Assessment: C-209 - Pneumatic Systems 1 Exam
Questions and Answers
What happens if the air temperature in a pneumatic system drops below the dew point? - -
Pipes will Freeze
-In a compressed air system, what carries lubricant from an air lubricator to the points of
use? - -Air flow
-What method is most commonly used to determine the flow rate of lubricant being
dispensed by an air lubricator? - -drip rate shown in sight dome
-What is Delta P? - -Pressure difference between two pints in pneumatic system
-What setting on a compressor pressure switch must e adjusted to keep the compressor
from constantly cycling? - -Minimum pressure
-What type of operator is used on this directional control valve? - -Manual
-In the circuit shown, if the reading on Gauge 2 is 300 kPa, what is the reading on Gauge 3,
assuming the valve is in a de-energized state? - -The Same
-For what purpose is the pneumatic regulator used? - -to provide a constant pressure to
the circuit
-Why should you avoid blocking a pressurized air line with your fingers or hands? - -The
air can penetrate the skin
-What do MOST industrial pneumatic systems use to transmit energy? - -Air
-What is the function of a needle valve in a pneumatic circuit? - -Control flow rate
-Why should any device or hose containing compressed air be properly secured? - -to
prevent the item from whipping
-What is placed between the valve and ports on a subplate to prevent leakage when
installing the subplate? - -O-rings
-What are symbols in a pneumatic schematics used to show? - -Function
-What device is most often used to automatically turn off a reciprocating air compressor
when the system demand for air stops? - -Pressure Switch
Questions and Answers
What happens if the air temperature in a pneumatic system drops below the dew point? - -
Pipes will Freeze
-In a compressed air system, what carries lubricant from an air lubricator to the points of
use? - -Air flow
-What method is most commonly used to determine the flow rate of lubricant being
dispensed by an air lubricator? - -drip rate shown in sight dome
-What is Delta P? - -Pressure difference between two pints in pneumatic system
-What setting on a compressor pressure switch must e adjusted to keep the compressor
from constantly cycling? - -Minimum pressure
-What type of operator is used on this directional control valve? - -Manual
-In the circuit shown, if the reading on Gauge 2 is 300 kPa, what is the reading on Gauge 3,
assuming the valve is in a de-energized state? - -The Same
-For what purpose is the pneumatic regulator used? - -to provide a constant pressure to
the circuit
-Why should you avoid blocking a pressurized air line with your fingers or hands? - -The
air can penetrate the skin
-What do MOST industrial pneumatic systems use to transmit energy? - -Air
-What is the function of a needle valve in a pneumatic circuit? - -Control flow rate
-Why should any device or hose containing compressed air be properly secured? - -to
prevent the item from whipping
-What is placed between the valve and ports on a subplate to prevent leakage when
installing the subplate? - -O-rings
-What are symbols in a pneumatic schematics used to show? - -Function
-What device is most often used to automatically turn off a reciprocating air compressor
when the system demand for air stops? - -Pressure Switch
