Properties of Matter - Mechanical Properties of Fluids

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Q. According to Bernoulli's equation, an increase in the speed of a fluid occurs simultaneously with a: (2020)
  • A. Increase in pressure
  • B. Decrease in pressure
  • C. Increase in temperature
  • D. Decrease in density
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a decrease in:
  • A. Pressure
  • B. Temperature
  • C. Density
  • D. Viscosity
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a decrease in which of the following? (2019)
  • A. Pressure
  • B. Density
  • C. Viscosity
  • D. Temperature
Q. According to Bernoulli's principle, an increase in the speed of a fluid occurs simultaneously with a: (2020)
  • A. Increase in pressure
  • B. Decrease in pressure
  • C. Increase in temperature
  • D. Decrease in density
Q. According to Bernoulli's principle, what happens to the pressure of a fluid when its velocity increases?
  • A. Pressure increases
  • B. Pressure decreases
  • C. Pressure remains constant
  • D. Pressure fluctuates
Q. In a fluid at rest, the pressure at a point depends on which of the following? (2021)
  • A. Depth of the fluid
  • B. Shape of the container
  • C. Volume of the fluid
  • D. Temperature of the fluid
Q. In a fluid at rest, the pressure at a point depends on:
  • A. The height of the fluid column above it
  • B. The shape of the container
  • C. The volume of the fluid
  • D. The temperature of the fluid
Q. In a fluid flow, what does the term 'laminar flow' refer to? (2019)
  • A. Flow with high turbulence.
  • B. Flow in parallel layers.
  • C. Flow with varying velocity.
  • D. Flow that is compressible.
Q. In a fluid, what is the relationship between depth and pressure?
  • A. Pressure increases with depth
  • B. Pressure decreases with depth
  • C. Pressure remains constant
  • D. Pressure is independent of depth
Q. In a fluid, what is the term for the height of a fluid column that exerts a certain pressure?
  • A. Hydrostatic Height
  • B. Fluid Column Height
  • C. Hydrostatic Head
  • D. Fluid Pressure Height
Q. In a fluid, what is the term for the surface phenomenon that causes the surface to behave like a stretched elastic membrane?
  • A. Viscosity
  • B. Surface Tension
  • C. Capillarity
  • D. Hydrostatic Pressure
Q. In fluid mechanics, what does the term 'streamline' refer to? (2020)
  • A. Path of a fluid particle
  • B. Layer of fluid
  • C. Viscous flow
  • D. Turbulent flow
Q. The buoyant force acting on an object submerged in a fluid is equal to:
  • A. The weight of the object
  • B. The weight of the fluid displaced
  • C. The density of the object
  • D. The pressure of the fluid
Q. The buoyant force on an object submerged in a fluid is equal to: (2022)
  • A. The weight of the object
  • B. The weight of the fluid displaced
  • C. The density of the object
  • D. The volume of the object
Q. The viscosity of a fluid is a measure of its: (2022)
  • A. Density
  • B. Pressure
  • C. Resistance to flow
  • D. Temperature
Q. What happens to the buoyant force when the density of the fluid increases? (2022)
  • A. It decreases
  • B. It increases
  • C. It remains the same
  • D. It becomes zero
Q. What is the continuity equation in fluid dynamics? (2022)
  • A. A1V1 = A2V2
  • B. P1V1 = P2V2
  • C. F = ma
  • D. V = IR
Q. What is the effect of increasing temperature on the viscosity of liquids? (2019)
  • A. Increases viscosity
  • B. Decreases viscosity
  • C. No effect
  • D. Depends on the liquid
Q. What is the effect of temperature on the viscosity of a liquid? (2020)
  • A. Increases with temperature
  • B. Decreases with temperature
  • C. Remains constant
  • D. Varies randomly
Q. What is the hydrostatic pressure at a depth of 10 meters in water? (Density of water = 1000 kg/m³, g = 9.81 m/s²) (2022)
  • A. 9810 Pa
  • B. 10000 Pa
  • C. 98100 Pa
  • D. 1000 Pa
Q. What is the principle behind a manometer? (2023)
  • A. It measures temperature.
  • B. It measures pressure difference.
  • C. It measures fluid density.
  • D. It measures flow rate.
Q. What is the principle behind the operation of a hydraulic lift? (2019)
  • A. Bernoulli's principle
  • B. Archimedes' principle
  • C. Pascal's law
  • D. Newton's law
Q. What is the principle that states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure?
  • A. Bernoulli's Principle
  • B. Archimedes' Principle
  • C. Pascal's Law
  • D. Newton's Law
Q. 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?
  • A. Archimedes' Principle
  • B. Pascal's Law
  • C. Bernoulli's Principle
  • D. Newton's Law
Q. What is the principle that states that the pressure in a fluid decreases as the fluid's velocity increases?
  • A. Bernoulli's Principle
  • B. Pascal's Principle
  • C. Archimedes' Principle
  • D. Hydrostatic Principle
Q. What is the relationship between pressure and depth in a fluid at rest? (2019)
  • A. Pressure increases with depth
  • B. Pressure decreases with depth
  • C. Pressure remains constant
  • D. Pressure varies randomly
Q. What is the term for the phenomenon where a liquid's surface behaves like a stretched elastic membrane?
  • A. Surface Tension
  • B. Capillarity
  • C. Viscosity
  • D. Hydrostatic Pressure
Q. What is the term for the ratio of the density of a substance to the density of a reference substance, typically water?
  • A. Specific gravity
  • B. Viscosity
  • C. Pressure
  • D. Buoyancy
Q. Which of the following describes the buoyant force acting on an object submerged in a fluid? (2020)
  • A. It is equal to the weight of the fluid displaced.
  • B. It is equal to the weight of the object.
  • C. It is always greater than the weight of the object.
  • D. It is independent of the fluid density.
Q. Which of the following describes the flow of an ideal fluid? (2022)
  • A. Incompressible and non-viscous
  • B. Viscous and compressible
  • C. Incompressible and viscous
  • D. Compressible and non-viscous
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