Exercise: Hydraulics And Fluid Mechanics

Questions for: Hydraulics And Fluid Mechanics

A glass tube of small diameter (d) is dipped in fluid. The height of rise or fall in the tube given by (where w = Specific weight of liquid, α = Angle of contact of the liquid surface, and σ = Surface tension)
A:
B:
C:
D:
Answer: C
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The metacentric height is the distance between the
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
Answer: B
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The line of action of the force of buoyancy acts through the centre of gravity of the volume of the liquid displaced.
A:
True
B:
False
C:
D:
Answer: A
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A venturiflume is used to measure
A:
pressure of liquid
B:
discharge of liquid
C:
pressure difference between two points in a channel
D:
pressure difference between two points in a pipe
Answer: B
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The pressure measured with the help of a pressure gauge is called
A:
atmospheric pressure
B:
gauge pressure
C:
absolute pressure
D:
mean pressure
Answer: B
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