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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific volume
specific speed
specific gravity
specific weight

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Hydraulics & Fluid Mechanics
The line of action of the buoyant force acts through the centroid of the

volume of the fluid vertically above the body
volume of the floating body
submerged body
displaced volume of the fluid

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Hydraulics & Fluid Mechanics
Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is

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

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Hydraulics & Fluid Mechanics
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

1 PA
9810 PA
91 PA
981 PA

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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

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

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Hydraulics & Fluid Mechanics
Ay between two stream lines represents

pressure
velocity
discharge
head

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