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Question
Consider the following statements:
1. In an open channel flow, an energy grade line is obtained by adding the datum head, pressure head, and velocity head.
2. In an open channel, the hydraulic grade line is the free surface itself.
3. For a pipe and an open channel of source dimension, the hydraulic gradient line is located at the same height above the datum.
4. Energy gradient line of an open channel is always horizontal.
Which of these statements are correct?
Consider the following statements:
1. In an open channel flow, an energy grade line is obtained by adding the datum head, pressure head, and velocity head.
2. In an open channel, the hydraulic grade line is the free surface itself.
3. For a pipe and an open channel of source dimension, the hydraulic gradient line is located at the same height above the datum.
4. Energy gradient line of an open channel is always horizontal.
Which of these statements are correct?
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Solution
The correct option is D 1, 2 and 3
In open channel flow during flow there are losses such as frictional loss, so total energy will decrease in direction of flow. Thus energy gradient line will be horizontal.
In open channel flow during flow there are losses such as frictional loss, so total energy will decrease in direction of flow. Thus energy gradient line will be horizontal.
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