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Fluid Mechanics

Fluid Mechanics
Lower BWG means __________ of the tube.

Inner diameter
Lower cross-section
Outer diameter
Lower thickness

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Fluid Mechanics
The drag co-efficient for a bacterium moving in water at 1 mm/s, will be of the following order of magnitude (assume size of the bacterium to be 1 micron and kinematic viscosity of water to be 10⁻⁶m²/s).

24000
0.24
24
0.44

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Fluid Mechanics
The unit of bulk modulus of elasticity for a liquid in S.I. unit is

N
N/m
N/m²
N/m³

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Fluid Mechanics
Euler's equation of motion is a statement expressing

Newton's second law of motion
Newton's first law of motion
Conservation of energy
Conservation of mass

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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

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

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Fluid Mechanics
For a stable equilibrium of a submerged body (where, G and B are centres of gravity & buoyancy respectively).

None of these
G is above B
B & G coincide
B is above G

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