| 1. | The centre of gravity of the volume of the liquid displaced is called ? | |
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centre of pressure
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centre of buoyancy
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metacentre
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none of these
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Report Question| 2. | The flow in a pipe or channel is said to be uniform when ? | |
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the liquid particles at all sectons have the same velocities
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the liquid particles at different sections have different velocities
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the quantity of liquid flowing per second is constant
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each liquid particle has a definite path
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| 3. | A flow whose streamline is represented by a curve, is called ? | |
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one-dimensional flow
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two-dimensional flow
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three-dimensional flow
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four-dimensional flow
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| 4. | The pressure of the liquid flowing through the divergent portion of a venturimeter ? | |
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remains constant
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increases
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decreases
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depends upon mass of liquid
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| 5. | When a body, floating in a liquid, is given a small angular displacement, it starts oscillating a point known as ? | |
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centre of pressure
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centre of gravity
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centre of buoyancy
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metacentre
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| 6. | The liquid used in manometers should have ? | |
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low density
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high density
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low surface tension
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high surface tension
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| 7. | The total energy of a liquid particle in motion is equal to ? | |
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pressure energy + (kinetic energy + potential energy)
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pressure energy - (kinetic energy + potential energy)
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potential energy - (pressure energy + kinetic energy
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kinetic energy - (pressure energy + potential energy)
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| 8. | A pitot tube is used to measure the ? | |
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velocity of flow at the required point in a pipe
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pressure difference between two points in a pipe
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total pressure of liquid flowing in a pipe
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discharge through a pipe
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| 9. | A flow whose streamline is represented by a straight line, is called .......... dimensional flow. ? | |
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one
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two
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three
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four
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| 10. | The metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select correct statement ? | |
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The bodies A and B have equal stability
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The body A is more stable than body B
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The body B is more stable than body A
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The bodies A and B are unstable
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