1
GATE CE 2017 Set 2
Numerical
+2
-0
The culturable command area of a canal is 10,000 ha. The area grows only two crops-rice in the Kharif season and wheat in the Rabi season. The design discharge of the canal is based on the rice requirements, which has an irrigated area of 2500 ha, base period of 150 days and delta of 130 cm. The maximum permissible irrigated area (in ha) for wheat, with a base period of 120 days and delta of 50 cm, is_______.
Your input ____
2
GATE CE 2013
MCQ (Single Correct Answer)
+2
-0.6
The transplantation of rice requires 10 days and total depth of water required during transplantation is 48 cm. During transplantation, there is an effective rainfall (useful for irrigation) of 8 cm. The duty of irrigation water (in hectare/ cumec) is:
A
612
B
216
C
300
D
108
3
GATE CE 2012
MCQ (Single Correct Answer)
+2
-0.6
Wheat crop requires 55 cm of water during 120 days of base period. The total rainfall during this period is 100 mm. Assume the irrigation efficiency to be 60%. The area (in ha) of the land which can be irrigated with a canal flow of 0.01 $$m^3/s$$ is
A
13.82
B
18.85
C
23.04
D
230.40
4
GATE CE 2010
MCQ (Single Correct Answer)
+2
-0.6
The moisture holding capacity of the soil in a 100 hectare farm is 18cm/m. the field is to be irrigated when 50 percent of the available moisture in the root zone is depleted. The irrigation water is to be supplied by a pump working for 10hours a day, and water application efficiency is 75%. Details of crops planned for cultivation are as follows:
Crop Root zone depth (m) Peak rate of moisture use(mm/day)
X 1.0 5.0
Y 0.8 4.0
The capacity of irrigation system required to irrigate crop X in 36 hectares is
A
83litres/sec
B
67 liters/sec
C
57 liters/sec
D
53 liters/sec
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