A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
E. none of the above
Related Mcqs:
- Ratio of inertia force to elastic force is known as__________________?
A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
E. none of the above - A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is____________________?
A. 9,000 kg
B. 13,500 kg
C. 18,000 kg
D. 27,000 kg
E. 30,000 kg - If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be_________________?
A. 2 meters of water column
B. 3 meters of water column
C. 5 meters of water column
D. 6 meters of water Column
E. 7 meters of water column - 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 metres of water column
B. 3 metres of water column
C. 3.5 metres of water column
D. 4 m of water column
E. none of the above - 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 - 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 - If the surface of liquid is convex, men ___________________?
A. cohesion pressure is negligible
B. cohesion pressure is decreased
C. cohesion pressure is increased
D. there is no cohesion pressure
E. none of the above - Free surface of a liquid tends to contract to the smallest possible area due to force of_______________?
A. surface tension
B. viscosity
C. friction
D. cohesion
E. adhesion - The upper surface of a weir over which water flows is known is_____________________?
A. crest
B. nappe
C. sill
D. weir top
E. contracta - 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
