A raingauge should preferably be fixed________________?
(A) near the building
(B) under the tree
(C) in an open space
(D) in a closed space
Under the same conditions, which of the following shapes of water surface will give the highest rate of evaporation ?
(A) flat water surface
(B) convex water surface
(C) concave water surface
(D) independent of shape of water surface
When surface of transpiration is submerged under water, then potential evapotranspiration is________________?
(A) much more than evapotranspiration
(B) much less than evapotranspiration
(C) equal to evapotranspiration
(D) equal to or less than evapotranspi-ration
The runoff increases with________________?
(A) increase in intensity of rain
(B) increase in infiltration capacity
(C) increase in permeability of soil
(D) all of the above
A current meter is used to measure the__________________?
(A) velocity of flow of water
(B) depth of flow of water
(C) discharge
(D) none of the above
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 slipping of driving wheels of locomotives on the rail surface causes_______________?
(A) wheel burns
(B) hogging of rails
(C) scabbing of rails
(D) corrugation of rails