Irrigation Engineering - Study Mode

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[#181] The total capacity of a reservoir is 25 million cubic metres and dead storage is 5 million cubic metres. If the average volume of sediment deposition is 0.10 million cubic metre per year, then the usefulness of the reservoir will start reducing after

(A) 50 years

(B) 150 years

(C) 200 years

(D) 250 years

Correct Answer

(A) 50 years

[#182] To hold hydraulic jumps, baffle walls are provided in

(A) Sarda type falls

(B) English type falls

(C) Montague type falls

(D) Vertical type falls

Correct Answer

(B) English type falls

[#183] To determine the discharge at a section in a stream from its rating curve, the required data are i) slope of water surface at the section ii) stage at the section iii) current meter readings at the section The correct answer is

(A) (i) and (ii)

(B) (ii) and (iii)

(C) only (ii)

(D) only (iii)

Correct Answer

(C) only (ii)

[#184] Variability of rainfall is i) largest in regions of high rainfall ii) largest in coastal areas iii) largest in regions of scanty rainfall The correct answer is

(A) only (i)

(B) (i) and (ii)

(C) only (iii)

(D) (ii) and (iii)

Correct Answer

(C) only (iii)

[#185] Interception losses are due to i) evaporation ii) transpiration iii) stream flow The correct answer is

(A) Only (i)

(B) (i) and (ii)

(C) (ii) and (iii)

(D) (i), (ii) and (iii)

Correct Answer

(A) Only (i)