A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury?
0.5
0.4
0.515
0.5
Correct Answer :
C. 0.515
Related Questions
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100 litres
250 litres
500 litres
1000 litres
Non uniform flow occurs when
The direction and magnitude of the velocity at all points are identical
The velocity of successive fluid particles, at any point, is the same at successive periods of time
Velocity, depth, pressure, etc. change from point to point in the fluid flow.
The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane
In a free nappe,
The pressure below the nappe is atmospheric
The pressure below the nappe is negative
The pressure above the nappe is atmospheric
The pressure above the nappe is negative
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Uniform flow
Steady flow
Turbulent flow
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Remain same
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Increases
None of these
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Planes of the body are completely smooth
Space around the body is completely filled with the fluid
Fluid particles do not exert any influence on one another
All of the above
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tanθ = a/g
tanθ = 2 a/g
tanθ = a/2g
tanθ = a2/2g
In open channels, the specific energy is the
Total energy per unit discharge
Total energy measured with respect to the datum passing through the bottom of the channel
Total energy measured above the horizontal datum
Kinetic energy plotted above the free surface of water
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33.3 kN
35.3 kN
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N-m/s2
N-s/m2
Poise
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0° K
4° C
100° C
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Velocity
(Velocity)2
(Velocity)3
(Velocity)4
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Narrow-crested weir
Broad-crested weir
Ogee weir
Submerged weir
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Rectangular
Triangular
Trapezoidal
Circular
Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as
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Drag
Stagnation pressure
Bulk modulus
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Force of adhesion
Force of cohesion
Force of friction
Force of diffusion
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Venturimeter
Orifice plate
Hot wire anemometer
Pitot tube
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It provides suitable meniscus for the inclined tube
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5 mm
10 mm
20 mm
30 mm
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Sink to bottom
Float over fluid
Partly immersed
Be fully immersed with top surface at fluid surface
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The body A is more stable than body B
The body B is more stable than body A
The bodies A and B are unstable
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Less than
More than
Equal to
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Buoyancy
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Surface tension
Cohesion
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h
wh
w/h
h/w
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Less than 2000
Between 2000 and 2800
More than 2800
None of these
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Steady
Unsteady
Uniform
Laminar
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One-fourth of the total supply head
One-third of the total supply head
One-half of the total supply head
Two-third of the total supply head
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Double
Four times
Eight times
Sixteen times