The field capacity of a soil depends upon capillary tension in soil porosity of

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Question
The field capacity of a soil depends upon
Options
A. capillary tension in soil
B. porosity of soil
C. both (a) and (b)
D. neither (a) nor (b).

Correct Answer

both (a) and (b)

Irrigation problems

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1. A river is said to be of
Options
A. aggrading type if it builds up its bed to a certain slope
B. degrading type if it cuts its bed to a certain slope
C. meandering type if it flows in sinuous curve
D. all the above.

2. According to Lacey, in regime conditions
Options
A. silt is kept in suspension by vertical components of eddies
B. entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter
C. both (a) and (b)
D. neither (a) nor (b).

3. If D_c is the critical depth, D is the depth of water down stream and H_L is the total head loss at the cistern of a vertical fall, the depth x of the cistern below the bed level down stream suggested by Blench, is
Options
A.
B.
C.
D.

4. Lane's weighted creep theory assumes
Options
A. equal weightage to horizontal and vertical creeps
B. double weightage to horizontal creep and one weightage to vertical creep
C. triple weightage to horizontal creep and one weightage to vertical creep
D. triple weightage to vertical creep and one weightage to horizontal creep
E. double weightage to vertical creep and one weightage to horizontal creep.

5. Pick up the correct sequence of the part of a canal system from the following
Options
A. Head work-distributary-branch canal-minor
B. Head works-main canal-branch canal-dis-tributary-minor
C. Head works-main canal-branch canal-minor-distributary
D. Heads works-branch canal-main canal distributary, minor.

9. Minimum length of a transition curve required for
Options
A. 2� curves for a maximum permissible speed of 135 km/hr, is 220 metres
B. 4� curves for a maximum permissible speed of 95 km/hr, is 220 metres
C. 6� curves for a maximum permissible speed of 80 km/hr, is 220 metres
D. All the above.

10. Heel of crossing is the line joining
Options
A. ends of splice rail and point rail
B. ends of lead rails butting the crossing
C. ends of wing rails
D. throat and actual nose of crossing.

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