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A 1m wide rectangular channel carries a discharge of 2.99 m3/s. From the specific energy-depth diagram, it is seen that the corresponding to a particular specific energy, the sub-critical depth is twice the super-critical depth. The super-critical depth in metres up-to two decimals is equal to
  • a)
    1 m
  • b)
    1.1 m
  • c)
    0.55 m
  • d)
    2.2 m
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A 1m wide rectangular channel carries a discharge of 2.99 m3/s. From ...
Given data,
B = 1m, Q = 2.99 m3/s q = Q/B = 2.99/1 = 2.99 m3/s/m
Let y1 = sub-critical depth
& y2 = super-critical depth
Such that y2 = 2y1
From the momentum equation, we have
Y2 = -y1/2 + [(y1/2)2 + 2q2/gy1]1/2
2y1 = -y1/2 + [(y1/2)2 + 2(2.99)2 / 9.81y1]1/2
5/2(y1) = [(y1/2)2 + 2(2.99)2 / 9.81y1]1/2
On solving we get,
Y1 = 0.55 m.
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A 1m wide rectangular channel carries a discharge of 2.99 m3/s. From the specific energy-depth diagram, it is seen that the corresponding to a particular specific energy, the sub-critical depth is twice the super-critical depth. The super-critical depth in metres up-to two decimals is equal toa)1 mb)1.1 mc)0.55 md)2.2 mCorrect answer is option 'C'. Can you explain this answer?
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A 1m wide rectangular channel carries a discharge of 2.99 m3/s. From the specific energy-depth diagram, it is seen that the corresponding to a particular specific energy, the sub-critical depth is twice the super-critical depth. The super-critical depth in metres up-to two decimals is equal toa)1 mb)1.1 mc)0.55 md)2.2 mCorrect answer is option 'C'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A 1m wide rectangular channel carries a discharge of 2.99 m3/s. From the specific energy-depth diagram, it is seen that the corresponding to a particular specific energy, the sub-critical depth is twice the super-critical depth. The super-critical depth in metres up-to two decimals is equal toa)1 mb)1.1 mc)0.55 md)2.2 mCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 1m wide rectangular channel carries a discharge of 2.99 m3/s. From the specific energy-depth diagram, it is seen that the corresponding to a particular specific energy, the sub-critical depth is twice the super-critical depth. The super-critical depth in metres up-to two decimals is equal toa)1 mb)1.1 mc)0.55 md)2.2 mCorrect answer is option 'C'. Can you explain this answer?.
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