1) The irrigation engineering may be defined as

• (a) the process of artificially supplying water to soil for raising crops
• (b) a science of planning and designing an efficient and economic irrigation system.
• (c) the engineering of controlling and harnessing the various natural sources of water, by the construction of dams, canals and finally distributing the water to the agricultural fields
• (d) all of the above

2) 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

3) The irrigation water is said to be unsatisfactory, if it contains

• (a) chemicals toxic to plants or to persons using plants as food
• (b) chemicals which react with the soil to produce unsatisfactory moisture characteristics
• (c) bacteria injurious to persons or animals eating plants irrigated with water
• (d) all of the above

4) Which of the following is also called inundation irrigation?

• (a) Diversion irrigation
• (b) Storage irrigation
• (c) Flow irrigation
• (d) Combined scheme

5) Which type of irrigation is practiced when the water supply is at too low a level to run by gravitation of the land?

• (a) Lift irrigation
• (b) River canal irrigation
• (c) Flow irrigation
• (d) Inundation irrigation