Maryland TAB Air Balance Technician
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
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1. What is the primary role and scope of work for a Maryland Testing,
Adjusting, and Balancing (TAB) Air Balance Technician in HVAC systems
commissioning?
A. Designing HVAC systems and selecting mechanical equipment for
buildings
B. Performing electrical wiring, controls installation, and system automation
programming
C. Measuring, adjusting, and verifying airflow and hydronic flow in HVAC
systems to meet design specifications
D. Inspecting building structural integrity and verifying compliance with
architectural codes
The correct answer is C because a TAB Air Balance Technician is responsible
for measuring, adjusting, and verifying airflow and hydronic flow in HVAC
systems to ensure performance matches design intent and commissioning
requirements.
2. Which organization is most commonly recognized in Maryland and
U.S. industry standards for certifying TAB technicians?
,A. National Fire Protection Association (NFPA)
B. Associated Air Balance Council (AABC)
C. American Society of Civil Engineers (ASCE)
D. National Electrical Code Board (NECB)
The correct answer is B because the Associated Air Balance Council (AABC)
is one of the primary certifying bodies for TAB technicians in HVAC testing
and balancing work.
3. What is a fundamental requirement before a TAB technician performs
official system balancing work on a commercial HVAC project?
A. A valid real estate license and building ownership authorization
B. Certification by AABC, NEBB, or TABB under a qualified TAB firm
C. Completion of a plumbing apprenticeship program
D. Registration with the state fire marshal’s office
The correct answer is B because TAB technicians must typically be certified
through recognized organizations such as AABC, NEBB, or TABB and work
under an approved TAB firm.
4. What is the main purpose of Testing, Adjusting, and Balancing (TAB) in
HVAC commissioning?
A. To install ductwork and refrigerant piping systems
B. To ensure HVAC systems deliver intended airflow, pressure, and
temperature performance
C. To design electrical control panels for HVAC automation
D. To certify building energy efficiency ratings under LEED
The correct answer is B because TAB ensures HVAC systems operate
according to design specifications by measuring and adjusting airflow,
water flow, and system performance.
5. Which of the following best describes a typical phase when TAB work
is performed in a construction project?
, A. Before any HVAC equipment is installed
B. During architectural design and blueprint development
C. After HVAC installation but before final system turnover and occupancy
D. After building demolition and site clearing
The correct answer is C because TAB is typically performed after HVAC
installation is substantially complete and before final commissioning and
occupancy.
6. Which of the following instruments is most commonly used by TAB
technicians to measure airflow in ducts?
A. Oscilloscope
B. Pitot tube
C. Geiger counter
D. Tachometer for engines
The correct answer is B because a Pitot tube is a standard instrument used
to measure air velocity and airflow in duct systems during TAB procedures.
7. What does hydronic balancing primarily involve in HVAC systems?
A. Adjusting electrical voltage to HVAC motors
B. Balancing water flow in heating and cooling piping systems
C. Measuring building structural loads
D. Installing insulation in walls and ceilings
The correct answer is B because hydronic balancing involves adjusting and
verifying water flow in HVAC piping systems to ensure proper heat transfer
and system efficiency.
8. Which document is most commonly used as a guiding standard for
TAB procedures in the industry?
A. OSHA construction safety handbook only
B. ASHRAE standards and SMACNA guidelines
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationale 2026 Q&A| Instant
Download Pdf
1. What is the primary role and scope of work for a Maryland Testing,
Adjusting, and Balancing (TAB) Air Balance Technician in HVAC systems
commissioning?
A. Designing HVAC systems and selecting mechanical equipment for
buildings
B. Performing electrical wiring, controls installation, and system automation
programming
C. Measuring, adjusting, and verifying airflow and hydronic flow in HVAC
systems to meet design specifications
D. Inspecting building structural integrity and verifying compliance with
architectural codes
The correct answer is C because a TAB Air Balance Technician is responsible
for measuring, adjusting, and verifying airflow and hydronic flow in HVAC
systems to ensure performance matches design intent and commissioning
requirements.
2. Which organization is most commonly recognized in Maryland and
U.S. industry standards for certifying TAB technicians?
,A. National Fire Protection Association (NFPA)
B. Associated Air Balance Council (AABC)
C. American Society of Civil Engineers (ASCE)
D. National Electrical Code Board (NECB)
The correct answer is B because the Associated Air Balance Council (AABC)
is one of the primary certifying bodies for TAB technicians in HVAC testing
and balancing work.
3. What is a fundamental requirement before a TAB technician performs
official system balancing work on a commercial HVAC project?
A. A valid real estate license and building ownership authorization
B. Certification by AABC, NEBB, or TABB under a qualified TAB firm
C. Completion of a plumbing apprenticeship program
D. Registration with the state fire marshal’s office
The correct answer is B because TAB technicians must typically be certified
through recognized organizations such as AABC, NEBB, or TABB and work
under an approved TAB firm.
4. What is the main purpose of Testing, Adjusting, and Balancing (TAB) in
HVAC commissioning?
A. To install ductwork and refrigerant piping systems
B. To ensure HVAC systems deliver intended airflow, pressure, and
temperature performance
C. To design electrical control panels for HVAC automation
D. To certify building energy efficiency ratings under LEED
The correct answer is B because TAB ensures HVAC systems operate
according to design specifications by measuring and adjusting airflow,
water flow, and system performance.
5. Which of the following best describes a typical phase when TAB work
is performed in a construction project?
, A. Before any HVAC equipment is installed
B. During architectural design and blueprint development
C. After HVAC installation but before final system turnover and occupancy
D. After building demolition and site clearing
The correct answer is C because TAB is typically performed after HVAC
installation is substantially complete and before final commissioning and
occupancy.
6. Which of the following instruments is most commonly used by TAB
technicians to measure airflow in ducts?
A. Oscilloscope
B. Pitot tube
C. Geiger counter
D. Tachometer for engines
The correct answer is B because a Pitot tube is a standard instrument used
to measure air velocity and airflow in duct systems during TAB procedures.
7. What does hydronic balancing primarily involve in HVAC systems?
A. Adjusting electrical voltage to HVAC motors
B. Balancing water flow in heating and cooling piping systems
C. Measuring building structural loads
D. Installing insulation in walls and ceilings
The correct answer is B because hydronic balancing involves adjusting and
verifying water flow in HVAC piping systems to ensure proper heat transfer
and system efficiency.
8. Which document is most commonly used as a guiding standard for
TAB procedures in the industry?
A. OSHA construction safety handbook only
B. ASHRAE standards and SMACNA guidelines
