Well Hydraulics MCQs 25 Score: 0 Attempted: 0/25 Subscribe 1. : The study of groundwater flow towards wells is called: (A) Hydrogeology (B) Well hydraulics (C) Irrigation engineering (D) Soil physics 2. : The equation for steady radial flow in a confined aquifer is given by: (A) DarcyâWeisbach equation (B) Thiemâs equation (C) Dupuitâs equation (D) Manningâs equation 3. : The governing equation for steady radial flow in an unconfined aquifer is: (A) Thiemâs equation (unconfined form) (B) Bernoulliâs equation (C) Hooghoudtâs equation (D) HazenâWilliams equation 4. : In Dupuitâs assumption, it is considered that: (A) Flow lines are vertical (B) Flow lines are horizontal and velocity is proportional to slope of water table (C) Flow is turbulent (D) Head loss is negligible 5. : The drawdown in a pumping well is defined as: (A) Difference between static water level and pumping water level (B) Depth of aquifer (C) Radius of influence (D) Cone of depression radius 6. : The region around a pumping well affected by lowering of water table is called: (A) Recharge basin (B) Cone of depression (C) Piezometric surface (D) Perched zone 7. : The discharge of a confined aquifer well is directly proportional to: (A) Transmissibility (B) Logarithm of radius of influence (C) Difference in piezometric heads (D) All of the above 8. : A well fully penetrating a confined aquifer gives: (A) Maximum discharge (B) Minimum discharge (C) No discharge (D) Same discharge as partially penetrating well 9. : The transmissivity of an aquifer is given by: (A) K Ă b (B) K / b (C) K Ă i (D) b / K 10. : The storage coefficient of a confined aquifer is typically in the range: (A) 0.1 â 0.3 (B) 10âťÂł â 10âťâľ (C) 0.5 â 0.8 (D) 0.05 â 0.1 11. : The safe yield of a well means: (A) Maximum water extraction without causing long-term decline (B) Maximum pump capacity (C) Total storage of aquifer (D) Daily requirement of crops 12. : In a pumping test, the radius of influence increases with: (A) Increase in pumping rate (B) Higher transmissibility of aquifer (C) Longer pumping duration (D) All of the above 13. : The specific capacity of a well is defined as: (A) Discharge per unit drawdown (B) Discharge per unit head (C) Head loss per unit discharge (D) Storage per unit decline 14. : A partially penetrating well in an aquifer causes: (A) More drawdown for same discharge compared to full penetration (B) Less drawdown for same discharge (C) Equal drawdown as fully penetrating well (D) No drawdown 15. : The unsteady radial flow equation in confined aquifers is given by: (A) Thiemâs equation (B) Theisâ equation (C) Dupuitâs equation (D) Bernoulliâs equation 16. : The Jacob straight-line method is used for: (A) Estimating transmissibility and storage coefficient from pumping test data (B) Calculating drawdown in an unconfined aquifer (C) Designing canals (D) Measuring soil porosity 17. : A tubewell that taps both confined and unconfined aquifers is called: (A) Gravity well (B) Strainer well (C) Collector well (D) Combination well 18. : The efficiency of a well is defined as ratio of: (A) Theoretical drawdown to actual drawdown (B) Actual drawdown to theoretical drawdown (C) Specific yield to porosity (D) Storage to transmissibility 19. : Well losses are mainly due to: (A) Entrance resistance and turbulence (B) Friction in aquifer pores (C) Pump efficiency (D) Soil porosity only 20. : The discharge from a well is maximum when located at: (A) Center of aquifer (B) Upstream side of recharge boundary (C) Near a recharge boundary (river or canal) (D) Near an impermeable boundary 21. : The critical velocity in well hydraulics is: (A) Velocity at which laminar flow changes to turbulent