Pick up the correct statement from the following: If the flexibility is more tha

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Question
Pick up the correct statement from the following:
Options
A. If the flexibility is more than one, the outlet is hyper-proportional
B. If the setting of an outlet is higher than that required for proportionality, the outlet is hyper-proportional
C. If the setting of an outlet is lower than that required for proportionality, the outlet is sub-proportional
D. If the flexibility is zero, it is a rigid module
E. All the above.

Correct Answer

All the above.

Irrigation problems

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2. Pick up the correct statement from the following:
Options
A. Duty of canal water is defined as the total area irrigated by the discharge averaging one unit during the base period of the duty
B. Duty of canal water is usually calculated at the head discharge of a channel
C. Duty of canal water at the head of a channel and at the outlet of a distributary, differ considerably due to progressive losses of water
D. Duty of canal water at the outlet of a distributary, is generally known as outlet factor or outlet discharge factor
E. All the above.

3. The top of the capillary zone
Options
A. lies below the water table at every point
B. lies above the water table at every point
C. coincides the water table at every point
D. none of these.

4. For the design of major hydraulic structures on the canals, the method generally preferred to, is based on
Options
A. Bligh's theory
B. Electrical analogy method
C. The relaxation method
D. Khosla's method of independent variables.

6. The intensity of irrigation means
Options
A. percentage of culturable commanded area to be irrigated annually
B. percentage of gross commanded area to be irrigated annually
C. percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually
D. total depth of water supplied by the number of waterings.

7. Borrow pits should preferably be located in
Options
A. field on the left side of the canal
B. field on the right side of the canal
C. fields on both sides of the canal
D. central half width of the section of the canal.

8. If L is total length of a canal in kilometres, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is
Options
A. 1000 PLC
B.
C.
D.

9. For designing the venturi head,
Options
A. width of the throat should not be less than one-third of the bed width of main canal
B. width of the throat should not be less than the width obtained from the formula B = Q / 1.2d^3/2, where d is the difference in levels of F.S.L. and sill
C. minimum throat width should not be less than 60 cm
D. length of the throat should be 2.5 times the depth measured to F.S.L. in the main canal
E. all the above.

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