Irrigation Engineering (3170609) MCQs

MCQs of DISTRIBUTION WORKS

Showing 61 to 70 out of 73 Questions
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61.

 Water in which condition or state carry a maximum amount of sediment?

(a)

 Uniform State
(b)

Vapor State
(c)

Floods
(d)

Ice
Answer:

Option (c)

62.

What minimum value of shear stress is needed to move the sediment?

(a)

Critical Velocity Ratio
(b)

Critical Shear Stress
(c)

 Critical Velocity
(d)

 Drag Force
Answer:

Option (b)

63.

A lined canal costs about 2 to 2.5 times as much as the unlined canal.

(a)

True
(b)

False
Answer:

Option (a)

64.

The capacity of the channel is a function of velocity.

(a)

True
(b)

False
Answer:

Option (a)

65.

What is the range of value of Manning’s coefficient for straight alignment for cast in-situ concrete lining?

(a)

0.012 – 0.015
(b)

0.015 – 0.018
(c)

0.018 – 0.020
(d)

0.020 – 0.025
Answer:

Option (b)

66.

Lining decreases the channel capacity and consequently reduces the required channel section.

(a)

True
(b)

False
Answer:

Option (b)

67.

Removal of silt considerably reduces the annual expenditure required on unlined channels for desilting.

(a)

True
(b)

False
Answer:

Option (a)

68.

Which of the following statement is wrong?

(a)

A lined canal is not susceptible to erosion
(b)

The provision of adequate lining reduces the danger of breaches of channel
(c)

The lining does not reduce the money spent in removing weeds
(d)

 Lining eliminates flood dangers
Answer:

Option (c)

69.

Which of the following statement is wrong?

(a)

The velocity varies inversely with the Manning’s coefficient
(b)

For unlined channels in good condition, the value of Manning’s coefficient is 0.015 for concrete
(c)

Flatter slopes can be provided without silting on a lined channel
(d)

 The lining does not help to bring high areas under the command
Answer:

Option (d)

70.

In soil-cement lining the Portland cement is added to the soil up to the extent of ____________

(a)

4% to 5%
(b)

2% to 8%
(c)

0.1% to 5%
(d)

> 10%
Answer:

Option (b)

Showing 61 to 70 out of 73 Questions
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