An open tank containing liquid is made to move from rest with a uniform acceleration. The angle 0 which the free surface of liquid makes with the horizontal is such that (where a = Horizontal acceleration of the tank and g = Acceleration due to gravity)
A. $$\tan \theta = \frac{{\text{a}}}{{\text{g}}}$$
B. $$\tan \theta = \frac{{2{\text{a}}}}{{\text{g}}}$$
C. $$\tan \theta = \frac{{\text{a}}}{{2{\text{g}}}}$$
D. $$\tan \theta = \frac{{{{\text{a}}^2}}}{{2{\text{g}}}}$$
Answer: Option A
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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