The EC: SAR and RSC values suggested by WAPDA for 3rd class irrigation water(C,S,R,) are____________________?

Related Mcqs:

1. The formula used for calculating RSC is _____________________?

   A. RSC=(CO32 + HCO2) (Na + K + Ca2 + Mg2)
   B. RSC=(CO32 + HCO2) ( Ca2 + Mg2)
   C. None of the above
   D. non of these

2. The horizontal flow of water in irrigation channel or canal leading to water loss is called as:_________?

   A. Infiltration
   B. Percolation
   C. Seepage
   D. All of these

   Submitted by: Shafiq Rehman

3. According to WAPDA, the ECe of the salt free soil should remain__________________?

   A. < 4 dsm-1
   B. Equal to 4 dsm-1
   C. 4-8 dsm-1
   D. None of the above

4. Boron concentration is irrigation water is considered safe only upto_________________?

   A. 0.7 ppm
   B. 1.5 ppm
   C. 2 ppm
   D. 3 ppm

5. The depth of irrigation water required for the full crop period is called_________?

   A. Delta of water 
   B. Water required
   C. Crop water required
   D. None of these

   Submitted by: Mukhtir Ali jan

6. Planets in our system are____________________?

   A. 8
   B. 12
   C. 10
   D. 9

7. Rocks which are formed by disintegration of pre-existing rocks by weathering are____________________?

   A. Sand stone
   B. Classics
   C. Igneous
   D. Greis

8. Total salt affected soils of Pakistan are____________________?

   A. 6.3 m ha
   B. 5.0 m ha
   C. 12.3 m ha
   D. 10.5 m ha

9. Examples of micro biota are____________________?

   A. Protozoa
   B. Virus
   C. Both a & b
   D. None of the above

10. The digestive vacuole in the animal cell are____________________?

    A. Ribosomes
    B. Lysosomes
    C. Lysozymes
    D. Dictysomes