Hydrology and Water Resources Management MCQs 25 Score: 0 Attempted: 0/25 Subscribe 1. : The science that deals with the occurrence, movement, and distribution of water on Earth is called: (A) Geology (B) Hydrology (C) Oceanography (D) Meteorology 2. : The hydrologic cycle is primarily driven by: (A) Wind energy (B) Solar radiation (C) Earth’s gravity only (D) Ocean currents 3. : The process of water movement through soil and porous rocks is known as: (A) Infiltration (B) Precipitation (C) Evaporation (D) Transpiration 4. : Which of the following is a non-consumptive use of water? (A) Irrigation (B) Drinking water supply (C) Hydropower generation (D) Industrial cooling 5. : The largest freshwater reservoir on Earth is: (A) Groundwater (B) Rivers (C) Lakes (D) Glaciers and ice caps 6. : The main source of groundwater recharge is: (A) Ocean currents (B) Rainfall and infiltration (C) River dams (D) Snowstorms 7. : Which parameter measures the ability of soil to transmit water? (A) Porosity (B) Permeability (C) Specific yield (D) Capillarity 8. : Aquifers that are confined between two impermeable layers are called: (A) Unconfined aquifers (B) Confined aquifers (C) Perched aquifers (D) Artesian aquifers 9. : The zone of saturation in groundwater is also known as: (A) Vadose zone (B) Water table zone (C) Capillary zone (D) Unsaturated zone 10. : The process of converting saline water into freshwater is known as: (A) Sedimentation (B) Filtration (C) Desalination (D) Evapotranspiration 11. : Runoff is the part of precipitation that: (A) Infiltrates into the soil (B) Returns to the atmosphere (C) Flows over land into rivers and streams (D) Becomes groundwater only 12. : Which method is commonly used to measure streamflow in rivers? (A) Pitot tube method (B) Weirs and flumes (C) Barometer method (D) Hygrometer method 13. : Flood frequency analysis is usually carried out using: (A) Normal distribution (B) Gumbel distribution (C) Binomial distribution (D) Poisson distribution 14. : The ability of an aquifer to store water is represented by: (A) Porosity (B) Transmissivity (C) Storage coefficient (D) Hydraulic gradient 15. : Drought is best described as: (A) Prolonged period of excessive rainfall (B) Prolonged deficiency of precipitation (C) Sudden flooding event (D) Reduction in river velocity 16. : Watershed management involves: (A) Conservation of soil and water resources in a drainage basin (B) Construction of roads in hilly regions (C) Designing of underground sewers (D) Mapping of weather patterns only 17. : Which of the following is a major impact of over-pumping groundwater? (A) Increased recharge (B) Land subsidence (C) Water table rise (D) Enhanced water quality 18. : The residence time of groundwater is generally: (A) Few days (B) Few months (C) Years to thousands of years (D) Less than one hour 19. : In hydrology, unit hydrograph represents: (A) Response of a watershed to a unit depth of effective rainfall (B) Groundwater depletion rate (C) Rate of evapotranspiration (D) Drought duration 20. : The main objective of water resources management is: (A) To maximize water use without considering sustainability (B) To balance water demand with sustainable supply (C) To promote only groundwater extraction (D) To eliminate hydropower projects 21. : Which of the following is NOT a waterborne disease? (A) Cholera (B) Typhoid (C) Malaria (D) Dysentery 22. : Artificial recharge of groundwater can be achieved by: (A) Dams and reservoirs (B) Recharge wells and percolation tanks (C) Cloud seeding (D) Both (A) and (B) 23. : Which river basin is the largest in the world? (A) Amazon Basin (B) Nile Basin (C) Mississippi Basin (D) Ganga Basin 24. : The ratio of actual evapotranspiration to potential evapotranspiration is known as: (A) Runoff coefficient (B) Evapotranspiration index (C) Aridity index (D) Crop coefficient 25. : Integrated Water Resources Management (IWRM) is based on the principle of: (A) Considering only surface water (B) Coordinated management of water, land, and related resources (C) Exclusive use of groundwater (D) Isolating water management from ecosystems