Deck 12: Water Circulation and Irrigation

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Question
The earth's water circulatory system, is known as

A)water cycle
B)hydrologic cycle
C)precipitation cycle
D)all of these
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Question
The discharge (Q) over trapezoidal crest of Sarda fall is

A)same
B)less
C)more
Question
The channel after attaining its section and longitudinal slope, will be said to be in

A)initial
B)final
C)permanent
Question
The ratio of the hed recovered to the head put in an outlet, is called

A)proportionality
B)flexibility
C)sensitivity
D)efficiency
Question
A diversion head work is constructed to

A)raise water level at the head of the canal
B)regulate the intake of water into the canal
C)reduce fluctuations in the supply level of the river
D)all of the above
Question
Irrigation canals are generally aligned along

A)contour line
B)water shed
C)straight line
D)valley line
Question
Kennedy gave his own formula for the determination of mean velocity.
Question
When the water is thrown into a well over a crest from where it escapes near its bottom, the type of fall is called

A)rapid fall
B)cylinder fall
C)pipe fall
D)glacis fall
Question
Cyclonic precipitation results from

A)lifting of air masses converging into low pressure area
B)natural rising of warmer, lighter air in colder and denser surrondings
C)lifting of warm moisture-laden air masses due to topographic barriers
D)all of the above
Question
Which of the following statement is wrong?

A)In a trapezoidal notch fall, the top width of the notch is kept between 3/4th to full water depth above the sill of the notch.
B)The energy dissipation takes palce by the provision of roughening devices.
C)The siphon fall is designed to maintain a fixed supply level in the channel.
D)Energy dissipators are provided for small discharges.
Question
The gaps created in the bank of a canal is called a breach.
Question
In Lane's weighted creep theory, he proposed a weight of

A)three for vertical creep and one for horizontal creep
B)three for horizontal creep and one for vertical creep
C)two for vertical and two for horizontal creep
D)any one of the above
Question
Escapes are also known as

A)outlet
B)safety valves
C)regulators
Question
Inundation canals draw their supplies from rivers whenever there is a

A)low
B)high
C)medium
Question
The setting for a hyper-proportional outlet is

A)more
B)same
Question
The method of irrigation used for orchards is

A)free flooding
B)border flooding
C)check flooding
D)basin flooding
Question
For a canal which irrigate the area directly, the fall should be provided at a location where the F.S.L. outstrips the gound level, but before the bed of the canal comes into filling.
Question
The ratio of the head recovered to the head put in an outlet, is called

A)proportionality
B)flexibility
C)sensitivity
D)efficiency
Question
Lining of a canal is necessary

A)to minimise the seepage lossses in canal
B)to prevent erosion of bed and sides due to high velocities
C)to increase the discharge in canal section by increasing the velocity
D)all of the above
Question
The movement of water through the soil surface into the soil, is called infilteration.
Question
Consumptive use of water by a crop is equal to

A)the depth of water consumed by evaporation
B)the depth of water consumed by transpiration
C)the depth of water consumed by evaporation and transpiration during crop growth, including water consumed by accompanying weed growth
D)none of the above
Question
The duty of irrigation water goes on

A)increasing
B)decreasing
Question
Which of the following is the correct sequence of the parts of a canal system?

A)Head works, distributary, branch canals and minor.
B)Head works, main canal, branch canal, distributary and minor.
C)Head works, main canal, branch canal, minor and distributary.
D)none of the above
Question
The alignment of a canal

A)should be such, so as to ensure minimum number of cross drainage works
B)on a water shed is the most economical
C)should avoid valuable properties
D)all of the above
Question
The berms provide additional strength to banks and thus make it safe against breaches.
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Deck 12: Water Circulation and Irrigation
1
The earth's water circulatory system, is known as

A)water cycle
B)hydrologic cycle
C)precipitation cycle
D)all of these
hydrologic cycle
2
The discharge (Q) over trapezoidal crest of Sarda fall is

