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Questions and Answers
Turnouts are constructed in the bed of a canal.
Turnouts are constructed in the bed of a canal.
False (B)
Chutes are used where there are small differences in the elevation of the canal.
Chutes are used where there are small differences in the elevation of the canal.
False (B)
Checks are used to lower the water level in the ditch.
Checks are used to lower the water level in the ditch.
False (B)
A division box is used to divide or direct the flow of water between two or more canals or ditches.
A division box is used to divide or direct the flow of water between two or more canals or ditches.
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Drop structures allow the water to flow gradually from a higher section of the canal to a lower one.
Drop structures allow the water to flow gradually from a higher section of the canal to a lower one.
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Distribution control structures are used to carry irrigation water across roads, hillsides, and natural depressions.
Distribution control structures are used to carry irrigation water across roads, hillsides, and natural depressions.
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A rectangular weir has a triangular notch.
A rectangular weir has a triangular notch.
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The converging section of a Parshall flume is located at the downstream end.
The converging section of a Parshall flume is located at the downstream end.
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The cut-throat flume has a constricted or throat section.
The cut-throat flume has a constricted or throat section.
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The weir can be made of timber, metal, or concrete.
The weir can be made of timber, metal, or concrete.
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The water depth readings for a Parshall flume are always taken on two scales simultaneously.
The water depth readings for a Parshall flume are always taken on two scales simultaneously.
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The cut-throat flume has a more complex design than the Parshall flume.
The cut-throat flume has a more complex design than the Parshall flume.
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Earthen canals require less maintenance compared to lined canals
Earthen canals require less maintenance compared to lined canals
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Lined canals are more cost-effective than earthen canals
Lined canals are more cost-effective than earthen canals
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Erosion control structures are used to distribute water to different branches of the canal system
Erosion control structures are used to distribute water to different branches of the canal system
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Asphaltic concrete is a common material used for lining canals
Asphaltic concrete is a common material used for lining canals
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Water measurement structures are used to regulate the flow of water in canals
Water measurement structures are used to regulate the flow of water in canals
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Earthen canals do not require any maintenance to prevent weed growth
Earthen canals do not require any maintenance to prevent weed growth
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