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Irrigation Water Resources Engineering - Interview Questions and Answers

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21. The most suitable chemical which can be applied to the water surface for reducing evaporation is
A. methyl alcohol
B. ethyl alcohol
C. cetyl alcohol
D. butyl alcohol
Explanation:
22. Select the incorrect statement.
A. Intensive irrigation should be avoided in areas susceptible to water logging.
B. Extensive irrigation should be adopted in areas susceptible to water logging.
C. Lift irrigation increases water logging.
D. all of the above
Explanation:
23. Which of the following methods is used to estimate flood discharge based on high water marks left over in the past ?
A. slope-area method
B. area-velocity method
C. moving boat method
D. ultra-sonic method
Explanation:
24. With the increase in the quantity of water supplied, the yield of most crops
A. increases continuously
B. decreases continuously
C. increases upto a certain limit and then becomes constant
D. increases upto a certain limit and then decreases
Explanation:
25. In India, which of the following is adopted as standard recording raingauge ?
A. Symon's raingauge
B. tipping bucket type
C. natural syphon type
D. weighing bucket type
Explanation:
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