Hydraulics & Fluid Mechanics
A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will

increase/decrease depending on depth of immersion
decrease
remain same
increase

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Hydraulics & Fluid Mechanics
Fluid is a substance that

cannot be subjected to shear forces
has the same shear stress.at a point regardless of its motion
cannot remain at rest under action of any shear force
always expands until it fills any container

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Hydraulics & Fluid Mechanics
The horizontal component of force on a curved surface is equal to the

force on a vertical projection of the curved surface
force on the horizontal projection of the curved surface
weight of liquid vertically above the curved surface
product of pressure intensity at its centroid and area

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Hydraulics & Fluid Mechanics
Steady flow occurs when

the magnitude and direction of the velocity do not change from point to point in the fluid
the direction and magnitude of the velocity at all points are identical
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time

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