ASSE 6020 Medical Gas Systems
Inspector Practice Exam 100 Questions
And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A
Instant Download Pdf
1. What is the primary responsibility of a medical gas systems inspector?
a) Installing piping systems
b) Repairing gas outlets
c) Verifying installation compliance with NFPA 99 and ASSE standards
d) Certifying medical equipment
Rationale: The inspector ensures installations comply with NFPA 99 and ASSE
6000 standards for safety and functionality.
2. The ASSE 6020 certification is specifically intended for individuals who:
a) Design medical gas systems
b) Install and braze copper piping
c) Inspect completed medical gas and vacuum systems
d) Verify gas purity levels
Rationale: ASSE 6020 focuses on inspection and compliance verification of
completed systems, not installation or verification testing.
3. According to NFPA 99, what is the maximum allowable leakage rate for a
medical gas piping system?
,a) 0.001 psi per minute
b) 1 psi per hour
c) 0 psi per hour (no leakage permitted)
d) 2 psi per 24 hours
Rationale: NFPA 99 requires zero leakage in medical gas piping to maintain
patient safety.
4. What is the minimum size for medical gas identification labels on piping?
a) ½ inch
b) ¼ inch
c) ⅓ inch
d) 1 inch
Rationale: NFPA 99 requires labels with at least ¼-inch lettering for clear
identification.
5. The installer qualifications for medical gas systems are covered under
which ASSE standard?
a) ASSE 6010
b) ASSE 6030
c) ASSE 6020
d) ASSE 6050
Rationale: ASSE 6010 defines the qualifications for medical gas system
installers.
6. What is the required color for oxygen pipeline identification?
a) Yellow
b) Green
c) Blue
d) White
, Rationale: Oxygen piping is color-coded green according to NFPA 99 for quick
recognition.
7. What is the minimum distance between medical gas piping and electrical
conduits?
a) 1 inch
b) 3 inches
c) 6 inches
d) 12 inches
Rationale: NFPA 99 requires a minimum 6-inch separation to avoid electrical
interference and hazards.
8. Who is responsible for the initial pressure test on new medical gas piping
installations?
a) The facility manager
b) The installer
c) The verifier
d) The inspector
Rationale: The installer must perform and document the initial pressure test
before verification.
9. What type of tubing must be used for medical gas systems?
a) Type L copper
b) Type K copper
c) Type L or K copper, cleaned for oxygen service
d) Type M copper
Rationale: NFPA 99 allows Type L or K copper tubing cleaned for oxygen
service.
Inspector Practice Exam 100 Questions
And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A
Instant Download Pdf
1. What is the primary responsibility of a medical gas systems inspector?
a) Installing piping systems
b) Repairing gas outlets
c) Verifying installation compliance with NFPA 99 and ASSE standards
d) Certifying medical equipment
Rationale: The inspector ensures installations comply with NFPA 99 and ASSE
6000 standards for safety and functionality.
2. The ASSE 6020 certification is specifically intended for individuals who:
a) Design medical gas systems
b) Install and braze copper piping
c) Inspect completed medical gas and vacuum systems
d) Verify gas purity levels
Rationale: ASSE 6020 focuses on inspection and compliance verification of
completed systems, not installation or verification testing.
3. According to NFPA 99, what is the maximum allowable leakage rate for a
medical gas piping system?
,a) 0.001 psi per minute
b) 1 psi per hour
c) 0 psi per hour (no leakage permitted)
d) 2 psi per 24 hours
Rationale: NFPA 99 requires zero leakage in medical gas piping to maintain
patient safety.
4. What is the minimum size for medical gas identification labels on piping?
a) ½ inch
b) ¼ inch
c) ⅓ inch
d) 1 inch
Rationale: NFPA 99 requires labels with at least ¼-inch lettering for clear
identification.
5. The installer qualifications for medical gas systems are covered under
which ASSE standard?
a) ASSE 6010
b) ASSE 6030
c) ASSE 6020
d) ASSE 6050
Rationale: ASSE 6010 defines the qualifications for medical gas system
installers.
6. What is the required color for oxygen pipeline identification?
a) Yellow
b) Green
c) Blue
d) White
, Rationale: Oxygen piping is color-coded green according to NFPA 99 for quick
recognition.
7. What is the minimum distance between medical gas piping and electrical
conduits?
a) 1 inch
b) 3 inches
c) 6 inches
d) 12 inches
Rationale: NFPA 99 requires a minimum 6-inch separation to avoid electrical
interference and hazards.
8. Who is responsible for the initial pressure test on new medical gas piping
installations?
a) The facility manager
b) The installer
c) The verifier
d) The inspector
Rationale: The installer must perform and document the initial pressure test
before verification.
9. What type of tubing must be used for medical gas systems?
a) Type L copper
b) Type K copper
c) Type L or K copper, cleaned for oxygen service
d) Type M copper
Rationale: NFPA 99 allows Type L or K copper tubing cleaned for oxygen
service.
