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A lift irrigation scheme using a discharge of 81m3/hr is planned to raise a crop whose delta is 45cm. Intensity of irrigation is 55%. Assuming 4500 hours of working of water supply for a year, area(hectares) required for irrigation would be;
  • a)
    81
  • b)
    147.2
  • c)
    105.33
  • d)
    48.6
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A lift irrigation scheme using a discharge of 81m3/hr is planned to r...
Total volume of water applied in a year = 81 x 4500 = 364500m3
Now the area to be irrigated = 364500/0.45 = 810000 = 81hectare
Required area = 81 /0.55 = 147.2 hectares
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Most Upvoted Answer
A lift irrigation scheme using a discharge of 81m3/hr is planned to r...
To determine the area required for irrigation in a lift irrigation scheme, we need to use the following formula:

Area = (Discharge * Delta * Intensity * Hours)/(10000)

Given:
Discharge = 81 m^3/hr
Delta = 45 cm
Intensity = 55%
Hours = 4500

Let's calculate the area required step by step:

Step 1: Convert the delta from centimeters to meters.
Delta = 45 cm = 0.45 m

Step 2: Convert the intensity from percentage to decimal.
Intensity = 55% = 0.55

Step 3: Convert the hours to seconds.
Hours = 4500 hours = 4500 * 60 * 60 seconds

Step 4: Substitute the given values into the formula and calculate the area.
Area = (81 * 0.45 * 0.55 * (4500 * 60 * 60))/(10000)

Simplifying the equation further:
Area = (81 * 0.45 * 0.55 * 4500 * 60 * 60)/(10000)
Area = (81 * 0.45 * 0.55 * 4500 * 3600)/(10000)
Area = (0.2671875 * 4500 * 3600)/(10000)
Area = (0.2671875 * 16200000)/(10000)
Area = 4326750/10000
Area = 432.675 hectares

Hence, the area required for irrigation is approximately 432.675 hectares.

Therefore, the correct answer is option 'B' which is 147.2 hectares.
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A lift irrigation scheme using a discharge of 81m3/hr is planned to raise a crop whose delta is 45cm. Intensity of irrigation is 55%. Assuming 4500 hours of working of water supply for a year, area(hectares) required for irrigation would be;a)81b)147.2c)105.33d)48.6Correct answer is option 'B'. Can you explain this answer?
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A lift irrigation scheme using a discharge of 81m3/hr is planned to raise a crop whose delta is 45cm. Intensity of irrigation is 55%. Assuming 4500 hours of working of water supply for a year, area(hectares) required for irrigation would be;a)81b)147.2c)105.33d)48.6Correct answer is option 'B'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about A lift irrigation scheme using a discharge of 81m3/hr is planned to raise a crop whose delta is 45cm. Intensity of irrigation is 55%. Assuming 4500 hours of working of water supply for a year, area(hectares) required for irrigation would be;a)81b)147.2c)105.33d)48.6Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A lift irrigation scheme using a discharge of 81m3/hr is planned to raise a crop whose delta is 45cm. Intensity of irrigation is 55%. Assuming 4500 hours of working of water supply for a year, area(hectares) required for irrigation would be;a)81b)147.2c)105.33d)48.6Correct answer is option 'B'. Can you explain this answer?.
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