SACA – Pneumatics Exam – Questions and Answers
Which of the following is the number of branch circuits that a pneumatic cross fitting has? -
-3
-What is required to operate a two position solenoid operated DCV? - -A current flow
-______ will not be removed from air by a filter? - -Water vapor
-A technician should use extreme caution when disconnecting air lines even though LOTO
procedures are in place because of? - -Unrelieved pressure can cause whiplash of the line
-Which of the following is used to control cylinder/actuator speed ? - -Needle valve
-What is the most probable effect of side-loaded cylinder motion? - -Binding
-The biggest maintenance problem in pneumatic systems is? - -Air leakage
-Which of the following is the purpose of a fluid power schematic diagram? - -To show
component's function and how they relate to the function of other components
-Which of the following is the best method to prevent cylinder rods from bending? - -
Mount the cylinder so that the force is transmitted through the cylinder centerline
-What creates air pressure in a pneumatic system? - -Mechanical compression
-What is not a function of a pneumatic air line? - -Controlling air flow direction
-Why should safety glasses be worn when threating pipes? - -To prevent metal shards
from penetrating your eyes
-The purpose of a fluid power motor is to convert fluid pressure to________motion? - -rotary
-If a two position solenoid operated valve has only one solenoid, a ________ is used to return
the spool to the de-energize position? - -spring
-What is the basic first step to analyze a pneumatic control system for the correct
operation? - -Observe the correct gauges for proper settings
-What could cause a pneumatic pressure regulator to fail to operate after being installed? -
-Installed in a reverse flow direction
-Which of the following is not a good troubleshooting method? - -Shotgun technique part
replacement
, -What has no affect on actuator speed? - -Water vapor in the system
-To pinpoint an air leak , use ________ on the suspected area? - -soap solution
-The _______ is the commonly used component for the memory logic element? - -control
relay
-A Fluid Power Component is in a circuit. Which of the following is not a test that may be
performed? - -Inspecting the O-rings for wear
-Which of the following is the Delta P if the gauge at the motor inlet is 380kpa and the
gauge at the motor outlet is 35kpa? - -345
-Which is not a side effect of bending a tube? - -Inner radius of the tube becomes thinner
-How can you increase the piston speed of a cylinder? - -By installing a quick exhaust valve
on the cylinder output
-What pneumatic component provides straight line motion? - -Cylinder
-Which of the following carries lubricant from a lubricator to the point of use in a
pneumatic system? - -Air flow
-Which of the following connects the compressed air source to the control devices? - -
Supply line
-Which of the following is the impact of air friction resistance in a pneumatic system? - -
Air pressure drops as air flows through the system
-Flow occurs between two connected points in a pneumatic system when ______ . - -a
pressure differential exists
-The function of a check valve is to? - -Prevent the reversal of flow in a piping system
-When a double acting cylinder is extending or retracting, the cylinder load includes the
load to be moved, internal mechanical friction of the cylinder and what other factor? - -
Back pressure
-In an air compressor system, which of the following is done with condensed water? - -
Drained from the system
-How is air compressed in a small compressor? - -Piston movement
-This fitting is to connect two branch circuits to a single supply line ______ . - -tee
-A needle valve is often used in pneumatic circuits ______ . - -to control actuator speed
Which of the following is the number of branch circuits that a pneumatic cross fitting has? -
-3
-What is required to operate a two position solenoid operated DCV? - -A current flow
-______ will not be removed from air by a filter? - -Water vapor
-A technician should use extreme caution when disconnecting air lines even though LOTO
procedures are in place because of? - -Unrelieved pressure can cause whiplash of the line
-Which of the following is used to control cylinder/actuator speed ? - -Needle valve
-What is the most probable effect of side-loaded cylinder motion? - -Binding
-The biggest maintenance problem in pneumatic systems is? - -Air leakage
-Which of the following is the purpose of a fluid power schematic diagram? - -To show
component's function and how they relate to the function of other components
-Which of the following is the best method to prevent cylinder rods from bending? - -
Mount the cylinder so that the force is transmitted through the cylinder centerline
-What creates air pressure in a pneumatic system? - -Mechanical compression
-What is not a function of a pneumatic air line? - -Controlling air flow direction
-Why should safety glasses be worn when threating pipes? - -To prevent metal shards
from penetrating your eyes
-The purpose of a fluid power motor is to convert fluid pressure to________motion? - -rotary
-If a two position solenoid operated valve has only one solenoid, a ________ is used to return
the spool to the de-energize position? - -spring
-What is the basic first step to analyze a pneumatic control system for the correct
operation? - -Observe the correct gauges for proper settings
-What could cause a pneumatic pressure regulator to fail to operate after being installed? -
-Installed in a reverse flow direction
-Which of the following is not a good troubleshooting method? - -Shotgun technique part
replacement
, -What has no affect on actuator speed? - -Water vapor in the system
-To pinpoint an air leak , use ________ on the suspected area? - -soap solution
-The _______ is the commonly used component for the memory logic element? - -control
relay
-A Fluid Power Component is in a circuit. Which of the following is not a test that may be
performed? - -Inspecting the O-rings for wear
-Which of the following is the Delta P if the gauge at the motor inlet is 380kpa and the
gauge at the motor outlet is 35kpa? - -345
-Which is not a side effect of bending a tube? - -Inner radius of the tube becomes thinner
-How can you increase the piston speed of a cylinder? - -By installing a quick exhaust valve
on the cylinder output
-What pneumatic component provides straight line motion? - -Cylinder
-Which of the following carries lubricant from a lubricator to the point of use in a
pneumatic system? - -Air flow
-Which of the following connects the compressed air source to the control devices? - -
Supply line
-Which of the following is the impact of air friction resistance in a pneumatic system? - -
Air pressure drops as air flows through the system
-Flow occurs between two connected points in a pneumatic system when ______ . - -a
pressure differential exists
-The function of a check valve is to? - -Prevent the reversal of flow in a piping system
-When a double acting cylinder is extending or retracting, the cylinder load includes the
load to be moved, internal mechanical friction of the cylinder and what other factor? - -
Back pressure
-In an air compressor system, which of the following is done with condensed water? - -
Drained from the system
-How is air compressed in a small compressor? - -Piston movement
-This fitting is to connect two branch circuits to a single supply line ______ . - -tee
-A needle valve is often used in pneumatic circuits ______ . - -to control actuator speed
