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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following manometer has highest sensitivity

inclined U-tube
micro-manometer with water
U-tube with mercury
U-tube with water

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Hydraulics and Fluid Mechanics in ME
Euler’s dimensionless number relates the following

viscous force and buoyancy force
inertial force and gravity
pressure force and inertial force
viscous force and inertial force

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Hydraulics and Fluid Mechanics in ME
The height of a water column equivalent to a pressure of 0.15 MPa is

35.3 m
45.3 m
25.3 m
15.3 m

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Hydraulics and Fluid Mechanics in ME
A square surface 3 m × 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is

18,000 kg
13,500 kg
27,000 kg
9,000 kg

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Hydraulics and Fluid Mechanics in ME
Principle of similitude forms the basis of

comparing similarity between design and actual equipment
designing models so that the result can be converted to prototypes
hydraulic designs
comparing two identical equipments

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Hydraulics and Fluid Mechanics in ME
According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions)

(2/3) × Cd (L - nH) × √(2g) × H²
(2/3) × Cd (L - nH) × √(2g) × H5/2
(2/3) × Cd (L - 0.1nH) × √(2g) × H3/2
(2/3) × Cd (L - nH) × √(2gh)

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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