The line traced by a single fluid particle as it moves over a period of time is known as
A.Line of force
B.Filament line
C.Flow line
D.Path line
E.Streak line
Category: Fluid Mechanics and Hydraulic Machines Mcqs
Undershot water wheels are those on which water acts
A.Purely by impulse
B.Partly by impulse and partly by reaction
C.Purely by reaction
D.None of the above
A vessel containing water moves downward with a constant acceleratin equal to ‘q’ then
A.the liquid mass will be in turbulence
B.the liquid mass will be under a pressure below the atmospheric pressure
C.the liquid mass will be under a pressure double the atmospheric pressure
D.the pressure throughout the liquid mass will be atmospheric
The most popular generation voltage in hydro-electric power stations in India is
A.220 V
B.440 V
C.6600 V
D.11000 V
E.440 kV
A cylinder is kept on a horizontal boundary past which an ideal fluid flows perpendicular to cylinder axis. It will then experience
A.No lift force
B.Some lift force
C.Lift force in vertically downward direction
D.Lift force in vertically upward direction
E.Lift force depends on velocity of flow and mass of cylinder and its contents
Bernoulli’s theorem deals with the principle of conservation of
A.Energy
B.Momentum
C.Mass
D.Force
E.Hydraulic pressure
Specific speed (metric) = k x specific (FPS) where k has the value of
A.1
B.1.75
C.2.37
D.0.67
E.0.41
The ratio of inertia force to pressure forces is related with a non-dimensional number known as
A.Reyonolds number
B.Euler number
C.Nusselt number
D.Mach number
E.Weber number
Specific speed of a impulse turbine ranges from
A.0 – 4.5
B.100 – 140
C.100 – 200
D.200 – 300
E.300 – 800
