Irrigation - Section 1 (4)

Directions to Solve

Irrigation - Section 1

Irrigation is a part of this engineering and we provide many MCQs to solve which
are related to this field. You can click on this section to get the questions.

25.

Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less

A.	populated area
B.	alkaline area
C.	forest area
D.	fallow land.

Answer: Option D

Explanation:

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26.

The top of the capillary zone

A.	lies below the water table at every point
B.	lies above the water table at every point
C.	coincides the water table at every point
D.	none of these.

Answer: Option B

Explanation:

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27.

Groynes are generally built

A.	perpendicular to the bank
B.	inclined up stream up to 30°
C.	inclined down stream upto 30°
D.	all the above.

Answer: Option B

Explanation:

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28.

Pick up the correct statement from the following

A.	Approach of the water line in a flumed channel section should not be steeper than
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 in a flumed channel section
D.	Approach and departure of the water line in a flumed channel section, should not be steeper than

Answer: Option C

Explanation:

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29.

For the stability of a structure against seepage pressure according to Khosla's creep theory, the critical gradient is

A.	zero
B.	0.25
C.	0.50
D.	0.75
E.	1.00

Answer: Option E

Explanation:

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30.

When a canal is carried over a natural drainage, the structure provided, is known as

A.	syphon
B.	aqueduct
C.	super passage
D.	syphon-aqueduct.

Answer: Option B

Explanation:

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31.

In a Sarda type fall, the rectangular crest, may be used for discharge upto

A.	6 cumecs
B.	10 cumecs
C.	14 cumecs
D.	20 cumecs
E.	25 cumecs.

Answer: Option C

Explanation:

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32.

Fundamental momentum equation for a hydraulic jump, is

A.
B.
C.
D.

Answer: Option B

Explanation:

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Irrigation - Section 1 (4)

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