Transcript Engineering Concepts Chapter 1 Terms

Engineering Concepts
Chapter 5 Terms
ACTUATOR
A device that transfers
fluid or electrical
energy into mechanical
energy.
BERNOULLI’S LAW

A change in the
velocity of a fluid
caused by a
constriction produces
an opposite change in
pressure.
BOYLE’S LAW

The volume of a gas at
a constant temperature
is inversely
proportional to its
pressure.
CYLINDER

A cylindrical chamber
in which a piston slides
to move or compress a
fluid.
FRICTION

A force that opposes
the motion or intended
motion of a body in
contact with another
body.
HYDRAULICS

A system that uses
pressurized fluid to
transfer energy.
PASCAL’S LAW

A law that states when
a force is exerted on a
fluid, the fluid transfers
this force equally
against the walls of the
vessel.
PNEUMATICS

A system that uses
pressurized air to
transfer energy.
PRESSURE

The force generated
when energy is applied
to a fluid; force per unit
area.
VALVE

Any of numerous
mechanical devices by
which the flow of liquid,
gas, or loose material in
bulk may be started,
stopped, or regulated by a
movable part that opens,
shuts, or partially obstructs
one or more ports or
passageways.