Basic Pneumatics Systems part 2

Air flow rate depends on several factors, including _____

• A. The humidity of the air

• B. The volume of the containers

• C. The temperature of the air

• D. The ambient pressure

Atmospheric pressure, temperature, and _____ are needed to find the rate of compressed air consumption in Standard Cubic Feet per Minute (SCFM)

• A. Tank volume

• B. Density

• C. Relative Humidity

• D. Hose size

Another name for the rotameter is a(n) _____ flow meter

• A. Bourdon Tube

• B. Needle valve

• C. Variable orifice

• D. Vacuum tube

The way to read a rotameter is to read the scale from the _____

• A. Center of the ball

• B. Bottom of the ball

• C. Top of the ball

• D. None of the above

The air flow rate and volume of a pneumatic cylinder determines its _____

• A. Speed

• B. Maximum force

• C. Minimum force

• D. Pressure drop

Needle valves are often used to _____ in pneumatic circuits

• A. Measure air flow

• B. Reduce atmospheric pressure

• C. Set the position of the actuator

• D. Control actuator speed

Needle valves feature an adjustable _____

• A. Leak

• B. Restriction

• C. Exhaust

• D. Vent

A flow control valve is a combination of a _____

• A. Needle valve and valve poppet

• B. Flow meter and a valve poppet

• C. Needle valve and restrictor valve

• D. DCV and a needle valve

If the load on an actuator change, the pressure required to move the load will _____

• A. Also change

• B. Remain the same

• C. Cause the valve to stall

• D. Apply back pressure to the DCV

Passive rod locks are used to prevent _____ when a load is applied

• A. Runaway

• B. Any movement

• C. Uncontrolled movement

• D. Leakage