Free Fluid Flow MCQs with Answers
29 Fluid Flow MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Fluid flow covers pressure, density, viscosity and the motion of liquids and gases through pipes or open channels. It includes the continuity equation, Bernoulli equation, streamline and turbulent flow, and the effects of changing area, height and speed. Viscosity and ideal fluid assumptions must not be confused with pressure effects.
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29 questions · page 2 of 2
21. If each particle of a fluid passing through a point follows the same path, then this flow is called
- A. Ideal flow.
- B. Normal flow.
- C. Turbulent flow.
- D. Streamline flow.
Explanation: The correct answer is streamline flow. In streamline or laminar flow, fluid particles move along well-defined paths or streamlines, and…
Correct answer: Streamline flow.22. If the different layers of a fluid offer no resistance over each other, then the fluid will be a/ an
- A. Ideal fluid
- B. Viscous fluid
- C. Newtonian fluid
- D. Non-viscous fluid
Explanation: The correct answer is ideal fluid. An ideal fluid is a theoretical fluid that is incompressible and non-viscous, meaning it has no…
Correct answer: Ideal fluid- A. Steady flow
- B. Laminar flow
- C. Turbulent flow
- D. Streamline flow
Explanation: The correct answer is 'turbulent flow.' This type of flow is characterized by chaotic changes in pressure and velocity, leading to…
Correct answer: Turbulent flow- A. Pascal's Law
- B. Hooke's Law
- C. Boyle's Law
- D. Charles's Law
Explanation: Explanation:By Pascal's law, pressure on each side of the container and everywhere in the container is the same provided the density of…
Correct answer: Pascal's Law- A. Mass
- B. Density
- C. Pressure
- D. Force
Explanation: In an incompressible fluid, particles have a constant density. An incompressible fluid is defined as one whose density does not change on…
Correct answer: Density- A. Weight in water
- B. Weight in liquid
- C. Weight in air
- D. Volume
Explanation: According to the Archimedes principle, if an object is immersed in a fluid, it experiences an apparent loss of weight which is equal to…
Correct answer: Volume- A. Will be pulled towards each other
- B. Will drift apart from each other
- C. Will have no effect on each other
- D. Will experience random motion
Explanation: As the speed of water between the ships is greater than outside them, pressure between them gets reduced, and pressure outside is greater…
Correct answer: Will be pulled towards each other- A. 4.9 x 10^-3 m3/s
- B. 4.9 m3/s
- C. 7.0 m3/s
- D. 49 m3/s
Explanation: We are asked to find the volume rate of flow in this question. With the radius 1.5cm (0.015m) we can find the cross-sectional area of the…
Correct answer: 4.9 x 10^-3 m3/s- A. Zero
- B. Minimum but not zero
- C. Large
- D. Peripheral
Explanation: b) Minimum but not zeroThis option suggests that the velocity of the liquid in contact with the containing vessel is the minimum but not…
Correct answer: Minimum but not zero