Exercise: Hydraulics

Questions for: Hydraulics

A steady uniform flow is through
A:
a long pipe at decreasing rate
B:
a long pipe at constant rate
C:
an expanding tube at constant rate
D:
an expanding tube at increasing rate
Answer: B
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The height of water level in a tank above the centre of a circular hole 2.5 cm in diameter is 50 m. The velocity of water flowing through the hole, is
A:
31.1 m/sec
B:
31.2 m/sec
C:
31.3 m/sec
D:
31.4 m/sec.
Answer: C
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Euler's equation for the motion of liquids assumes that
A:
fluid is viscous
B:
fluid is homogeneous and incompressible
C:
velocity of flow is non-uniform over the section
D:
flow is unsteady along the stream line.
Answer: B
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In flow, the liquid particles may possess
A:
potential energy
B:
kinetic energy
C:
pressure energy
D:
all the above.
Answer: D
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The terminal velocity (v) of a sphere of radius r and specific weight W, which travels vertically downwards in a liquid of viscosity μ and specific weight W, is
A:
B:
C:
D:
Answer: B
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