61) The method of irrigation used for orchards is

• (a) free flooding
• (b) border flooding
• (c) check flooding
• (d) basin flooding

62) On rolling land, the method of applying water is

• (a) check flooding
• (b) free flooding
• (c) border flooding
• (d) furrow flooding

63) A sprinkler irrigation system is suitable when

• (a) the land gradient is steep and the soil is easily erodible
• (b) the soil is having low permeability
• (c) the water table is low
• (d) the crops to be grown have deep roots

64) Which of the following statement is correct for sprinkler irrigation method?

• (a) It is used for rice and jute
• (b) It is used for the soil having very low infiltration rate
• (c) It is best suitable for very light soil
• (d) It requires borders and field channel

65) The hydrology is a science which deals with the

• (a) occurrence of water on the earth
• (b) distribution of water on the earth
• (c) movement of water on the earth
• (d) all of the above