Top 150+ Solved Irrigation Engineering MCQ Questions Answer
Q. Which of the following methods of applying water may be used on rolling land ?
a. boarder flooding
b. check flooding
c. furrow flooding
d. free flooding
Q. The value of Sodium Absorption Ratio for high sodium water lies between
a. 0 to 10
b. 10 to 18
c. 18 to 26
d. 26 to 34
Q. Irrigation water having the concentration of Na++ , Ca++ and Mg++ as 20, 3 and 1 Milliequivalent per litre respectively will be classified as
a. low sodium water
b. medium sodium water
c. high sodium water
d. very high sodium water
Q. The duty is largest
a. at the head of water course
b. on the field
c. at the head of a main canal
d. same at all places
Q. The "outlet discharge factor" is the duty at the head of
a. main canal
b. branch canal
c. watercourse
d. distributory
Q. The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be
a. 637 hectares/m3/sec
b. 837 hectares/m3/sec
c. 972 hectares/m3/sec
d. 1172 hectares/m3/sec
Q. For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for acapacity equal to the greater of the water requirement of
a. rabi or kharif
b. rabi and kharif or sugarcane
c. rabi and sugarcane or kharif and sugarcane
d. rabi or kharif or sugarcane
Q. The ratio of the quantity of water stored in the root zone of the crops to the quantity of wateractually delivered in the field is known as
a. water conveyance efficiency
b. water application efficiency
c. water use efficiency
d. none of the above
Q. The water utilizable by plants is available in soils mainly in the form of
a. gravity water
b. capillary water
c. hydroscopic water
d. chemical water
Q. The amount of irrigation water required to meet the evapotranspiration needs of the cropduring its full growth is called
a. effective rainfall
b. consumptive use
c. consumptive irrigation requirement
d. net irrigation requirement
Q. 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
Q. Hydrograph is the graphical representation of
a. runoff and time
b. surface runoff and time
c. ground waterflow and time
d. rainfall and time
Q. Infiltration rate is always
a. more than the infiltration capacity
b. less than the infiltration capacity
c. equal to or less than the infiltration capacity
d. equal to or more than the infiltration capacity
Q. The depth of water required to bring the soil moisture content of a given soil upto its fieldcapacity is called
a. hygroscopic water
b. equivalent moisture
c. soil moisture deficiency
d. pellicular water