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Fluid Mechanics

Fluid Mechanics
Laminar flow is characterised by the nonexistence of

Pressure fluctuation
All of these
Eddies
Deviating velocities

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Fluid Mechanics
Path followed by water jet issuing from the bottom of a water tank will be a

Horizontal straight line
Parabola (vertex being at the opening)
Hyperbola
Zig-zag path (which is geometrically undefined)

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Fluid Mechanics
If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is

Zero in both the tubes
Greater in 0.5 mm dia tube
Same in both the tubes
Greater in 1 mm dia tube

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Fluid Mechanics
For an unstable equilibrium of a floating body (where, M = metacentre.)

M is below G
None of these
M is above G
M & G coincide

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Fluid Mechanics
Volume of liquid displaced by a floating body is equivalent to its

Own volume
Own weight
Submerged volume
Submerged weight

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Fluid Mechanics
Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg.

1
0.001
0.01
0.1

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