Michigan Pneumatic Technician Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. Air compressors are classified by the method they use to pressurize
air. Which type uses pistons and cylinders?
A. Centrifugal
B. Rotary vane
C. Reciprocating
D. Axial
Reciprocating compressors use pistons moving within cylinders to
compress air in discrete strokes.
2. In a pneumatic system, what is the primary purpose of an air receiver
tank?
A. To cool hydraulic fluid
B. To filter contaminants
C. To store compressed air and reduce pulsation
D. To increase turbine speed
An air receiver stores compressed air, helps smooth pressure fluctuations,
and allows cooling and moisture separation.
3. What component removes oil and water aerosols from compressed
air?
A. Silencer
B. Check valve
, C. Pressure switch
D. Air filter-separator
Air filter-separators trap and remove oil and water droplets from
compressed air to protect downstream components.
4. What device automatically drains liquid from the bottom of an air
receiver?
A. Pressure gauge
B. Relief valve
C. Automatic float drain
D. Flow meter
An automatic float drain opens when liquid reaches a set level to remove
condensate.
5. What is the purpose of a pressure regulator in a pneumatic circuit?
A. Increase air temperature
B. Lubricate the actuator
C. Maintain a constant output pressure
D. Reverse airflow
A pressure regulator adjusts and maintains a set downstream air pressure
regardless of upstream fluctuations.
6. Which safety device prevents over-pressurization of a compressor
system?
A. Check valve
B. Sight glass
C. Flow restrictor
D. Pressure relief valve
Pressure relief valves open at a predetermined limit to protect the system
from excessive pressure.
7. What is the typical unit for measuring compressed air pressure?
A. Liters
, B. Watts
C. PSI (pounds per square inch)
D. Newton-meters
PSI quantifies force per unit area, the standard unit for compressed air
pressure.
8. In a pneumatic circuit, what does a 5/2 valve indicate?
A. Five ports, two actuating positions
B. Five ports, two switching positions
C. Five positions, two ports
D. Two ports, five positions
A 5/2 valve has five connection ports and two distinct flow paths
(positions).
9. Which component converts electrical signals to pneumatic output?
A. Flow meter
B. Electro-pneumatic transducer
C. Pressure tank
D. Relief valve
Electro-pneumatic transducers receive electrical input and modulate air
pressure accordingly.
10. What is “dead-band” in a pneumatic control?
A. A vacuum leak
B. A filter clog
C. Range where input changes produce no output change
D. Over-pressurization condition
Dead-band refers to a span of input change with no corresponding output
response.
11. What type of actuator uses a diaphragm?
A. Electric motor
B. Diaphragm actuator
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. Air compressors are classified by the method they use to pressurize
air. Which type uses pistons and cylinders?
A. Centrifugal
B. Rotary vane
C. Reciprocating
D. Axial
Reciprocating compressors use pistons moving within cylinders to
compress air in discrete strokes.
2. In a pneumatic system, what is the primary purpose of an air receiver
tank?
A. To cool hydraulic fluid
B. To filter contaminants
C. To store compressed air and reduce pulsation
D. To increase turbine speed
An air receiver stores compressed air, helps smooth pressure fluctuations,
and allows cooling and moisture separation.
3. What component removes oil and water aerosols from compressed
air?
A. Silencer
B. Check valve
, C. Pressure switch
D. Air filter-separator
Air filter-separators trap and remove oil and water droplets from
compressed air to protect downstream components.
4. What device automatically drains liquid from the bottom of an air
receiver?
A. Pressure gauge
B. Relief valve
C. Automatic float drain
D. Flow meter
An automatic float drain opens when liquid reaches a set level to remove
condensate.
5. What is the purpose of a pressure regulator in a pneumatic circuit?
A. Increase air temperature
B. Lubricate the actuator
C. Maintain a constant output pressure
D. Reverse airflow
A pressure regulator adjusts and maintains a set downstream air pressure
regardless of upstream fluctuations.
6. Which safety device prevents over-pressurization of a compressor
system?
A. Check valve
B. Sight glass
C. Flow restrictor
D. Pressure relief valve
Pressure relief valves open at a predetermined limit to protect the system
from excessive pressure.
7. What is the typical unit for measuring compressed air pressure?
A. Liters
, B. Watts
C. PSI (pounds per square inch)
D. Newton-meters
PSI quantifies force per unit area, the standard unit for compressed air
pressure.
8. In a pneumatic circuit, what does a 5/2 valve indicate?
A. Five ports, two actuating positions
B. Five ports, two switching positions
C. Five positions, two ports
D. Two ports, five positions
A 5/2 valve has five connection ports and two distinct flow paths
(positions).
9. Which component converts electrical signals to pneumatic output?
A. Flow meter
B. Electro-pneumatic transducer
C. Pressure tank
D. Relief valve
Electro-pneumatic transducers receive electrical input and modulate air
pressure accordingly.
10. What is “dead-band” in a pneumatic control?
A. A vacuum leak
B. A filter clog
C. Range where input changes produce no output change
D. Over-pressurization condition
Dead-band refers to a span of input change with no corresponding output
response.
11. What type of actuator uses a diaphragm?
A. Electric motor
B. Diaphragm actuator
