Irrigation Engineering Objective Questions and Answers - Set 02 - ObjectiveBooks

Irrigation Engineering Objective Questions and Answers - Set 02

Practice Test: Question Set - 02

1. The main cause of silting up a channel,
    (A) Non-regime section
    (B) Inadequate slope
    (C) Defective head regulator
    (D) All the above

2. Pick up the correct statement from the following:
    (A) Gravity water is harmful to crops
    (B) Hygroscopic water remains attached to soil molecules by chemical bond
    (C) Capillary moisture held in the soil pores against gravity by surface tension, is utilized by plants
    (D) All the above

3. A river training work is generally required when the river is
    (A) Meandering
    (B) Aggrading
    (C) Degrading
    (D) All the above

4. When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called
    (A) Syphon
    (B) Aqueduct
    (C) Super passage
    (D) Syphon-aqueduct

5. Pick up the correct statement from the following
    (A) In a level crossing, a crest with its top at the canal F.S.L. is provided across the drainage at its up-stream junction with canal
    (B) In a level crossing a regulator is provided across the drainage at its down-stream
    (C) In a level crossing, a cross regulator is provided on the canal below the crossing
    (D) All the above

6. In a Sarda type fall, the rectangular crest, may be used for discharge up to
    (A) 6 cumecs
    (B) 10 cumecs
    (C) 14 cumecs
    (D) 20 cumecs

7. The measure to remove water logging of land, is
    (A) To reduce percolation from canals and water courses
    (B) To increase outflow from the ground water reservoir
    (C) Both (a) and (b)
    (D) Neither (a) nor (b)

8. Borrow pits should preferably be located in
    (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

9. The sinuosity of a meander is the ratio of
    (A) Meander length and the width of meander
    (B) Meander length and half width of the river
    (C) Curved length and the straight distance
    (D) None of these

10. Pick up the correct statement from the following:
    (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 flexibility is zero, it is a rigid module
    (D) All the above

11. According to Khosla, the exits gradient of surface flow
    (A) Depends upon the b/d ratio
    (B) Is independent of the b/d ratio
    (C) Is independent of the depths of d/s cut off walls
    (D) None of these

12. A hydraulic structure is designed to withstand
    (A) Seepage forces
    (B) Hydraulic jump
    (C) Hydraulic pressure
    (D) All the above

13. If the optimum depth of kor watering for a crop is 15.12 cm, the outlet factor for the crop for four week period in hectares per cumec, is
    (A) 1000
    (B) 1200
    (C) 1400
    (D) 1600

14. In Montague type fall
    (A) A straight glacis is provided
    (B) A circular glacis is provided
    (C) A parabolic glacis is provided
    (D) No glacis is provided

15. Cross regulators in main canals are provided
    (A) To regulate water supply in the distributaries
    (B) To increase water head upstream when a main canal is running with low supplies
    (C) To overflow excessive flow water
    (D) None of these

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