- A. only (i)
- B. both (i) and (ii)
- C. both (i) and (iii)
- D. (i), (ii) and (iii)
Irrigation Engineering
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The uplift pressure on a dam can be controlled by i) constructing cutoff under upstream face ii) constructing drainage channels bet-ween the dam and its foundation iii) by pressure grouting in foundation The corret answer is
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A runoff river plant is_____.
- A. a low head scheme
- B. a medium head scheme
- C. a high head scheme
- D. none of the above
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Pick up the correct statement from the following_____.
- A. Approach of the water line in a flumed channel section should not be steeper than 22½°
- B. Departure of the water line from a flumed channel section should not be steeper than 30°
- C. Approach of the water line should not be steeper than 30° and departure line not steeper than 22½° in a flumed channel section
- D. Approach and departure of the water line in a flumed channel section, should not be steeper than 22½°
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Canals taken off from ice-fed perennial rivers, are known_____.
- A. Permanent canals
- B. Ridge canals
- C. Perennial canals
- D. Inundation canals
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If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be_____.
- A. 1 + (0.9)010
- B. 1 – (0.9)°l0
- C. 1/(1-0.9°10)
- D. 1/(1+ 0.9010)
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The ratio of the quantity of water stored in the root zone of the crops to the quantity of water actually delivered in the field is known as_____.
- A. water conveyance efficiency
- B. water application efficiency
- C. water use efficiency
- D. none of the above
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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
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Lining of irrigation channels_____.
- A. increases the waterlogging area
- B. decreases the waterlogging area
- C. does not change the water logging area
- D. none of the above
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Infiltration is the_____.
- A. movement of water through the soil
- B. absorption of water by soil surface
- C. both (A) and (B)
- D. none of the above
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The width of a meander belt is the transverse distance between_____.
- A. Apex point of one curve and apex point of the reserve curve
- B. Apex point and the crossing
- C. Two banks of meandering river
- D. None of these
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