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Hydraulics and Fluid Mechanics in ME

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

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

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

momentum
energy
mass
work

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Hydraulics and Fluid Mechanics in ME
The torque required to overcome viscous resistance of a footstep bearing is (where μ = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)

μπ²NR/60t
μπ²NR⁴/60t
μπ²NR²/60t
μπ²NR³/60t

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Hydraulics and Fluid Mechanics in ME
Guide angle as per the aerofoil theory of Kaplan turbine blade design is defined as the angle between

Lift and drag
Lift and resultant force
Drag and resultant force
Lift and tangential force

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Hydraulics and Fluid Mechanics in ME
The major loss of energy in long pipes is due to

gradual contraction or enlargement
friction
sudden contraction
sudden enlargement

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Hydraulics and Fluid Mechanics in ME
The pressure at a point in a fluid will not be same in all the directions when the fluid is

moving
inviscous and moving
viscous
viscous and moving.

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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