All Free Agriculture MCQs with Answers
Every Agriculture question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
2,315 questions · page 60 of 116
- A. All are correct
- B. Transpiration
- C. Evaporation
- D. Evapotranspiration
Explanation: Evapotranspiration combines evaporation from water and soil surfaces with transpiration from plant tissues.
Correct answer: Evapotranspiration- A. 80%
- B. 100%
- C. 50% l
- D. 20%
Explanation: A reservoir is commonly regarded as having reached the end of its useful life when sedimentation has consumed about 80% of its design…
Correct answer: 80%- A. In a weir with end contractions
- B. In a suppressed weir
- C. In a cippoletti weir
- D. In all weir
Explanation: Aeration holes admit air beneath the nappe of a suppressed weir, preventing excessive sub-atmospheric pressure and nappe sticking.
Correct answer: In a suppressed weir- A. Sharp edged orifice
- B. Broad crested weir
- C. Venturi meter
- D. Cippoletti weir
Explanation: A venturi meter has a very high coefficient of discharge, generally close to unity, because its gradual contraction and expansion produce…
Correct answer: Venturi meter- A. Water tunnel
- B. Seepage Drain
- C. Seepage tunnel
- D. Seepage gallery
Explanation: A seepage gallery is a passage constructed in a dam or its foundation to intercept, collect and drain seepage water.
Correct answer: Seepage gallery- A. Equipotential lines
- B. flow lines
- C. Section lines
- D. Streak lines
Explanation: Flow lines in a flow net indicate the paths followed by water as it moves through the soil beneath a dam.
Correct answer: flow lines- A. Wave wash
- B. Tide
- C. Wave amplitude
- D. Fetch
Explanation: Fetch is the unobstructed distance over which wind blows across a water surface and generates waves.
Correct answer: Fetch- A. Frictional pile
- B. Load Bearing
- C. Cost-in situ piles
- D. All are correct
Explanation: A friction pile transfers its load mainly through skin resistance along the pile-soil interface when it does not reach firm rock or…
Correct answer: Frictional pile- A. Check line
- B. Contour line
- C. Ordinate line
- D. All are correct
Explanation: A contour line joins points having the same elevation or level, and in hydraulic applications similar lines can represent equal hydraulic…
Correct answer: Contour line- A. Evapo-transpiration
- B. Consumptive use
- C. Un-confined water
- D. a & b are correct
Explanation: Evapotranspiration combines evaporation from the soil or nearby field surface with transpiration from plants.
Correct answer: a & b are correct- A. Broad irrigation
- B. Border irrigation
- C. Trickle irrigation
- D. Check irrigation
Explanation: Broad irrigation disposes of sewage by spreading it over specially prepared, level farm land, where it infiltrates the soil and supports…
Correct answer: Broad irrigation- A. 100 cm
- B. 80 cm
- C. 50 cm
- D. 40 cm
Explanation: Cotton is commonly assigned a delta of about 50 cm, representing its total seasonal water requirement expressed as an equivalent depth.
Correct answer: 50 cm- A. Aquifuge
- B. Aquifer
- C. Aquiclude
- D. Confined-aquifer
Explanation: An aquifuge is completely impermeable and cannot store or transmit groundwater.
Correct answer: Aquifuge- A. Laminar flow
- B. Turbulent flow
- C. Irrotational flow
- D. Stream line flow
Explanation: Flood flows have high velocity and strong mixing, producing irregular motion and eddies characteristic of turbulent flow.
Correct answer: Turbulent flow1195. The precipitation that falls during the growing season of the crop is called__________________?
- A. all are correct
- B. Direct rain fall
- C. Monsoon rain fall
- D. Useful rain fall
Explanation: Rainfall received during the crop-growing period is termed useful rainfall in this classification because it can contribute directly to…
Correct answer: Useful rain fall- A. Steady
- B. Uniform
- C. Unsteady
- D. Non-Uniform
Explanation: A flow is steady when its properties at a fixed point, such as velocity, pressure or discharge, do not change with time.
Correct answer: Steady- A. Useful storage + surcharge storage -valley storage
- B. Useful storage + surcharge storage
- C. Useful storage + surcharge storage
- D. Useful storage - valley storage
Explanation: For flood-control storage, effective storage is obtained by adding useful and surcharge storage and excluding the valley storage already…
Correct answer: Useful storage + surcharge storage -valley storage- A. Average discharge
- B. Dominant discharge
- C. Maximum discharge
- D. Critical discharge
Explanation: A river's meanders are shaped by the discharge that occurs most frequently and controls long-term channel form, called the dominant or…
Correct answer: Dominant discharge- A. All the above
- B. Crushing
- C. Sliding
- D. Piping
Explanation: Permeable foundations allow seepage beneath a dam or barrage, which can carry soil particles downstream and form internal channels, a…
Correct answer: Piping- A. Desalinization
- B. Water application
- C. Water mixing
- D. All are correct
Explanation: Desalinization, more commonly spelled desalination, removes dissolved salts from saline water; reverse osmosis is one of its principal…
Correct answer: Desalinization