Basics of Pneumatic Pressure and Flow

Air compressors create

• Flow

• Gas

• Pressure

• 14.7 psia

The net area over which the pressure acts when retracting a double acting cylinder can be found by subtracting the rod area from the ___.

• Piston area

• Surface area

• Cam area

• Bushing area

The force output of a cylinder when extending can be calculated by multiplying the pressure times the ___.

• Rod area

• Annular area

• Piston area

• Stroke area

Boyle’s Law states that

• Pressure in a confined volume is equal

• Pressure is force intensity

• Pressure is inversely proportional to volume

• Volume is directly proportional to pressure

Pascal’s Law applies only to

• High octane fluids

• Gases

• Confined fluids

• Fluids in motion

Delta P is the difference in pressure between:

• Absolute and gauge pressure

• The cylinder and the rod

• Two points in a pneumatic system

• Four points in a pneumatic system

The two types of resistance to air flow in a pneumatic system are:

• Actuator load and atmospheric pressure

• Pressure and area

• Weight and torque

• Friction and actuator load

To convert gauge pressure to absolute

• Add atmospheric pressure to the gauge pressure

• Add 14.7 psi to the psig reading

• Add 101 kPa to the kPa gauge reading

• All answers are correct

Pneumatic leverage refers to the ability of a pneumatic system to develop a large force output with:

• A crow bar

• A low force input

• Absolute force input

• Hydraulic fluid

Flow occurs between two connected points in a pneumatic system when ___.

• There is a vacuum

• A pressure differential exists

• There is a high pressure

• Pressure is the same at both points