The water utilizable by plants is available in soils mainly in the form of________________?

Related Mcqs:

1. S-hydrograph is used to obtain unit hydrograph of________________?

   A. shorter duration from longer duration
   B. longer duration from shorter duration
   C. both (A) and (B)
   D. none of the above

2. Hydrograph is the graphical representation of________________?

   A. runoff and time
   B. surface runoff and time
   C. ground waterflow and time
   D. rainfall and time

3. Instantaneous unit hydrograph is a hydrograph of________________?

   1) unit duration
   2) unit rainfall excess
   3) infinitely small duration
   4) infinitely small rainfall excess
   The correct answer is?

   A. (1) and (2)
   B. (1)and(4)
   C. (2) and (3)
   D. (3) and (4)

4. For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of_______________?

   A. rabi or kharif
   B. rabi and kharif or sugarcane
   C. rabi and sugarcane or kharif and sugarcane
   D. rabi or kharif or sugarcane

5. When the upstream face of a gravity dam is vertical, then the intensity of water pressure at the water surface and at the base respectively will be_______________?

   A. 0 and wH212
   B. wH2/2and wH2/3
   C. wH and 0
   D. OandwII

   where w is unit weight of water and H is the depth of water

6. The stage of river carrying a discharge of Q m7sec at a point is 10 m and slope of water surface is (1/4000). The discharge of a flood at the same point and same stage of 10 m with a water surface slope of(l/1000) will be________________?

   A. V2 Q m3/sec
   B. 0.5 Q mVsec
   C. 2 Q m3/sec
   D. 4 Q m3/sec

7. 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

8. With the increase in the quantity of water supplied, the yield of most crops_________________?

   A. increases continuously
   B. decreases continuously
   C. increases upto a certain limit and then becomes constant
   D. increases upto a certain limit and then decreases

9. The useful storage is the volume of water stored in the reservoir between________________?

   A. minimum pool level and maximum pool level
   B. minimum pool level and normal pool level
   C. normal pool level and maximum pool level
   D. river bed and minimum pool level

10. 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