Properties of Matter - Mechanical Properties of Fluids

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Q1. Which of the following statements is true regarding laminar flow?

Solution:

Laminar flow is characterized by smooth and orderly fluid motion, typically occurring at low velocities.

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Q2. Which of the following describes the relationship between pressure and volume of a gas at constant temperature?

Solution:

Boyle's Law states that the pressure of a gas is inversely proportional to its volume at constant temperature.

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Q3. What is the principle that states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?

Solution:

Archimedes' Principle states that the buoyant force on an object is equal to the weight of the fluid displaced by the object.

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Q4. Which property of fluids is defined as the resistance to flow?

Solution:

Viscosity is the property of fluids that describes their resistance to flow.

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Q5. What is the principle behind a manometer? (2023)

Solution:

A manometer is used to measure the pressure difference between two points in a fluid.

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Q6. In a fluid at rest, the pressure at a point depends on:

Solution:

In a fluid at rest, the pressure at a point depends on the height of the fluid column above it, as described by hydrostatic pressure.

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Q7. What is the relationship between pressure and depth in a fluid at rest? (2019)

Solution:

In a fluid at rest, pressure increases with depth due to the weight of the fluid above.

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Q8. Which of the following describes the property of a fluid that resists flow? (2020)

Solution:

Viscosity is the measure of a fluid's resistance to flow. Higher viscosity means the fluid flows less easily.

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Q9. Which of the following equations represents Bernoulli's principle?

Solution:

Bernoulli's principle is represented by the equation P + 1/2 ρv² + ρgh = constant, relating pressure, velocity, and height in a fluid.

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Q10. In a fluid flow, what does the term 'laminar flow' refer to? (2019)

Solution:

Laminar flow refers to fluid motion in parallel layers with no disruption between them.