Irrigation Engineering MCQ Questions & Answers

51

Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?

A) canal fall B) canal outlet C) canal escape D) canal regulator

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Answer & Solution

Answer: Option C

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52

The sensitivity of a rigid module is

A) zero B) between zero and one C) 1 D) infinity

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Answer & Solution

Answer: Option A

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53

In a syphon aqueduct

A) Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough B) Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough C) Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough D) Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough

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Answer & Solution

Answer: Option C

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54

For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is

A) $$\frac{{\text{m}}}{{\text{N}}}$$ B) $$\frac{{\text{m}}}{{{\text{N}} + 1}}$$ C) $$\frac{{{\text{N}} + 1}}{{\text{m}}}$$ D) $$\frac{{\text{N}}}{{{\text{m}} + 1}}$$

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Answer & Solution

Answer: Option C

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55

The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than

A) 10 cm B) 20 cm C) 30 cm D) 40 cm

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Answer & Solution

Answer: Option C

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56

The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is

A) 1.084 B) 1.074 C) 1.064 D) 1.054

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Answer & Solution

Answer: Option A

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57

A fall in a canal bed is generally provided, if

A) Ground slope exceeds the designed bed slope B) Designed bed slope exceeds the ground slope C) Ground slope is practically the same as the designed bed slope D) None of these

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Answer & Solution

Answer: Option A

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58

As compared to gravity dams, earthen dams

A) are costlier B) are less susceptible to failure C) require sound rock foundations D) require less skilled labour

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Answer & Solution

Answer: Option D

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59

Bed bars in a canal are provided

A) To watch the general behavior of canal B) To measure the discharge C) To raise the supply level D) To control the silting

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Answer & Solution

Answer: Option A

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60

The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called

A) hygroscopic water B) equivalent moisture C) soil moisture deficiency D) pellicular water

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Answer & Solution

Answer: Option C

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Irrigation Engineering MCQ Questions & Answers | Civil Engineering