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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The units of viscosity are

newton-sec/metre
newton-sec/metre2
metre2/se
kg sec/metre

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific speed
specific volume
specific weight
specific gravity

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Hydraulics & Fluid Mechanics
The increase in meta centric height i) increases stability ii) decreases stability iii) increases comfort for passengers iv) decreases comfort for passengers The correct answer is

(ii) and (iii)
(i) and (iv)
(ii) and (iv)
(i) and (iii)

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Hydraulics & Fluid Mechanics
THE THEORETICAL VALUE OF COEFFICIENT OF CONTRACTION OF A SHARP EDGED ORIFICE IS

1.01
0.86
0.611
0.95

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Hydraulics & Fluid Mechanics
An open vessel of water is accelerated up an inclined plane. The free water surface will

any one of above is possible
be horizontal
make an angle in direction of inclination of inclined plane
make an angle in opposite direction to inclination of inclined plane

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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
increase/decrease depending on depth of immersion
remain same

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