Exercise: Hydraulics And Fluid Mechanics

Questions for: Hydraulics And Fluid Mechanics

The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is
A:
0.0116 stoke
B:
0.116 stoke
C:
0.0611 stoke
D:
0.611 stoke
Answer: A
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The property of a liquid which controls its rate of flow is called viscosity.
A:
True
B:
False
C:
D:
Answer: A
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When the Mach number is between __________ the flow is called super-sonic flow.
A:
1 and 2.5
B:
2.5 and 4
C:
4 and 6
D:
1 and 6
Answer: D
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The increase in pressure at the outer edge of a drum of radius (r) completely filled up with liquid of density (ρ) and rotating at (ω) rad/s is
A:
ρ ω2 r2
B:
2ρ ω2 r2
C:
D:
Answer: C
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When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.
A:
sum
B:
difference
C:
arithmatic mean
D:
geometric mean
Answer: B
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