A)same
B)less
C)more
more
3
The channel after attaining its section and longitudinal slope, will be said to be in

A)initial
B)final
C)permanent
final
4
The ratio of the hed recovered to the head put in an outlet, is called

A)proportionality
B)flexibility
C)sensitivity
D)efficiency
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k this deck
5
A diversion head work is constructed to

A)raise water level at the head of the canal
B)regulate the intake of water into the canal
C)reduce fluctuations in the supply level of the river
D)all of the above
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Unlock for access to all 25 flashcards in this deck.
Unlock Deck
k this deck
6
Irrigation canals are generally aligned along

A)contour line
B)water shed
C)straight line
D)valley line
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k this deck
7
Kennedy gave his own formula for the determination of mean velocity.
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8
When the water is thrown into a well over a crest from where it escapes near its bottom, the type of fall is called

A)rapid fall
B)cylinder fall
C)pipe fall
D)glacis fall
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k this deck
9
Cyclonic precipitation results from

A)lifting of air masses converging into low pressure area
B)natural rising of warmer, lighter air in colder and denser surrondings
C)lifting of warm moisture-laden air masses due to topographic barriers
D)all of the above
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Unlock for access to all 25 flashcards in this deck.
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k this deck
10
Which of the following statement is wrong?

A)In a trapezoidal notch fall, the top width of the notch is kept between 3/4th to full water depth above the sill of the notch.
B)The energy dissipation takes palce by the provision of roughening devices.
C)The siphon fall is designed to maintain a fixed supply level in the channel.
D)Energy dissipators are provided for small discharges.
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k this deck
11
The gaps created in the bank of a canal is called a breach.
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12
In Lane's weighted creep theory, he proposed a weight of

A)three for vertical creep and one for horizontal creep
B)three for horizontal creep and one for vertical creep
C)two for vertical and two for horizontal creep
D)any one of the above
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13
Escapes are also known as

A)outlet
B)safety valves
C)regulators
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k this deck
14
Inundation canals draw their supplies from rivers whenever there is a

A)low
B)high
C)medium
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15
The setting for a hyper-proportional outlet is

A)more
B)same
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16
The method of irrigation used for orchards is

A)free flooding
B)border flooding
C)check flooding
D)basin flooding
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Unlock for access to all 25 flashcards in this deck.
Unlock Deck
k this deck
17
For a canal which irrigate the area directly, the fall should be provided at a location where the F.S.L. outstrips the gound level, but before the bed of the canal comes into filling.
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Unlock for access to all 25 flashcards in this deck.
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k this deck
18
The ratio of the head recovered to the head put in an outlet, is called

A)proportionality
B)flexibility
C)sensitivity
D)efficiency
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k this deck
19
Lining of a canal is necessary

A)to minimise the seepage lossses in canal
B)to prevent erosion of bed and sides due to high velocities
C)to increase the discharge in canal section by increasing the velocity
D)all of the above
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k this deck
20
The movement of water through the soil surface into the soil, is called infilteration.
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k this deck
21
Consumptive use of water by a crop is equal to

A)the depth of water consumed by evaporation
B)the depth of water consumed by transpiration
C)the depth of water consumed by evaporation and transpiration during crop growth, including water consumed by accompanying weed growth
D)none of the above
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Unlock for access to all 25 flashcards in this deck.
Unlock Deck
k this deck
22
The duty of irrigation water goes on

A)increasing
B)decreasing
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Unlock Deck
k this deck
23
Which of the following is the correct sequence of the parts of a canal system?

A)Head works, distributary, branch canals and minor.
B)Head works, main canal, branch canal, distributary and minor.
C)Head works, main canal, branch canal, minor and distributary.
D)none of the above
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24
The alignment of a canal

A)should be such, so as to ensure minimum number of cross drainage works
B)on a water shed is the most economical
C)should avoid valuable properties
D)all of the above
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25
The berms provide additional strength to banks and thus make it safe against breaches.
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