HYDRAULICS AND FLUID MECHANICS IN ME QUIZ

Critical velocity

Velocity of approach

Super-sonic velocity

Sub-sonic velocity

8 to 16

16 to 24

2 to 4

4 to 8

atmospheric pressure

very low pressure

difference of pressure between two points

pressure in pipes, channels etc

All of the listed here

Adhesion of the liquid molecules and the molecules on the surface of a solid

Surface tension

Cohesion of the liquid

Three to four times

Five to six times

Equal to

Double

Metacentre

Centre of pressure

Centre of buoyancy

None of the listed here

(8/15) Cd. 2g. H²

(8/15) Cd. 2g. H

(8/15) Cd. 2g. H3/2

(8/15) Cd. 2g. H5/2

None of these

10m

1 m

100m

0.5 a. √2gH

0.707 a. √2gH

0.855 a. √2gH

√2gH

Decreases as the square of the radial distance

Increases linearly as its radial distance

Varies as the square of the radial distance

Increases as the square of the radial distance