SACA – Pneumatics Final Exam
Questions & Answers.
Which of the following is the number of branch circuits that a pneumatic cross fitting has? - CORRECT
ANSWER 3
What is required to operate a two position solenoid operated DCV? - CORRECT ANSWER A current flow
______ will not be removed from air by a filter? - CORRECT ANSWER Water vapor
A technician should use extreme caution when disconnecting air lines even though LOTO procedures are
in place because of? - CORRECT ANSWER Unrelieved pressure can cause whiplash of the line
Which of the following is used to control cylinder/actuator speed ? - CORRECT ANSWER Needle valve
What is the most probable effect of side-loaded cylinder motion? - CORRECT ANSWER Binding
The biggest maintenance problem in pneumatic systems is? - CORRECT ANSWER Air leakage
Which of the following is the purpose of a fluid power schematic diagram? - CORRECT ANSWER 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? - CORRECT ANSWER
Mount the cylinder so that the force is transmitted through the cylinder centerline
What creates air pressure in a pneumatic system? - CORRECT ANSWER Mechanical compression
What is not a function of a pneumatic air line? - CORRECT ANSWER Controlling air flow direction
, Why should safety glasses be worn when threating pipes? - CORRECT ANSWER To prevent metal shards
from penetrating your eyes
The purpose of a fluid power motor is to convert fluid pressure to________motion? - CORRECT ANSWER
rotary
If a two position solenoid operated valve has only one solenoid, a ________ is used to return the spool
to the de-energize position? - CORRECT ANSWER spring
What is the basic first step to analyze a pneumatic control system for the correct operation? - CORRECT
ANSWER Observe the correct gauges for proper settings
What could cause a pneumatic pressure regulator to fail to operate after being installed? - CORRECT
ANSWER Installed in a reverse flow direction
Which of the following is not a good troubleshooting method? - CORRECT ANSWER Shotgun technique
part replacement
What has no affect on actuator speed? - CORRECT ANSWER Water vapor in the system
To pinpoint an air leak , use ________ on the suspected area? - CORRECT ANSWER soap solution
The _______ is the commonly used component for the memory logic element? - CORRECT ANSWER
control relay
A Fluid Power Component is in a circuit. Which of the following is not a test that may be performed? -
CORRECT ANSWER 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? - CORRECT ANSWER 345
Questions & Answers.
Which of the following is the number of branch circuits that a pneumatic cross fitting has? - CORRECT
ANSWER 3
What is required to operate a two position solenoid operated DCV? - CORRECT ANSWER A current flow
______ will not be removed from air by a filter? - CORRECT ANSWER Water vapor
A technician should use extreme caution when disconnecting air lines even though LOTO procedures are
in place because of? - CORRECT ANSWER Unrelieved pressure can cause whiplash of the line
Which of the following is used to control cylinder/actuator speed ? - CORRECT ANSWER Needle valve
What is the most probable effect of side-loaded cylinder motion? - CORRECT ANSWER Binding
The biggest maintenance problem in pneumatic systems is? - CORRECT ANSWER Air leakage
Which of the following is the purpose of a fluid power schematic diagram? - CORRECT ANSWER 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? - CORRECT ANSWER
Mount the cylinder so that the force is transmitted through the cylinder centerline
What creates air pressure in a pneumatic system? - CORRECT ANSWER Mechanical compression
What is not a function of a pneumatic air line? - CORRECT ANSWER Controlling air flow direction
, Why should safety glasses be worn when threating pipes? - CORRECT ANSWER To prevent metal shards
from penetrating your eyes
The purpose of a fluid power motor is to convert fluid pressure to________motion? - CORRECT ANSWER
rotary
If a two position solenoid operated valve has only one solenoid, a ________ is used to return the spool
to the de-energize position? - CORRECT ANSWER spring
What is the basic first step to analyze a pneumatic control system for the correct operation? - CORRECT
ANSWER Observe the correct gauges for proper settings
What could cause a pneumatic pressure regulator to fail to operate after being installed? - CORRECT
ANSWER Installed in a reverse flow direction
Which of the following is not a good troubleshooting method? - CORRECT ANSWER Shotgun technique
part replacement
What has no affect on actuator speed? - CORRECT ANSWER Water vapor in the system
To pinpoint an air leak , use ________ on the suspected area? - CORRECT ANSWER soap solution
The _______ is the commonly used component for the memory logic element? - CORRECT ANSWER
control relay
A Fluid Power Component is in a circuit. Which of the following is not a test that may be performed? -
CORRECT ANSWER 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? - CORRECT ANSWER 345
