Maryland Backflow Prevention Tester
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
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1. Which statement best describes the primary purpose of Maryland’s
backflow prevention tester certification program?
A. To authorize general plumbing installation without supervision
B. To ensure individuals are trained and approved to test, inspect, and
report on backflow prevention assemblies
C. To license water utility companies to design municipal systems
D. To replace the need for plumbing apprenticeships in the state
Answer: B
The certification exists to ensure technicians are properly trained and
approved to perform testing, inspection, and reporting on backflow
prevention assemblies, which protect potable water systems from
contamination.
2. In Maryland, a certified backflow prevention tester is primarily
responsible for which task?
A. Designing residential plumbing systems
B. Installing electrical water heaters
, C. Testing, inspecting, and documenting backflow prevention
assemblies
D. Approving municipal water treatment chemicals
Answer: C
Certified testers are specifically authorized to evaluate backflow
prevention devices through testing procedures and submit formal
documentation of results, ensuring compliance with water safety
regulations.
3. What is the main risk that backflow prevention devices are designed to
prevent?
A. Electrical shock in plumbing systems
B. Contamination of potable water supplies by reverse flow
C. Pipe corrosion due to hard water
D. Excessive water pressure in municipal systems
Answer: B
Backflow prevention devices stop contaminated water from reversing
into clean drinking water systems, which could otherwise introduce
hazardous substances into potable water supplies.
4. Which Maryland authority approves backflow prevention certification
programs?
A. Maryland Department of Transportation
B. Maryland State Board of Plumbing
C. Environmental Protection Agency
D. Maryland Health Insurance Commission
Answer: B
The Maryland State Board of Plumbing is responsible for approving
certification programs that train and qualify backflow prevention
technicians.
,5. What is a minimum training requirement for Maryland-approved
backflow certification programs?
A. 10 hours of online study only
B. 16-hour field observation requirement
C. 32-hour structured training program
D. 100-hour apprenticeship only
Answer: C
Maryland requires completion of a 32-hour approved training
program covering theory, field testing, and regulatory compliance for
certification eligibility.
6. Which of the following is typically included in Maryland backflow
certification training curriculum?
A. Automotive engine diagnostics
B. Field testing procedures and troubleshooting
C. Electrical wiring of commercial buildings
D. HVAC refrigerant recovery systems
Answer: B
Training includes practical field testing procedures and
troubleshooting methods to ensure technicians can properly evaluate
backflow assemblies.
7. Who is eligible to become a certified backflow prevention technician in
Maryland after training?
A. Any homeowner
B. Only licensed plumbers or trained individuals who complete
approved certification
C. Only water treatment engineers
D. Only government inspectors
Answer: B
Eligibility is limited to individuals who complete an approved
, certification program, often within plumbing or related trades,
ensuring technical competence.
8. What is required for instructors in Maryland backflow certification
programs?
A. No prior experience is needed
B. Must be certified instructors with recognized industry credentials
C. Must be retired plumbers only
D. Must be engineers with PhDs only
Answer: B
Instructors must hold recognized certifications and qualifications,
ensuring that training is delivered by experienced and credentialed
professionals.
9. How often are certified backflow prevention technicians typically
required to renew certification in many Maryland-approved programs?
A. Every year
B. Every 5 years or per program recertification standards
C. Every 10 years
D. Never required once certified
Answer: B
Recertification is generally required on a periodic basis, often every
five years, to ensure technicians maintain up-to-date knowledge and
skills.
10. What type of facility is required for Maryland-approved backflow
training programs?
A. A residential home setting
B. A facility with adequate training space and testing apparatus
C. A mobile van only
D. An online-only classroom
Answer: B
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1. Which statement best describes the primary purpose of Maryland’s
backflow prevention tester certification program?
A. To authorize general plumbing installation without supervision
B. To ensure individuals are trained and approved to test, inspect, and
report on backflow prevention assemblies
C. To license water utility companies to design municipal systems
D. To replace the need for plumbing apprenticeships in the state
Answer: B
The certification exists to ensure technicians are properly trained and
approved to perform testing, inspection, and reporting on backflow
prevention assemblies, which protect potable water systems from
contamination.
2. In Maryland, a certified backflow prevention tester is primarily
responsible for which task?
A. Designing residential plumbing systems
B. Installing electrical water heaters
, C. Testing, inspecting, and documenting backflow prevention
assemblies
D. Approving municipal water treatment chemicals
Answer: C
Certified testers are specifically authorized to evaluate backflow
prevention devices through testing procedures and submit formal
documentation of results, ensuring compliance with water safety
regulations.
3. What is the main risk that backflow prevention devices are designed to
prevent?
A. Electrical shock in plumbing systems
B. Contamination of potable water supplies by reverse flow
C. Pipe corrosion due to hard water
D. Excessive water pressure in municipal systems
Answer: B
Backflow prevention devices stop contaminated water from reversing
into clean drinking water systems, which could otherwise introduce
hazardous substances into potable water supplies.
4. Which Maryland authority approves backflow prevention certification
programs?
A. Maryland Department of Transportation
B. Maryland State Board of Plumbing
C. Environmental Protection Agency
D. Maryland Health Insurance Commission
Answer: B
The Maryland State Board of Plumbing is responsible for approving
certification programs that train and qualify backflow prevention
technicians.
,5. What is a minimum training requirement for Maryland-approved
backflow certification programs?
A. 10 hours of online study only
B. 16-hour field observation requirement
C. 32-hour structured training program
D. 100-hour apprenticeship only
Answer: C
Maryland requires completion of a 32-hour approved training
program covering theory, field testing, and regulatory compliance for
certification eligibility.
6. Which of the following is typically included in Maryland backflow
certification training curriculum?
A. Automotive engine diagnostics
B. Field testing procedures and troubleshooting
C. Electrical wiring of commercial buildings
D. HVAC refrigerant recovery systems
Answer: B
Training includes practical field testing procedures and
troubleshooting methods to ensure technicians can properly evaluate
backflow assemblies.
7. Who is eligible to become a certified backflow prevention technician in
Maryland after training?
A. Any homeowner
B. Only licensed plumbers or trained individuals who complete
approved certification
C. Only water treatment engineers
D. Only government inspectors
Answer: B
Eligibility is limited to individuals who complete an approved
, certification program, often within plumbing or related trades,
ensuring technical competence.
8. What is required for instructors in Maryland backflow certification
programs?
A. No prior experience is needed
B. Must be certified instructors with recognized industry credentials
C. Must be retired plumbers only
D. Must be engineers with PhDs only
Answer: B
Instructors must hold recognized certifications and qualifications,
ensuring that training is delivered by experienced and credentialed
professionals.
9. How often are certified backflow prevention technicians typically
required to renew certification in many Maryland-approved programs?
A. Every year
B. Every 5 years or per program recertification standards
C. Every 10 years
D. Never required once certified
Answer: B
Recertification is generally required on a periodic basis, often every
five years, to ensure technicians maintain up-to-date knowledge and
skills.
10. What type of facility is required for Maryland-approved backflow
training programs?
A. A residential home setting
B. A facility with adequate training space and testing apparatus
C. A mobile van only
D. An online-only classroom
Answer: B
