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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
THEE HORIZONTAL COMPONENT OF BUOYANT FORCE IS

None of these
SAME AS BUOYANT FORCE
ZERO
NEGLIGIBLE

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Hydraulics & Fluid Mechanics
Drag force is a function of i) projected area of the body ii) mass density of the fluid iii) velocity of the body The correct answer is

(i) and (iii)
(i), (ii) and (iii)
(i) and (ii)
(ii) and (iii)

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Hydraulics & Fluid Mechanics
When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies

linearly with radial distance
inversely as the radial distance
inversely as the square of the radial distance
as the square of the radial distance

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Hydraulics & Fluid Mechanics
The resultant of all normal pressures acts

at metacentre
vertically upwards
at center of pressure
at e.g. of body

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Hydraulics & Fluid Mechanics
An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is

10.2/m sec
9.81 m/sec²
9.75 m/sec²
10m/sec²

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Hydraulics & Fluid Mechanics
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

10.0 m above the hydraulic gradient
2.4 m above the hydraulic gradient
6.4 m above the hydraulic gradient
5.0 above the hydraulic gradient

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