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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Operation of McLeod gauge used for low pressure measurement is based on the principle of

gas law
Pascal’s law
Boyle’s law
Charle’s law

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Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

lift
wake
boundary layer
drag

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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
increase/decrease depending on depth of immersion
remain same
decrease

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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

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

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Hydraulics & Fluid Mechanics
A perfect gas

has constant viscosity
is of theoretical interest
is incompressible
None of these

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Hydraulics & Fluid Mechanics
Flow of water in a pipe about 3 meters in diameter can be measured by

rotameter
venturi
orifice plate
pitot tube

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