Fluid Properties and Behaviour: Interactive Learning Quizzes

Question 1

Which property is NOT characteristic of fluids?

Accepted Answer

Conductivity

Answer

Density

Answer

Viscosity

Answer

Compressibility

Question 2

The SI unit of density is:

Accepted Answer

Kilograms per cubic meter

Answer

Newtons per square meter

Answer

Pascals per second

Answer

Joules per kilogram

Question 3

Fluid pressure is defined as:

Accepted Answer

Force per unit area

Answer

Force per unit volume

Answer

Volume per unit force

Answer

Area per unit force

Question 4

Which dimensionless quantity characterizes fluid flow behaviour?

Accepted Answer

Reynolds number

Answer

Viscosity

Answer

Pressure

Answer

Density

Question 5

Laminar flow occurs when the Reynolds number is:

Accepted Answer

Below a critical value

Answer

Above a critical value

Answer

Equal to zero

Answer

Equal to infinity

Question 6

Which device is commonly used to measure fluid pressure?

Accepted Answer

Manometer

Answer

Thermometer

Answer

Viscometer

Answer

Anemometer

Question 7

Which of the following is NOT a practical application of fluid properties?

Accepted Answer

Electrical insulation

Answer

Hydraulic systems

Answer

Lubrication

Answer

Aerodynamics

Question 8

Which instrument is used to measure the density of a fluid?

Accepted Answer

Hydrometer

Answer

Viscometer

Answer

Manometer

Answer

Anemometer

Question 9

Which property is NOT characteristic of fluids?

Accepted Answer

Volume

Answer

Density

Answer

Viscosity

Answer

Pressure

Question 10

A fluid with a high viscosity is described as:

Accepted Answer

Thick and flows slowly

Answer

Thin and flows quickly

Answer

Incompressible

Answer

Highly elastic

Question 11

The study of fluid behaviour is known as:

Accepted Answer

Fluid dynamics

Answer

Thermodynamics

Answer

Electromagnetism

Answer

Quantum mechanics

Question 12

Which everyday substance is an example of a fluid?

Accepted Answer

Water

Answer

Steel

Answer

Plastic

Answer

Wood

Question 13

Density is defined as:

Accepted Answer

Mass per unit volume

Answer

Volume per unit mass

Answer

Pressure per unit area

Answer

Force per unit length

Question 14

Viscosity is measured in:

Accepted Answer

Pascal-seconds (Pa·s)

Answer

Newton-seconds (N·s)

Answer

Kilograms per cubic metre (kg/m³)

Answer

Metres per second (m/s)

Question 15

Fluid pressure at a given point is:

Accepted Answer

Equal in all directions

Answer

Greater at the top than the bottom

Answer

Greater at the sides than the centre

Answer

Zero if the fluid is stationary

Question 16

Which factor influences the viscosity of a fluid?

Accepted Answer

Temperature

Answer

Pressure

Answer

Density

Answer

Shape of container

Question 17

How do you measure pressure using a manometer?

Accepted Answer

Measure the difference in heights of two columns of fluids.

Answer

Measure the height of a single column of fluid.

Answer

Measure the force exerted by a fluid on a surface.

Question 18

Which of the following is not a fundamental property of fluids?

Accepted Answer

Temperature

Answer

Density

Answer

Viscosity

Answer

Pressure

Question 19

The SI unit of dynamic viscosity is:

Accepted Answer

Newton-seconds per square meter (Ns/m^2)

Answer

Pascals (Pa)

Answer

Kilograms per cubic meter (kg/m^3)

Answer

Centipoise (cP)

Question 20

Pascal's principle states that pressure applied to a confined fluid is transmitted:

Accepted Answer

Equally to every point in the fluid

Answer

Only to the bottom surface of the fluid

Answer

Only to the top surface of the fluid

Answer

Unequally to different parts of the fluid

Question 21

The buoyancy force acting on an object submerged in a fluid is:

Accepted Answer

Equal to the weight of the fluid displaced by the object

Answer

Greater than the weight of the fluid displaced by the object

Answer

Less than the weight of the fluid displaced by the object

Answer

Independent of the fluid displaced by the object

Question 22

Which of the following is not an example of a fluid in motion?

Accepted Answer

A solid object moving through a fluid

Answer

Water flowing through a pipe

Answer

Air moving in a wind tunnel

Answer

Oil flowing in a hydraulic system

Question 23

The Reynolds number is a dimensionless quantity used to characterize:

Accepted Answer

Fluid flow regime

Answer

Fluid density

Answer

Fluid pressure

Answer

Fluid viscosity

Question 24

Laminar flow is characterized by:

Accepted Answer

Smooth, orderly flow layers

Answer

Random, chaotic flow patterns

Answer

High flow resistance

Answer

Low energy consumption

Question 25

Which of the following is not a common application of fluid dynamics in engineering?

Accepted Answer

Design of solid structures

Answer

Design of aircraft wings

Answer

Analysis of fluid flow in pipelines

Answer

Development of hydraulic systems