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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Free surface of a liquid tends to contract to the smallest possible area due to force of

friction
viscosity
cohesion
surface tension

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Hydraulics & Fluid Mechanics
Normal depth in open channel flow is the depth of flow corresponding to

unsteady flow
Steady flow
uniform flow
laminar flow

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Hydraulics & Fluid Mechanics
Two pipe systems are said to be equivalent when

friction factor and length are same in two systems
length and diameter are same in two systems
head loss and discharge are same in two systems
length of pipe and discharge are same in two systems

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Hydraulics & Fluid Mechanics
A vertical rectangular plane surface is submerged in water such that its top and bottom surfaces are 1.5 m and 6.0 m res-pectively below the free surface. The position of center of pressure below the free surface will be at a distance of

4.2 M
4.0 M
4.8 M
4.6 M

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Hydraulics & Fluid Mechanics
Which of the following is demensionless

specific gravity
specific speed
specific volume
specific weight

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Hydraulics & Fluid Mechanics
The resultant of all normal pressures acts

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

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MORE MCQ ON Hydraulics & Fluid Mechanics

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