Discharge through a totally submerged orifice, is directly proportional to diffe

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Question
Discharge through a totally submerged orifice, is directly proportional to
Options
A. difference in elevation of water surfaces
B. square root of the difference in elevation of water surface
C. square root of the opening
D. reciprocal of the area of the opening
E. none of these.

Correct Answer

square root of the difference in elevation of water surface

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3. When the whole fluid mass rotates either due to fluid pressure or gravity or rotation previously imparted, the motion is known as
Options
A. free vortex
B. forced vortex
C. non-potential vortex
D. rotational vortex.

4. A rise or fall of liquid in a glass tube of a very small diameter when dipped is
Options
A. directly proportional to the force per unit length of periphery
B. direcly proportional to the sine of the angle of contact
C. directly proportional to the specific weight of liquid
D. inversely proportional to the diameter of the glass tube.

9. Pick up the correct statement from the following :
Options
A. The fluids which follow are known as Newtonian fluids
B. The fluids which do not follow the linear relationship between shear and rate of strain are known as non Newtonian fluids
C. The substances which flow after yield strains, are known as plastics
D. all the above.

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