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In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed then
- a)The flow over the hump will be super critical
- b)The flow over the hump will be critical and the lowering of the upstream water
- c)The flow over the hump will be sub critical
- d)The flow over the hump will be critical and the up stream water surface will rise
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
In a subcritical flow in a channel ΔZ m is the maximum height of...
Flow-through hump:
- Channel is horizontal, rectangular, and frictionless.
- Since Channel is horizontal and frictionless, total energy will remain the same.
- Construction of hump at downstream of the channel reduces the specific energy by an amount equal to the height of hump ΔZ, E2 = E1 - ΔZ
- Since the flow is subcritical, depth of flow over hump reduces that is point P shift to point Q corresponding to the depth of flow y2.
- When ΔZ is equal to ΔZm (ΔZm is the minimum height of hump for critical flow or maximum height of hump for which upstream flow is not affected) then point Q corresponding to the depth of flow y2 shift to point C corresponding to the depth of flow yc, E1 = Ec + ΔZm, it means at ΔZm, the flow at downstream becomes critical and at ΔZ < ΔZm, the flow over hump remains subcritical.
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In a subcritical flow in a channel ΔZ m is the maximum height of...
, the flow velocity is less than the critical velocity. In other words, the flow is not fast enough to overcome the resistance of the channel and maintain a steady flow.
In a subcritical flow, the water surface is typically smooth and the flow is relatively calm. The water particles move in a laminar fashion, with layers of water sliding over each other.
The depth of the water in a subcritical flow is typically greater than the critical depth, which is the depth at which the flow transitions from subcritical to supercritical. The critical depth can be calculated using the specific energy equation.
Subcritical flow is commonly observed in rivers and open channels with gentle slopes. It is characterized by a gradual increase in water depth downstream, as the flow slows down and loses energy.
Understanding the type of flow, whether subcritical or supercritical, is important in hydraulic engineering and river management. It helps in determining the stability of the channel and designing structures such as bridges and culverts.
In a subcritical flow, the water surface is typically smooth and the flow is relatively calm. The water particles move in a laminar fashion, with layers of water sliding over each other.
The depth of the water in a subcritical flow is typically greater than the critical depth, which is the depth at which the flow transitions from subcritical to supercritical. The critical depth can be calculated using the specific energy equation.
Subcritical flow is commonly observed in rivers and open channels with gentle slopes. It is characterized by a gradual increase in water depth downstream, as the flow slows down and loses energy.
Understanding the type of flow, whether subcritical or supercritical, is important in hydraulic engineering and river management. It helps in determining the stability of the channel and designing structures such as bridges and culverts.
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In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer?
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In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer?.
In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer?.
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In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In a subcritical flow in a channel ΔZ m is the maximum height of a smooth hump that can be installed to cause critical flow over the hump. If a hump of height ΔZ > ΔZ m is installed thena)The flow over the hump will be super criticalb)The flow over the hump will be critical and the lowering of the upstream waterc)The flow over the hump will be sub criticald)The flow over the hump will be critical and the up stream water surface will riseCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
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