The field capacity of a soil is 25%, its permanent wilting point is 15% and specific dry unity weight is 1.5. If the depth of root zone of a crop, is 80 cm, the storage capacity of the soil, is
A. 8 cm
B. 10 cm
C. 12 cm
D. 14 cm
Answer: Option C
This Question Belongs to Civil Engineering >> Irrigation Engineering
Join The Discussion
Comments ( 1 )
Related Questions on Irrigation Engineering
Finally formed berms in canals are provided for
A. Protection of banks erosion by the waves
B. Control of seepage losses
C. Strengthening of banks
D. All the above
Canals constructed for draining off water from water logged areas, are known
A. Drains
B. Inundation canals
C. Valley canals
D. Contour canals
A hydroelectric scheme operating under a head of 80 m will be classified as
A. low head scheme
B. medium head scheme
C. high head scheme
D. none of the above
A. Low sodium water
B. Medium sodium water
C. High sodium water
D. Very high sodium water
Formula is (Yd/Yw)*d*(field capacity-permanent welting point)
Given data:-
Yd=1.5,
Yw=1,
Depth zone=80 cm,
Field capacity=35%=35/100=0.35,
Permanent wilting point=15%=15/100=0.15,
So, (1.5/1)*80*(0.35-0.15)=12 cm,
Correct answer is 12 cm