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Fluid Mechanics

Fluid Mechanics
Unit of mass velocity is

Kg/hr
Kg/m³. hr
Kg/m²
Kg/m². hr

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

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Fluid Mechanics
Unsteady uniform flow is represented by flow through a/an

Long pipe at decreasing rate
Expanding tube at constant rate
Expanding tube at increasing rate
Long pipe at constant rate

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Fluid Mechanics
Dimension of kinematic viscosity is

MLT⁻¹
L² . T⁻²
L² . T⁻¹
L²T

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Fluid Mechanics
The __________ pressure is measured by a static tube.

Dynamic
None of these
Total
Static

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Fluid Mechanics
Design of the casing of centrifugal pump should be such as to minimise the

Loss of static head
None of these
Loss of kinetic head
Back flow through impeller

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