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.Management Sciences
Category: Hydraulics and Fluid Mechanics
The atmospheric pressure with rise in altitude decreases____________________?
A. linearly
B. first slowly and then steeply
C. first steeply and then gradually
D. unpredictable
E. none of the above
To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than_______________?
A. 2.4 m above the hydraulic gradient
B. 6.4 m above the hydraulic gradient
C. 10.0 m above the hydraulic gradient
D. 5.0 above the hydraulic gradient
E. none of the above
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be ___________________?
A. 2 meters of water column
B. 3 meters of water column
C. 3.5 meters of water column
D. 4 m of water column
E. none of the above
Normal depth in open channel flow is the depth of flow corresponding to_______________?
A. steady flow
B. unsteady flow
C. laminar flow
D. uniform flow
E. critical flow
Surface energy per unit area of a surface is numerically equal to ___________________?
A. atmospheric pressure
B. surface tension
C. force of adhesion
D. force of cohesion
E. viscosity
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its_______________?
A. specific weight
B. specific mass
C. specific gravity
D. specific density
E. none of the above
The continuity equation is connected with_______________?
A. viscous/unviscous fluids
B. compressibility of fluids
C. conservation of mass
D. steady/unsteady flow
E. open channel/pipe flow
The region between the separation streamline and the boundary surface of the solid body is known as_________________?
A. wake
B. drag
C. lift
D. boundary layer
E. aerofoil section
The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be___________________?
A. 500 kg
B. 1000 kg
C. 1500 kg
D. 2000 kg
E. 4000 kg
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