# Fluid Mechanics MCQs with Answers

Fluid Mechanics MCQs are very important test and often asked by various testing services and competitive exams around the world. Here you will find all the Important Fluid Mechanics MCQs for Preparation.

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## Fluid Mechanics Online MCQs with Answers

The property of a fluid that resists its flow is called:
a) Viscosity
b) Density
c) Pressure
d) Surface tension

a) Viscosity

The pressure exerted by a fluid at rest increases with:
a) Depth
b) Surface area
c) Temperature
d) Velocity

a) Depth

The buoyant force exerted on an object immersed in a fluid is equal to the:
a) Weight of the object
b) Volume of the object
c) Mass of the object
d) Density of the object

a) Weight of the object

The principle that states that the pressure applied to a fluid is transmitted undiminished to every point of the fluid is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

a) Pascal’s principle

The velocity of a fluid flowing through a pipe is highest at:
a) The widest section of the pipe
b) The narrowest section of the pipe
c) The middle section of the pipe
d) The entrance of the pipe

b) The narrowest section of the pipe

The resistance of a fluid to flow is inversely proportional to its:
a) Viscosity
b) Density
c) Velocity
d) Surface tension

c) Velocity

The pressure difference between two points in a fluid is directly proportional to the:
a) Depth between the two points
b) Density of the fluid
c) Acceleration due to gravity
d) Surface area of the container

a) Depth between the two points

The flow of a fluid in which the velocity and pressure are constant along any line of flow is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

c) Streamline flow

The equation that relates the pressure, density, and height in a fluid is known as:
a) Bernoulli’s equation
b) Archimedes’ principle
c) Pascal’s principle
d) Boyle’s law

a) Bernoulli’s equation

The force per unit area exerted on a surface by a fluid is called:
a) Pressure
b) Velocity
c) Density
d) Viscosity

a) Pressure

The principle that explains why an object immersed in a fluid experiences an upward buoyant force is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The upward force experienced by an object submerged in a fluid is equal to the weight of the fluid displaced by the object. This statement is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The flow of a fluid in which the velocity and pressure vary randomly is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

b) Turbulent flow

The property of a fluid that determines its resistance to shear or flow is called:
a) Viscosity
b) Density
c) Pressure
d) Surface tension

a) Viscosity

The pressure in a fluid decreases with:
a) Depth
b) Surface area
c) Temperature
d) Velocity

a) Depth

The buoyant force experienced by an object immersed in a fluid depends on the:
a) Mass of the object
b) Volume of the object
c) Density of the object
d) Density of the fluid

b) Volume of the object

The principle that states that the buoyant force on an object in a fluid is equal to the weight of the fluid displaced by the object is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The velocity of a fluid flowing through a pipe is lowest at:
a) The widest section of the pipe
b) The narrowest section of the pipe
c) The middle section of the pipe
d) The exit of the pipe

b) The narrowest section of the pipe

The resistance of a fluid to flow is directly proportional to its:
a) Viscosity
b) Density
c) Velocity
d) Surface tension

a) Viscosity

The pressure in a fluid depends on:
a) Depth, density, and acceleration due to gravity
b) Surface area, velocity, and temperature
c) Volume, mass, and viscosity
d) Force, velocity, and surface tension

a) Depth, density, and acceleration due to gravity

The flow of a fluid in which adjacent layers slide past each other is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

a) Laminar flow

The equation that relates the pressure, density, and height in a fluid at rest is known as:
a) Bernoulli’s equation
b) Archimedes’ principle
c) Pascal’s principle
d) Boyle’s law

c) Pascal’s principle

The force per unit area exerted on a surface by a fluid is transmitted undiminished in all directions. This statement is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

a) Pascal’s principle

The flow of a fluid in which the velocity and pressure are constant along any line of flow is known as:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

c) Streamline flow

The property of a fluid that determines its ability to resist changes in shape or volume is called:
a) Viscosity
b) Density
c) Pressure
d) Surface tension

a) Viscosity

The pressure in a fluid increases with:
a) Depth
b) Surface area
c) Temperature
d) Velocity

a) Depth

The buoyant force experienced by an object immersed in a fluid depends on the:
a) Weight of the object
b) Volume of the object
c) Mass of the object
d) Density of the object

b) Volume of the object

The principle that explains why an object immersed in a fluid experiences an upward buoyant force is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The equation that relates the pressure, velocity, and height in a flowing fluid is known as:
a) Bernoulli’s equation
b) Archimedes’ principle
c) Pascal’s principle
d) Boyle’s law

a) Bernoulli’s equation

The force per unit area exerted on a surface by a fluid is called:
a) Pressure
b) Velocity
c) Density
d) Viscosity

a) Pressure

The principle that explains the upward force experienced by an object submerged in a fluid is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The flow of a fluid in which adjacent layers move in parallel lines is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

a) Laminar flow

The property of a fluid that determines its resistance to shear or flow is called:
a) Viscosity
b) Density
c) Pressure
d) Surface tension

a) Viscosity

The pressure in a fluid decreases with:
a) Depth
b) Surface area
c) Temperature
d) Velocity

a) Depth

The buoyant force experienced by an object immersed in a fluid is equal to the:
a) Weight of the object
b) Volume of the object
c) Mass of the object
d) Density of the object

