An area is officially declared as drought effected if the mean Annual rain fall is less than of the annual Potential evaporation,______________?

Related Mcqs:

1. How much annual rain fall is in sargodha?

   A. 400 mm
   B. 450 mm
   C. 500 mm
   D. 550 mm

   Submitted by: Muhammad Aiyub

2. That rain fall which is effectively consumed by the plants to meet its consumptive needs is called__________________?

   A. Effective rain fall
   B. Total rainfall
   C. Monsoon rainfall
   D. All are correct

3. The Indus plain is the main agricultural producing region in the country which receives about________________m m of rain fall annually?

   A. 100 mm
   B. 150 mm
   C. 175 mm
   D. 200 mm

4. From a water fall, if water is falling down at the rate of 100 N/sec: on the blades of a turbine when the height of fall is 100 m the power delivered to turbine will be______________?

   A. 1000 kw
   B. 10,000 kw
   C. 100 kw
   D. 5000 kw

5. Water logging and soil salinization is a twin menace which has effected the agriculture sector severely, about _______________ hectares of land are wasted yearly?

   A. 30,000
   B. 35,000
   C. 40,000
   D. 45,000

6. The quantity of water lost by transpiration from the plants or crops and evaporation from fields adjacent to these plants is called ___________________?

   A. Evapo-transpiration
   B. Consumptive use
   C. Un-confined water
   D. a & b are correct

7. the phenomenon of evaporation from water surfaces, from soil surfaces around the plants and from plants and transpiration from plants is called ___________________?

   A. Evapotranspiration
   B. Transpiration
   C. Evaporation
   D. All are correct

8. The discharge through rectangular channel is maximum when Hydraulic mean depth m is equal to ______________?

   A. depth/ 3
   B. depth/ 2
   C. depth/ 4
   D. 2 / 3 depth

9. If in a river the flood rises and falls suddenly due to storm rain, then such river is called __________________?

   A. Virgin
   B. Tidal
   C. Flashy
   D. Deltaic

10. To be more close to the actual field conditions, some times artificial rain tests conducted, the instrument used is called ___________________?

    A. Infiltrometer
    B. I.C. curve
    C. Rain simulator
    D. v Hydrometer