500 Best Irrigation Engineering MCQ
Top 500 Irrigation Engineering MCQ/ Objective Questions
Q1). The irrigation is necessary in an area
a).where there is a scanty rainfall
b).where the rainfall is non uniform
c).where commercial crops require more water
d).all of the above
Correct Answer:
all of the above
Explanation:
Q2). Sandy soils with good drainage become impermeable after prolonged use if it is irrigated with a water containing ……… sodium.
a).0.25
b).0.5
c).0.75
d).0.85
Correct Answer:
0.85
Explanation:
Q3). For irrigation purposes, the pH value of water should be
a).Between 3 and 6
b).Between 6 and 8.5
c).Between 8.5 and 11
d).More than 11
Correct Answer:
Between 6 and 8.5
Explanation:
Q4). Which of the salt present in water is harmful for cultivation purposes?
a).Sodium carbonate
b).Potassium sulphate
c).Calcium sulphate
d).None of these
Correct Answer:
None of these
Explanation:
Q5). When an oven dried sample of soil is kept open in the atmosphere, it absorbs some amount of water. This water is known as
a).Capillary water
b).Gravitational water
c).Hygroscopic water
d).All of these
Correct Answer:
Hygroscopic water
Explanation:
Q6). A part of water which exist in the porous space of the soil buy molecular attraction, is known as
a).capillary water
b).gravitational water
c).hygroscopic water
d).all of these
Correct Answer:
capillary water
Explanation:
Q7). Superfluous water is also called
a).capillary water
b).gravitational water
c).hygroscopic water
d).all of these
Correct Answer:
gravitational water
Explanation:
Q8). A useful soil moisture for plant growth is
a).capillary water
b).gravitational water
c).hygroscopic water
d).all of these
Correct Answer:
capillary water
Explanation: