1. A drainage coefficient varies with (a) type of soil. (b) type of crop. (c) degree of surface drainage. (d) amount of rainfall. (e) all of these. (f) none of these 2. In a syphon aqueduct, (a) drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough. (b) drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough. (c) canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough. (d) canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough 3. The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called (a) syphon. 4. The level of the floor of a syphon aqueduct can be obtained (a) by subtracting the depth of the culvert from the canal bed level. (b) by subtracting the thickness of culvert plus the depth of the culvert from the canal bed level. (c) both (a) and (b). (b) super passage. (c) super aqueduct. (d) syphon aqueduct. (d) none of these 5. In a canal syphon, the flow is (a) under atmospheric pressure. (b) pipe flow. (c) with critical velocity. (d) under negative pressure 6. Which of the following is an advantage of tile drainage? (a) It decreases the volume of soil from which the roots can obtained food. (b) It decreases air circulation. (c) It removes the free gravity water that is not directly available to the plants. (d) It decreases bacterial activity
1. A drainage coefficient varies with (a) type of soil. (b) type of crop. (c) degree of surface drainage. (d) amount of rainfall. (e) all of these. (f) none of these 2. In a syphon aqueduct, (a) drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough. (b) drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough. (c) canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough. (d) canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough 3. The structure constructed to allow drainage water to flow under pressure through an inverted syphon below a canal, is called (a) syphon. 4. The level of the floor of a syphon aqueduct can be obtained (a) by subtracting the depth of the culvert from the canal bed level. (b) by subtracting the thickness of culvert plus the depth of the culvert from the canal bed level. (c) both (a) and (b). (b) super passage. (c) super aqueduct. (d) syphon aqueduct. (d) none of these 5. In a canal syphon, the flow is (a) under atmospheric pressure. (b) pipe flow. (c) with critical velocity. (d) under negative pressure 6. Which of the following is an advantage of tile drainage? (a) It decreases the volume of soil from which the roots can obtained food. (b) It decreases air circulation. (c) It removes the free gravity water that is not directly available to the plants. (d) It decreases bacterial activity
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter16: Highway Drainage
Section: Chapter Questions
Problem 23P
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Transcribed Image Text:1. A drainage coefficient varies with
(a) type of soil. (b) type of crop. (c) degree of surface drainage. (d) amount of rainfall.
(e) all of these. (f) none of these
2. In a syphon aqueduct,
(a) drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage
trough.
(b) drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage
trough.
(c) canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal
trough.
(d) canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal
trough
3. The structure constructed to allow drainage water to flow under pressure through an inverted
syphon below a canal, is called
(a) syphon.
4. The level of the floor of a syphon aqueduct can be obtained
(a) by subtracting the depth of the culvert from the canal bed level.
(b) by subtracting the thickness of culvert plus the depth of the culvert from the canal bed level.
(c) both (a) and (b).
(b) super passage.
(c) super aqueduct.
(d) syphon aqueduct.
(d) none of these
5. In a canal syphon, the flow is
(a) under atmospheric pressure. (b) pipe flow. (c) with critical velocity. (d) under negative
pressure
6. Which of the following is an advantage of tile drainage?
(a) It decreases the volume of soil from which the roots can obtained food.
(b) It decreases air circulation.
(c) It removes the free gravity water that is not directly available to the plants.
(d) It decreases bacterial activity
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