M8 - Hydraulics and pneumatics

Hydraulic systems use ________ to transfer force from one point to another.

• Air

• Liquid

• Solid

• Gas

Air is compressible and liquid is incompressible.

• True

• False

If an object is compressible it can be squeezed to fit into a smaller space than it normally does.

• True

• False

The basic idea behind any hydraulic system is very simple: Force that is applied at one point is trasmitted to another point using________

• A compressible fluid

• An incompressible fluid

• A cold compress

• A hot compress

Where can you look on your car to see a good example of a basic piston-driven hydraulic system?

• The power steering system

• The brake system

• The instrument panel

• The radio system

Pressure is measured in what units

• Newtons

• m/s

• Pascals

• Moles

The spacing of molecules in ______ is much larger than ______.

• solids, liquids

• liquids, gases

• solids, gases

• gases, liquids

Pneumatic and other power systems can support three kinds of motion; they are

• Linear, reciprocating, and random motion

• Linear, flowing, and rotary motion

• Linear, reciprocating, and rotary motion

• Linear, zigzag, and spiral motion

The scientific principle that makes hydraulic systems possible is

• The fluid flow principle

• Bernoulli’s principle

• Pascal’s principle

• Boyle’s law