Presence of tail water in a gravity dam_____________?

A. 1) increases the principal stress
B. 2) decreases the principal stress
C. 3) increases the shear stress
D. 4) decreases the shear stress

The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are________________?

A. 1) water pressure
B. 2) self weight
C. 3) uplift
D. 4) pressure due to earthquake

Rate of evaporation from a water surface increases if_________________?

A. 1) difference of vapour pressure between water and air is increased
B. 2) velocity of wind is decreased
C. 3) concentration of soluble solids in water is decreased
D. The correct answer is?

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

Optimum depth of kor watering for rice is______________?

A. 135 mm
B. 165 mm
C. 190 mm
D. 215 mm

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

The ratio of the quantity of water stored in the root zone of the crops to the quantity of water actually delivered in the field is known as__________________?

A. Water conveyance efficiency
B. Water application efficiency
C. Water use efficiency
D. None of the above

The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called________________?

A. Effective rainfall
B. Consumptive use
C. Consumptive irrigation requirement
D. Net irrigation requirement

Hydrograph is the graphical representation of________________?

A. Runoff and time
B. Surface runoff and time
C. Ground waterflow and time
D. Rainfall and time

The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called_________________?

A. Hygroscopic water
B. Equivalent mositure
C. Soil mositure deficiency
D. Pellicular water