a) Weight of the object

The principle that states that the pressure applied to a fluid is transmitted undiminished to every point of the fluid is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

a) Pascal’s principle

The velocity of a fluid flowing through a pipe is highest at:
a) The widest section of the pipe
b) The narrowest section of the pipe
c) The middle section of the pipe
d) The entrance of the pipe

b) The narrowest section of the pipe

The resistance of a fluid to flow is inversely proportional to its:
a) Viscosity
b) Density
c) Velocity
d) Surface tension

c) Velocity

The pressure difference between two points in a fluid is directly proportional to the:
a) Depth between the two points
b) Density of the fluid
c) Acceleration due to gravity
d) Surface area of the container

a) Depth between the two points

The flow of a fluid in which the velocity and pressure are constant along any line of flow is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

c) Streamline flow

The equation that relates the pressure, density, and height in a fluid is known as:
a) Bernoulli’s equation
b) Archimedes’ principle
c) Pascal’s principle
d) Boyle’s law

a) Bernoulli’s equation

The force per unit area exerted on a surface by a fluid is called:
a) Pressure
b) Velocity
c) Density
d) Viscosity

a) Pressure

The principle that explains why an object immersed in a fluid experiences an upward buoyant force is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The principle that states that the pressure applied to a fluid is transmitted undiminished to every point of the fluid is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

a) Pascal’s principle

The velocity of a fluid flowing through a pipe is highest at:
a) The widest section of the pipe
b) The narrowest section of the pipe
c) The middle section of the pipe
d) The entrance of the pipe

b) The narrowest section of the pipe

The resistance of a fluid to flow is inversely proportional to its:
a) Viscosity
b) Density
c) Velocity
d) Surface tension

c) Velocity

The pressure difference between two points in a fluid is directly proportional to the:
a) Depth between the two points
b) Density of the fluid
c) Acceleration due to gravity
d) Surface area of the container

a) Depth between the two points

The flow of a fluid in which the velocity and pressure are constant along any line of flow is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

c) Streamline flow

The equation that relates the pressure, density, and height in a fluid at rest is known as:
a) Bernoulli’s equation
b) Archimedes’ principle
c) Pascal’s principle
d) Boyle’s law

c) Pascal’s principle

The force per unit area exerted on a surface by a fluid is called:
a) Pressure
b) Velocity
c) Density
d) Viscosity

a) Pressure

The principle that explains why an object immersed in a fluid experiences an upward buoyant force is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The flow of a fluid in which the velocity and pressure vary randomly is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

b) Turbulent flow

The property of a fluid that determines its resistance to shear or flow is called:
a) Viscosity
b) Density
c) Pressure
d) Surface tension

a) Viscosity

The pressure in a fluid decreases with:
a) Depth
b) Surface area
c) Temperature
d) Velocity

a) Depth

The buoyant force experienced by an object immersed in a fluid is equal to the:
a) Weight of the object
b) Volume of the object
c) Mass of the object
d) Density of the object

a) Weight of the object

The principle that states that the pressure applied to a fluid is transmitted undiminished to every point of the fluid is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

a) Pascal’s principle

The velocity of a fluid flowing through a pipe is highest at:
a) The widest section of the pipe
b) The narrowest section of the pipe
c) The middle section of the pipe
d) The entrance of the pipe

b) The narrowest section of the pipe

The resistance of a fluid to flow is inversely proportional to its:
a) Viscosity
b) Density
c) Velocity
d) Surface tension

c) Velocity

The pressure difference between two points in a fluid is directly proportional to the:
a) Depth between the two points
b) Density of the fluid
c) Acceleration due to gravity
d) Surface area of the container

a) Depth between the two points

The flow of a fluid in which the velocity and pressure are constant along any line of flow is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

c) Streamline flow

The equation that relates the pressure, density, and height in a fluid is known as:
a) Bernoulli’s equation
b) Archimedes’ principle
c) Pascal’s principle
d) Boyle’s law

a) Bernoulli’s equation

The force per unit area exerted on a surface by a fluid is called:
a) Pressure
b) Velocity
c) Density
d) Viscosity

a) Pressure

The principle that explains why an object immersed in a fluid experiences an upward buoyant force is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

b) Archimedes’ principle

The principle that states that the pressure applied to a fluid is transmitted undiminished to every point of the fluid is known as:
a) Pascal’s principle
b) Archimedes’ principle
c) Bernoulli’s principle
d) Newton’s principle

a) Pascal’s principle

The velocity of a fluid flowing through a pipe is highest at:
a) The widest section of the pipe
b) The narrowest section of the pipe
c) The middle section of the pipe
d) The entrance of the pipe

b) The narrowest section of the pipe

The resistance of a fluid to flow is inversely proportional to its:
a) Viscosity
b) Density
c) Velocity
d) Surface tension

c) Velocity

The pressure difference between two points in a fluid is directly proportional to the:
a) Depth between the two points
b) Density of the fluid
c) Acceleration due to gravity
d) Surface area of the container

a) Depth between the two points

The flow of a fluid in which the velocity and pressure are constant along any line of flow is called:
a) Laminar flow
b) Turbulent flow
c) Streamline flow
d) Irrotational flow

c) Streamline flow

The equation that relates the pressure, density, and height in a fluid is known as:
a) Bernoulli’s equation
b) Archimedes’ principle
c) Pascal’s principle
d) Boyle’s law