INTRODUCTION

Question 1

s the branch of physics that studies the
behavior of fluids (liquids and gases) at rest and in motion.
It combines principles from physics and mathematics to
understand how fluids move and interact with their
surroundings.

Answer 1

FLUID MECHANICS

Question 2

Any substance that can flow and take the
shape of its container, typically liquids and gases.

Answer 2

FLUID

Question 3

s is a sub-discipline of fluid mechanics that
focuses on the behavior and movement of water and other
liquids in various applications, particularly in engineering.

Answer 3

HYDRAULICS

Question 4

These systems use liquids to
transmit power.

Answer 4

HYDRAULICS SYSTEMS

Question 5

Importance of Fluid Mechanics and Hydraulics in
Engineering

Answer 5

Hydraulics is essential in
designing and managing large water infrastructures
like dams, canals, and levees.

Question 6

The mass per unit volume of a fluid. It
determines how fluids respond to forces like gravity.

Answer 6

DENSITY

Question 7

A measure of a fluid’s resistance to
flow. Higher viscosity means the fluid flows more
slowly

Answer 7

VISCOSITY

Question 8

: The force that acts on the surface
of a liquid, causing it to contract and resist external
forces

Answer 8

SURFACE TENSION

Question 9

The ability of a fluid to change its
volume under pressure. Liquids are generally
incompressible, while gases can be compressed
significantly.

Answer 9

COMPRESSIBILITY

Question 10

Force exerted per unit area on the
surface of a fluid.

Answer 10

PRESSURE

Question 11

The study of fluids at rest. It involves
understanding how pressure varies with depth in a
fluid and how forces are transmitted in a stationary
fluid.

Answer 11

FLUID STATICS

Question 12

The study of fluids in motion. It
includes concepts like flow velocity, acceleration, and
the forces acting on a moving fluid.

Answer 12

FLUID DYNAMICS

Question 13

Differences Between Fluid Mechanics and
Hydraulics

Answer 13

Fluid Mechanics: A broader field that includes both
liquids and gases and encompasses both statics and
dynamics.
* Hydraulics: A more specific field focused mainly on
the behavior of liquids (primarily water) in systems, often dealing with practical engineering problems like
water flow in pipes, rivers, and dams.

Question 14

. Why Study Fluid Mechanics and Hydraulics?

Answer 14

Fluid mechanics is critical for many engineering fields due
to the widespread presence of fluids in both nature and
industry. Hydraulics, in particular, provides engineers with
the tools and knowledge to manage water resources and
design efficient systems for moving and controlling liquids.