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Fluid Mechanics

Fluid Mechanics
For an incompressible fluid, the bulk modulus of elasticity is

5 kg/m³
0 N/m
1 N
∞ N/m²

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Fluid Mechanics
The pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is Δp. If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be

Δp/2
Δp
2Δp
Δp²

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Fluid Mechanics
Curve III in the above diagram represents a/an

None of these
Pseudo plastic fluid
Ideal plastic
Dilatent fluid

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Fluid Mechanics
Which of the following must be followed by the flow of a fluid (real or ideal)? (I) Newton's law of viscosity. (II) Newton's second law of motion. (III) The continuity equation. (IV) Velocity of boundary layer must be zero relative to boundary. (V) Fluid cannot penetrate a boundary.

I, II, V
II, III, V
II, IV, V
I, II, III

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Fluid Mechanics
For pipes that must be broken at intervals for maintenance, the connector used should be a/an

Reducer
Union
Tee
Elbow

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Fluid Mechanics
Delivery of insufficient quantity of liquid by a pump may be caused by

Low rpm
Too high a lift
All of these
Air leak in the inlet

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