Which of the following statement is correct?
A. In a compressible flow, the volume of the flowing liquid changes during the flow
B. A flow, in which the volume of the flowing liquid does not change, is called incompressible flow
C. When the particles rotate about their own axes while flowing, the flow is said to be rotational flow
D. All of the above
Answer: Option D
A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.
A. Steady
B. Streamline
C. Turbulent
D. Unsteady
A hydraulic ram is a device used to
A. Store the energy of water
B. Increase the pressure of water
C. To lift water from deep wells
D. To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height
A. The weight of the body
B. More than the weight of the body
C. Less than the weight of the body
D. Weight of the fluid displaced by the body
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