PNEUMATIC SYSTEMS TECHNICIAN
PRACTICE EXAM Questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary function of a pneumatic system?
A. Store electrical energy
B. Transmit power using compressed air
C. Generate hydraulic pressure
D. Convert heat into motion
Correct Answer: B
Rationale: Pneumatic systems use compressed air to transmit and
control energy for mechanical motion.
2. Which gas is most commonly used in pneumatic systems?
A. Oxygen
B. Nitrogen
C. Compressed air
D. Carbon dioxide
Correct Answer: C
Rationale: Compressed air is widely used due to availability, safety,
and cost-effectiveness.
,3. What component compresses air in a pneumatic system?
A. Valve
B. Compressor
C. Actuator
D. Regulator
Correct Answer: B
Rationale: The compressor increases air pressure for system
operation.
4. What is the function of a filter in a pneumatic system?
A. Increase pressure
B. Remove contaminants
C. Store air
D. Measure flow
Correct Answer: B
Rationale: Filters remove moisture, dust, and particles from
compressed air.
5. What does a pressure regulator do?
A. Stores compressed air
B. Controls air pressure output
C. Converts air to electricity
D. Lubricates the system
Correct Answer: B
Rationale: It maintains consistent downstream pressure.
,6. Which component directs airflow in a pneumatic system?
A. Cylinder
B. Valve
C. Compressor
D. Filter
Correct Answer: B
Rationale: Valves control the direction, start, and stop of airflow.
7. What is the main purpose of a pneumatic cylinder?
A. Store air
B. Convert air pressure into linear motion
C. Filter air
D. Compress air
Correct Answer: B
Rationale: Cylinders convert compressed air into mechanical
movement.
8. What type of energy is used in pneumatics?
A. Electrical
B. Hydraulic
C. Mechanical potential
D. Compressed air energy
Correct Answer: D
Rationale: Pneumatics rely on stored energy in compressed air.
, 9. What device removes moisture from compressed air?
A. Lubricator
B. Dryer
C. Valve
D. Gauge
Correct Answer: B
Rationale: Air dryers remove moisture to prevent corrosion and
damage.
10. What is the purpose of a lubricator?
A. Increase pressure
B. Add oil mist to air
C. Measure flow
D. Filter particles
Correct Answer: B
Rationale: It lubricates internal components to reduce wear.
11. What does SCFM stand for?
A. Standard Cubic Feet per Minute
B. System Control Flow Meter
C. Static Compression Flow Model
D. Supply Current Flow Measurement
Correct Answer: A
Rationale: SCFM measures air flow rate under standard
conditions.
PRACTICE EXAM Questions With Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary function of a pneumatic system?
A. Store electrical energy
B. Transmit power using compressed air
C. Generate hydraulic pressure
D. Convert heat into motion
Correct Answer: B
Rationale: Pneumatic systems use compressed air to transmit and
control energy for mechanical motion.
2. Which gas is most commonly used in pneumatic systems?
A. Oxygen
B. Nitrogen
C. Compressed air
D. Carbon dioxide
Correct Answer: C
Rationale: Compressed air is widely used due to availability, safety,
and cost-effectiveness.
,3. What component compresses air in a pneumatic system?
A. Valve
B. Compressor
C. Actuator
D. Regulator
Correct Answer: B
Rationale: The compressor increases air pressure for system
operation.
4. What is the function of a filter in a pneumatic system?
A. Increase pressure
B. Remove contaminants
C. Store air
D. Measure flow
Correct Answer: B
Rationale: Filters remove moisture, dust, and particles from
compressed air.
5. What does a pressure regulator do?
A. Stores compressed air
B. Controls air pressure output
C. Converts air to electricity
D. Lubricates the system
Correct Answer: B
Rationale: It maintains consistent downstream pressure.
,6. Which component directs airflow in a pneumatic system?
A. Cylinder
B. Valve
C. Compressor
D. Filter
Correct Answer: B
Rationale: Valves control the direction, start, and stop of airflow.
7. What is the main purpose of a pneumatic cylinder?
A. Store air
B. Convert air pressure into linear motion
C. Filter air
D. Compress air
Correct Answer: B
Rationale: Cylinders convert compressed air into mechanical
movement.
8. What type of energy is used in pneumatics?
A. Electrical
B. Hydraulic
C. Mechanical potential
D. Compressed air energy
Correct Answer: D
Rationale: Pneumatics rely on stored energy in compressed air.
, 9. What device removes moisture from compressed air?
A. Lubricator
B. Dryer
C. Valve
D. Gauge
Correct Answer: B
Rationale: Air dryers remove moisture to prevent corrosion and
damage.
10. What is the purpose of a lubricator?
A. Increase pressure
B. Add oil mist to air
C. Measure flow
D. Filter particles
Correct Answer: B
Rationale: It lubricates internal components to reduce wear.
11. What does SCFM stand for?
A. Standard Cubic Feet per Minute
B. System Control Flow Meter
C. Static Compression Flow Model
D. Supply Current Flow Measurement
Correct Answer: A
Rationale: SCFM measures air flow rate under standard
conditions.