in porous medium (B) Maximum velocity at pump impeller (C) Seepage velocity through aquifer (D) Velocity in confined aquifer only 22. : Step-drawdown tests are conducted to evaluate: (A) Aquifer properties and well losses separately (B) Only transmissibility (C) Safe yield of aquifer (D) Soil permeability 23. : The cone of depression becomes wider if: (A) Pumping rate is high and aquifer is less permeable (B) Pumping rate is low (C) Aquifer transmissibility is very high (D) Aquifer is artesian 24. : The storage coefficient of an unconfined aquifer is approximately equal to: (A) Specific retention (B) Specific yield (C) Porosity (D) Transmissibility 25. : The main disadvantage of over-pumping wells in coastal aquifers is: (A) Waterlogging (B) Saltwater intrusion (C) Improved recharge (D) Cone of depression reduction Agricultural Engineering MCQsđšÂ 1. Soil and Water Conservation Engineering MCQsSoil Conservation Techniques MCQsWatershed Management MCQsErosion Control Structures MCQsGully and Ravine Control MCQsđšÂ 2. Irrigation and Drainage Engineering MCQsIrrigation Methods and Systems MCQsCanal and Pipe Flow Design MCQsSurface and Subsurface Drainage MCQsSprinkler and Drip Irrigation Systems MCQsWater Management MCQsđšÂ 3. Groundwater and Hydraulics MCQsGroundwater Hydrology MCQsWell Hydraulics MCQsPumping Systems MCQsHydraulic Structures for Irrigation MCQsđšÂ 4. Farm Machinery and Power MCQsFarm Machinery Design and Operation MCQsFarm Tractors and Power Units MCQsTesting and Evaluation of Agricultural Equipment MCQsTillage, Sowing, Plant Protection, Harvesting Machinery MCQsErgonomics and Safety in Agricultural Operations MCQsđšÂ 5. Agricultural Processing and Food Engineering MCQsPost-Harvest Technology MCQsUnit Operations in Agricultural Processing MCQsGrain Drying and Storage MCQsAgricultural Produce Handling MCQsFood Refrigeration and Cold Chain Management MCQsProcess Equipment Design MCQsđšÂ 6. Renewable Energy in Agriculture MCQsSolar Energy Applications in Agriculture MCQsBiogas and Biomass Energy Systems MCQsWind Energy for Agricultural Use MCQsEnergy in Agriculture (Efficiency, Auditing, Management) MCQsđšÂ 7. Farm Structures MCQsDesign of Farm Buildings MCQsStorage Structures (Grain Silos, Godowns) MCQsAnimal Housin MCQsEnvironmental Control in Structures MCQsđšÂ 8. Agricultural Waste and Environmental Engineering MCQsAgricultural Waste Management MCQsEffluent Treatment Systems MCQsEnvironmental Pollution from Agriculture MCQsControlled Environment Agriculture (Greenhouses, Polyhouses) MCQsđšÂ 9. Precision Agriculture and Automation MCQsPrecision Farming Tools and Techniques MCQsSensors and IoT in Agriculture MCQsGPS and GIS Applications MCQsVariable Rate Technology MCQsAutomation and Robotics in Agriculture MCQsđšÂ 10. Remote Sensing and GIS for Agriculture MCQsSatellite Imaging for Crop Monitoring MCQsLand Use Mapping MCQsSoil and Water Resource Mapping MCQsđšÂ 11. Instrumentation and Control Systems in Agriculture MCQsAgricultural Sensors and Data Acquisition MCQsControl Systems for Irrigation, Machinery, Processing MCQsMechatronics in Agricultural Applications MCQsđšÂ 12. Project Planning and Farm Management MCQsFarm Planning and Cost Estimation MCQsMachinery Management MCQsResource Use Optimization MCQsAgricultural Engineering Economics (optional but core-specific) MCQsđšÂ 13. Agricultural Engineering Design and Drawing MCQsComponent Design (Machinery, Structures, Tools) MCQsCAD Applications in Agriculture MCQsAssembly and Part Drawings of Agricultural Equipment MCQsđšÂ 14. Practical Training / Field Work MCQsMachine Demonstration & Operation MCQsIrrigation Layout and Design MCQsFood Processing Plant Visits MCQs