Fluid Mechanics
Very small pressure difference (< 5 mm water coloumn) can be most conveniently measured by a/an __________ manometer.

Inclined tube mercury
U-tube mercury
Inclined tube water
U-tube water

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Fluid Mechanics
The continuity equation

Relates mass flow rate along a stream tube
None of these
Stipulates that Newton's second law of motion must be satisfied at every point in the fluid
Relates work and energy

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