What is the primary purpose of irrigation?
a) Flood control
b) Soil erosion
c) Ensure adequate water supply for crops
d) Prevent desertification
Answer: c
What is the primary difference between perennial and inundation irrigation?
a) Method of water distribution
b) Water source availability
c) Crop type
d) Soil type
Answer: b
Which season is associated with Kharif crops?
a) Winter
b) Monsoon
c) Summer
d) Spring
Answer: b
What is the relationship between duty, delta, and base period in irrigation?
a) They are independent of each other
b) Duty and delta depend on the base period
c) Duty determines delta and base period
d) Delta and base period determine duty
Answer: d
Which irrigation method is best suited for uneven terrain?
a) Basin flooding
b) Contour bunding
c) Furrow irrigation
d) Check flooding
Answer: b
What type of rainfall measurement instrument is commonly used?
a) Barometer
b) Anemometer
c) Rain gauge
d) Hygrometer
Answer: c
What is runoff in hydrology?
a) Water that infiltrates the soil
b) Evaporated water
c) Water flowing on the surface after rainfall
d) Water absorbed by plants
Answer: c
Which formula is used to compute maximum flood discharge?
a) Manning’s formula
b) Ryve’s formula
c) Chezy’s formula
d) Bernoulli’s theorem
Answer: b
What is the purpose of a diversion headwork?
a) To measure rainfall
b) To store water permanently
c) To divert water to irrigation channels
d) To prevent soil erosion
Answer: c
Which component of a diversion headwork resists percolation and uplift pressures?
a) Barrage
b) Weir
c) Apron
d) Sluice gate
Answer: c
What is dead storage in a reservoir?
a) Storage below the minimum drawdown level
b) Storage used during floods
c) Storage for agricultural purposes
d) Storage for industrial purposes
Answer: a
Which irrigation method is most water-efficient?
a) Check flooding
b) Sprinkler irrigation
c) Drip irrigation
d) Furrow irrigation
Answer: c
What is the main function of a weir?
a) Measure the velocity of flow
b) Regulate water levels
c) Prevent soil erosion
d) Divert sediment deposits
Answer: b
Which type of reservoir storage is used to meet immediate water demands?
a) Dead storage
b) Live storage
c) Surcharge storage
d) Emergency storage
Answer: b
Which type of catchment area generates more runoff?
a) Impervious
b) Pervious
c) Semi-pervious
d) Open area
Answer: a