Irrigation Engineering MCQ Questions & Answers

51

The "outlet discharge factor" is the duty at the head of

A) main canal B) branch canal C) watercourse D) distributory

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Answer & Solution

Answer: Option C

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52

If A is the area of the surface, $$\overline {\text{x}} $$ is the depth of its C.G. from the surface of the water and $$\omega $$ is the density of water, then

A) Total pressure on the surface is equal to $$\omega \overline {\text{x}} $$ B) Depth of the point at which total pressure acts is equal to its moment of inertia divided by $${\text{A}}\overline {\text{x}} $$ C) Depth of the centre of pressure is $$\frac{2}{3}{\text{H}}\,$$ vertically below the surface D) All the above

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Answer & Solution

Answer: Option D

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53

A water-logged land is found suitable for cultivation due to

A) Ease of tillage for preparation of the field for optimum condition of germination B) Absence of aeration of soil from root zone of the plant C) Regular supply of water to plants from the water table by capillary action D) None of these

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Answer & Solution

Answer: Option D

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54

An outlet which maintains a constant discharge irrespective of fluctuation in the water levels of the supplying channel or water course, is known as

A) Non-modular outlet B) Semi-modular outlet C) Flexible modular outlet D) Right modular outlet

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Answer & Solution

Answer: Option D

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55

If L is total length of a canal in kilometers, 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

A) $$1000\,{\text{PLC}}$$ B) $$\frac{{{\text{PLC}}}}{{1000}}$$ C) $$\frac{{{\text{PL}}}}{{1000{\text{C}}}}$$ D) $$\frac{{{\text{PC}}}}{{100{\text{L}}}}$$

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Answer & Solution

Answer: Option A

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56

Which of the following methods is used to estimate flood discharge based on high water marks left over in the past ?

A) slope-area method B) area-velocity method C) moving boat method D) ultra-sonic method

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Answer & Solution

Answer: Option A

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57

The drainage water intercepting the canal can be disposed of by passing the canal below the drainage in

A) aqueduct and syphon aqueduct B) aqueduct and super passage C) super passage and canal syphon D) level crossing

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Answer & Solution

Answer: Option C

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58

According to Bligh's creep theory, percolating water flows along

A) Straight path under the foundation of the dam B) Circular path under the foundation of the dam C) The outline of the base of the foundation of the dam D) None of these

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Answer & Solution

Answer: Option D

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59

A river training work is generally required when the river is

A) Meandering B) Aggrading C) Degrading D) All the above

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Answer & Solution

Answer: Option A

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60

A river training work is generally required when the river is

A) aggrading type B) degrading type C) meandering type D) both (A) and (B)

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Answer & Solution

Answer: Option C

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Irrigation Engineering MCQ Questions & Answers | Civil Engineering