SACA C-304 Study Guide QUESTIONS
WITH CORRECT ANSWERS PASSED
What troubleshooting method is least effective? - correct answer ✔✔ Shotgun
What is the first step a technician must take when troubleshooting a a machine? - correct
answer ✔✔ Identify symptons
You are called over to a machine because the actuators are moving slow, you notice that the
pressure regulator has low pressure, you don't see or hear anything else. What is the next thing
you should check? - correct answer ✔✔ Pressure regulator settings
What is the common instrument used to troubleshoot pneumatic circuits? - correct answer ✔✔
Pressure gauge
A technician recently worked on a vacuum lift system to replace all the vacuum cups. Now the
lift is damaging the parts. You check the supply pressure and notice that it is fine. What is the
most likely cause? - correct answer ✔✔ Vaccum cups too big
Over contamination of the air supply in a pneumatic system is a sign of what? - correct answer
✔✔ Wrong element size
Damaged element
No filter installed
Filter bypassed
All of the above
, What is the last step a technician performs in removing LOTO? - correct answer ✔✔ Test
machine
A technician is testing a cylinder on a machine, the cap end port is opened, the cylinder is fully
retracted being held and air is coming out the cap end port. This is a sign that? - correct answer
✔✔ Piston seal worn
What troubleshooting method performs tests based on components known to cause the
symptom(s)? - correct answer ✔✔ Symptom and Cause
What troubleshooting method checks the actuator 1st, FCV 2nd, DCV 3rd? - correct answer ✔✔
Output-Back
What test should be performed to check if a cylinder has a bent rod - correct answer ✔✔ Check
with straight edge
A pneumatic motor will not start with correct pressure at the inlet port and exhaust at the
outlet port, what test tells you the issue is with the actuator? - correct answer ✔✔ Disconnect
load and check if motor starts
An actuator stopped moving, what is not a likely cause? - correct answer ✔✔ FCV check valve
stuck open
Worn seals
Blocked inlet port
Load increase
All of these can cause no acuator movement
What test will tell you if a pilot operated DCV spool is shifting, if an actuator is not moving? -
correct answer ✔✔ Disconnect actuator lines, activate valve and check for air out of ports
WITH CORRECT ANSWERS PASSED
What troubleshooting method is least effective? - correct answer ✔✔ Shotgun
What is the first step a technician must take when troubleshooting a a machine? - correct
answer ✔✔ Identify symptons
You are called over to a machine because the actuators are moving slow, you notice that the
pressure regulator has low pressure, you don't see or hear anything else. What is the next thing
you should check? - correct answer ✔✔ Pressure regulator settings
What is the common instrument used to troubleshoot pneumatic circuits? - correct answer ✔✔
Pressure gauge
A technician recently worked on a vacuum lift system to replace all the vacuum cups. Now the
lift is damaging the parts. You check the supply pressure and notice that it is fine. What is the
most likely cause? - correct answer ✔✔ Vaccum cups too big
Over contamination of the air supply in a pneumatic system is a sign of what? - correct answer
✔✔ Wrong element size
Damaged element
No filter installed
Filter bypassed
All of the above
, What is the last step a technician performs in removing LOTO? - correct answer ✔✔ Test
machine
A technician is testing a cylinder on a machine, the cap end port is opened, the cylinder is fully
retracted being held and air is coming out the cap end port. This is a sign that? - correct answer
✔✔ Piston seal worn
What troubleshooting method performs tests based on components known to cause the
symptom(s)? - correct answer ✔✔ Symptom and Cause
What troubleshooting method checks the actuator 1st, FCV 2nd, DCV 3rd? - correct answer ✔✔
Output-Back
What test should be performed to check if a cylinder has a bent rod - correct answer ✔✔ Check
with straight edge
A pneumatic motor will not start with correct pressure at the inlet port and exhaust at the
outlet port, what test tells you the issue is with the actuator? - correct answer ✔✔ Disconnect
load and check if motor starts
An actuator stopped moving, what is not a likely cause? - correct answer ✔✔ FCV check valve
stuck open
Worn seals
Blocked inlet port
Load increase
All of these can cause no acuator movement
What test will tell you if a pilot operated DCV spool is shifting, if an actuator is not moving? -
correct answer ✔✔ Disconnect actuator lines, activate valve and check for air out of ports
