Irrigation Engineering (3170609) MCQs

MCQs of DISTRIBUTION WORKS

Showing 51 to 60 out of 73 Questions
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51.

 Which of the following statement is wrong about the requirement of good lining?

(a)

The lining should be able to withstand the differential sub-soil pressure
(b)

Brick lining, concrete lining or precast slab lining can be easily repaired as compared to cast-in-situ concrete lining
(c)

The hydraulic efficiency generally reduces with time
(d)

 Brick tile lining may provide better abrasion resistance than cement concrete and boulder lining
Answer:

Option (d)

52.

 Which type of lining is adopted when the channels have become stable and no danger of scouring is expected?

(a)

 Brick lining
(b)

Single burnt clay tile lining
(c)

 In-situ cement concrete lining
(d)

 Flexible membrane lining in the bed and rigid lining on the sides
Answer:

Option (d)

53.

 On which factor does the movement of bedload depends?

(a)

Velocity of Flow
(b)

 Type of Flow
(c)

Depth of Flow
(d)

Width of the River
Answer:

Option (a)

54.

Commonly the bed load is 10% of total suspended load.

(a)

True
(b)

False
Answer:

Option (a)

55.

What type of force is completely responsible for the bedload movement?

(a)

Forces of Turbulence
(b)

 Drag Force
(c)

Capillary Force
(d)

 Gravity Force
Answer:

Option (b)

56.

Which type of force is needed for suspension of suspended load in flowing water?

(a)

Capillary Force
(b)

 Drag Force
(c)

Forces of Turbulence
(d)

Gravity Force
Answer:

Option (c)

57.

 A part of tractive force does not have any part in transporting the bed material, i. e bed load.

(a)

True
(b)

False
Answer:

Option (a)

58.

Given that the bed slope of a channel is 1 in 2000 and the discharge is 60 cumecs. The depth of the channel is fixed and is given as 2 m. The tractive force needed for the movement of bedload is? Take critical velocity ratio as 1.1.

(a)

8.89 N/m3
(b)

8.87 N/m3
(c)

8.85 N/m3
(d)

 8.83 N/m3
Answer:

Option (d)

59.

 What cause is prime responsible for the heavy movement of water from main canal to branch canal?

(a)

Existence of Favorable Gradient
(b)

 Velocity of Flow
(c)

Type of Flow
(d)

Depth of the Canal
Answer:

Option (a)

60.

lacy's regime theory is valid for

(a)

lined canal
(b)

unlined canal
(c)

Alluvial canal
(d)

Non-allluvial canal
Answer:

Option (c)

Showing 51 to 60 out of 73 Questions
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