1.What is the term for the portion of rainfall that is actually utilized by plants to fulfill their water requirements?
2.What is the name of the structure built within a channel, featuring a narrow throat and an elevated floor at the bottom, used to measure flow discharge?
3.For a rectangular channel, the flow discharge reaches its maximum when the hydraulic mean depth (m) is equal to which of the following?
4.The buoyant force acting on an object submerged in a liquid is equal to the __________ of the liquid that the object displaces.
5.What is the specific weight of water at standard atmospheric pressure (760 mm Hg), a temperature of 4ºC, and sea level conditions?
6.Which of the following materials is not subjected to torsional forces?
7.Which method is used to calculate frictional head loss in open channel flow?
8.What components make up the total energy line (T.E.L) in fluid mechanics?
9.Which of the following represents the correct unit for kinematic viscosity?
10.What term describes the ratio between the variation in outlet discharge and the corresponding change in water surface level at the distributary's normal depth?
11.At what central angle is an arch dam considered to be most cost-effective?
12.What is the name of the structure constructed adjacent to weirs and barrages to help fish migrate upstream or downstream?
13.The sum of net irrigation and field irrigation losses is known as the requirement for which type of irrigation?
14.What is the name of the irrigation technique where a boundary is created around each tree to hold water when irrigated?
15.Which substance is commonly added to soil with a high alkaline content to make it suitable for cultivation?
16.What is the name of the unit hydrograph when its time duration is nearly zero?
17.What is the name of the graph that displays river discharge over a period of time?
18.What term describes the combined process of water evaporation from soil and plant surfaces along with water loss through plant transpiration?
19.Where is the centre of pressure located on a submerged plane area to maintain equilibrium?
20.When is the useful lifespan of a reservoir typically deemed to have ended in terms of reduction in its gross storage capacity?