Agriculture General Agriculture MCQs AgriScan  

Irrigation and water management in crops

Self-assessment Test (SAT)

for

Water management in crops

 (Useful for students appearing JRF/SRF/NET-Agronomy, IBPS AFO, RAEO, RHEO, AAO, ASCO, ADA, IFFCO & other agri-competitive examinations)

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 Q.1 Under normal weather conditions or unlimited resource availability, the contribution of active absorption is
  1. < 10%
  2. > 10%
  3. > 20%
  4. > 50%
Q.2 Percentage of total water uptake by lower 25% of the root zone is
  1. 10%
  2. 20%
  3. 30%
  4. 40%
Q.3 The relationship between evapotranspiration and crop yield of pulses is   
  1. Linear
  2. Quadratic
  3. Exponent
  4. Logarithmic
Q.4 Which among the following crop has a higher crop coefficient value ?
  1. Citrus
  2. Grape
  3. Pineapple
  4. Banana
Q.5 Percentage of water that is used in the metabolic activity of crops ?
  1. < 1%
  2. 5%
  3. 10%
  4. 50%
Q.6 Major source of irrigation in India is
  1. Canal
  2. Tank
  3. River
  4. Well
Q.7 Crop water requirement of cotton is
  1. 250 mm
  2. 600 mm
  3. 1200 mm
  4. 2000 mm
Q.8 The irrigation measuring instrument that is used in measuring water flow in open channel 
  1. H Flume
  2. Laminograph
  3. Open flow meter
  4. Low-pressure line meter
Q.9 Scheduling in wheat, cotton, and maize is done at ____% DASM at moisture limited condition ?
  1. 25%
  2. 50%
  3. 75%
  4. 90%
Q.10 Which among the following method of irrigation is suitable for cotton and vegetables  ?
  1. Flooding
  2. Check basin
  3. Ring basin
  4. Ridge and furrow
Q.11 Entire growth stages are moisture sensitive in which among the following crop ?
  1. Rice
  2. Pea
  3. Tobacco
  4. Sugarcane
Q.12 Which among the following criteria of irrigation scheduling is mostly accepted and friendly to use by farmers ?
  1. DASM
  2. IW/CPE ratio
  3. Critical growth stage
  4. SDD
  Q.13 Water use efficiency is maximum for
  1. Wheat
  2. Maize
  3. Gram
  4. Pineapple
Q.14 B content below which water is considered as safe for irrigation ? 
  1. 1 ppm
  2. 3 ppm
  3. 10 ppm
  4. 50 ppm
Q.15 Depth of water required by a crop during its life cycle is called
  1. Base period
  2. Available water
  3. Delta
  4. Duty
Q.16 When a plant cell is placed in hypertonic solution, what will be the consequence ?    
  1. No effect
  2. Turgidity
  3. Flaccidity
  4. Osmosis
  Q.17 Indian Institute of water management is located at
  1. Cuttack
  2. Bhubaneswar
  3. Chennai
  4. Lucknow
Q.18 Quantity of water required for land preparation in irrigated low land rice cultivation is
  1. 40 mm
  2. 200 mm
  3. 500 mm
  4. 1200 mm
Q.19 Quantity of water required to produce 1kg rice grain is   
  1. 500-700 lit.
  2. 1000-1200 lit.
  3. 3000-5000 lit.
  4. 11000-14000 lit.
Q.20 Which among the following practice is done to reduce deep percolation loss of water in rice field ?
  1. Puddling
  2. Harrowing
  3. Beushaning
  4. Mulching
  Q.21 Which among the following rice required higher amount of water ?    
  1. Indica rice
  2. Japonica rice
  3. Javanica rice
  4. Aman rice
Q.22 Wheat crop should be irrigated at which among the following stage ?    
  1. CRI
  2. Jointing
  3. Flowering
  4. All of the above
Q.23 The optimum IW/CPE ratio for irrigating wheat crop at CRI stage is
  1. 0.4
  2. 0.6
  3. 0.9
  4. 1.2
Q.24 When irrigation water is not limiting factor, the wheat crop grown in heavy soil can be irrigated at ____% DASM ?      
  1. 25%
  2. 40%
  3. 60%
  4. 80%
Q.25 When wheat is sown in zero tillage condition, the first irrigation to wheat is given at
  1. 5 DAS
  2. 15 DAS
  3. 25 DAS
  4. 30 DAS
Q.26 Which among the following crop is sensitive to both deficit and excess moisture ?
  1. Rice
  2. Maize
  3. Sorghum
  4. Barnyard millet
Q.27 Which among the following stage in maize is most sensitive to water stress ?
  1. Knee high stage
  2. Vegetative stage
  3. Tasseling stage
  4. Silking stage
Q.28 Water requirement is highest for which among the following crop  ?
  1. Rice
  2. Wheat
  3. Maize
  4. Sugarcane
Q.29 Water use efficiency is highest for which among  the following crop ?
  1. Rice
  2. Wheat
  3. Maize
  4. Finger millet
Q.30 Which among the following is the most critical growth stage for sugarcane crop ?
  1. Germination
  2. Formative
  3. Grand growth
  4. Flowering
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