved to produce a groundwater flow net.
• describes unsteady or transient groundwater flow.
• is commonly solved using computers.

12. Which of the following rules must flow nets obey at boundaries?

• Streamlines cannot cross an impermeable or “no-flow” boundary.
• Streamlines must be perpendicular to a constant-head boundary.
• Equipotentials must be perpendicular to an impermeable or “no-flow” boundary.
• Equipotentials cannot cross constant-head boundaries

Answer 1

Solution:

9.

All the options are right.

. A flow net:

• is a diagram of equipotentials and streamlines.
• depicts steady groundwater flow in two dimensions through aquifiers.
• may be used to quantify groundwater flow
• Flow net is a graphical construction used to calculate groundwater through soil.