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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The time oscillation of a floating body with increase in meatcentric height will be

Lower
Same
Higher
Lower/higher depending on weight of body

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Hydraulics and Fluid Mechanics in ME
A weir, generally, used as a spillway of a dam is

Broad crested weir
Submerged weir
Narrow crested weir
Ogee weir

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Hydraulics and Fluid Mechanics in ME
The speed ratio in case of Francis turbine varies from

0.15 to 0.3
0.4 to 0.5
1 to 1.5
0.6 to 0.9

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Hydraulics and Fluid Mechanics in ME
The power transmitted through the pipe is maximum when the head lost due to friction is equal to

Two-third of the total supply head
One-half of the total supply head
One-third of the total supply head
One-fourth of the total supply head

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

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Hydraulics and Fluid Mechanics in ME
The value of bulk modulus of a fluid is required to determine

Euler's number
Mach number
Froude's number
Reynold's number

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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