Fluid Mechanics
With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss

Remains constant
Decreases
Increases linearly
Increases

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Fluid Mechanics
The continuity equation

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

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