When the end contractions of the weir are suppressed, then number of end contrac

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Question
When the end contractions of the weir are suppressed, then number of end contractions (n) are taken as zero
Options
A. Agree
B. Disagree

Correct Answer

Agree

Hydraulics and Fluid Mechanics problems

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2. The metacentric height is the distance between the
Options
A. centre of gravity of the floating body and the centre of buoyancy
B. centre of gravity of the floating body and the metacentre
C. metacentre and centre of buoyancy
D. original centre of buoyancy and new centre of buoyancy

4. When a body is placed over a liquid, it will sink down if
Options
A. gravitational force is equal to the upthrust of the liquid
B. gravitational force is less than the upthrust of the liquid
C. gravitational force is more than the upthrust of the liquid
D. none of the above

6. The hammer blow in pipes occurs when
Options
A. there is excessive leakage in the pipe
B. the pipe bursts under high pressure of fluid
C. the flow of fluid through the pipe is suddenly brought to rest by closing of the valve
D. the flow of fluid through the pipe is gradually brought to rest by closing of the valve

8. The discharge through a channel of trapezoidal section is maximum when
Options
A. width of channel at the top is equal to twice the width at the bottom
B. depth of channel is equal to the width at the bottom
C. the sloping side is equal to half the width at the top
D. the sloping side is equal to the width at the bottom

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