1.What term describes the amount of mass contained in a unit volume of a liquid measured under standard temperature and pressure conditions?
2.What is the term for covering the embankment surface with stone boulders to shield it from wave erosion?
3.What is the term for groundwater that flows downward through the unsaturated zone above the water table?
4.What term describes the rate at which a well produces water per unit of drawdown, typically measured in gallons or liters per minute?
5.What is the term used for the characteristic of a saturated soil that allows significant amounts of water to pass through it?
6.Which soil characteristic refers to the total volume of void spaces within the soil that can hold water?
7.What percentage of the Earth's total water is fresh, with the majority sourced from rainfall?
8.What is the approximate total volume of water on Earth, which accounts for nearly 70% of its surface?
9.At what percentage of available water does the wilting point occur, beyond which plants can no longer extract water and begin to wilt?
10.Approximately 15% of the soil moisture found above the plant root zone is generally inaccessible to plants. This type of water is known as ____________?
11.Which shape of the irrigation plot leads to higher water application efficiency?
12.What is the term for the flow depth where the energy reaches its maximum value?
13.What is the typical allowable velocity of water flowing inside a tunnel lined with concrete?
14.What is the term for the flow where water particles spin around their own center of mass as they move along the flow direction?
15.Why does mercury fail to wet glass surfaces?
16.Water is descending from a waterfall onto a turbine's blades with a force of 100 N per second. If the waterfall's height is 100 meters, what is the power output delivered to the turbine?
17.Which instrument is used to measure the velocity of gases?
18.What does the hydraulic gradient line (H.G.L) indicate in fluid mechanics?
19.In a completely filled pipe, where do the fluid particles reach their highest velocity?
20.What is the term for an earthen embankment constructed on one or both sides of a river, set back from the banks, to help control flooding?