Irrigation Engineering – Civil Engineering MCQ Questions Answers
1) Irrigation frequency is a function of
a) crop only
b) soil, crop and climate
c) soil, crop, climate and fertilizer
d) soil and climate
2) When electrical conductivity of irrigation water is up to ______ micro mhos/cm, it is called low
conductivity water
(a) 125
(b) 250
(c) 375
(d) 500
3) Commonly adopted moisture tension, in atmosphere, of soil at permanent wilting point is
a) 15
b) 7
c) 45
d) 150
4) To avoid formation of saline soil, water table should be kept at least ______ below root zone.
(a) 1 m
(b) 2 m
(c) 3 m
(d) 5 m
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5) The optimum depth of kor-watering for rice is about
a) 25 cm
b) 19 cm
c) 13.5 cm
d) 9 cm
6) Normally difference between the crest level of the under-sluices and the crest level of the weir is
(a) 1 to 1.5 m
(b) 2 to 3.0 m
(c) 3 to 4.0 m
(d) more than 5 m
7) Furrow method of irrigation is most suitable for
a) potatoes
b) rice
c) wheat
d) cotton
8) Among the following, which crop has the highest value to delta?
(a) wheat
(b) vegetables
(c) rice
(d) cotton
9) The canal which is not supposed to do any irrigation is called
a) main canal
b) water course
c) major distributary
d) minor distributary
10) The infertility of the soil in waterlogged area is due to
(a) death of bacteria causing nutrification
(b) increase in salinity
(c) growth of weeds
(d) all of the above