TFM 13 STUDY GUIDE 2026/2027
TEXAS RESIDENTIAL FIRE ALARM | HOUSEHOLD SYSTEMS TECHNICAL
REVIEW
NFPA 72 | IRC | UL STANDARDS | TEXAS SFMO
100 Technical Questions with Detailed Rationales & Code References
Graded A+ | Complete Residential Systems Review
SECTION 1: RESIDENTIAL SYSTEM CLASSIFICATIONS (Questions 1-10)
Q1: According to NFPA 72 (2026 Edition), a "Household Fire Alarm System" is distinguished
from a "Single-Station Alarm" by which characteristic?
A. The type of sensor used (ionization vs. photoelectric).
B. [CORRECT] The presence of a control panel and the ability to supervise initiating
devices.
C. The requirement for 120 VAC power.
D. The decibel level of the notification appliance.
Correct Answer: B
Rationale: A single-station alarm is a self-contained unit detecting smoke and sounding its own
alarm. A household fire alarm system utilizes a control panel, separate initiating devices (smoke
detectors), and notification appliances, often with remote monitoring capabilities.**
RESIDENTIAL TIP: If it has a panel and keypads, it's a system. If it's just a unit on the
ceiling, it's a single-station alarm.
,Q2: A "Multiple-Station Alarm" is defined as:
A. Two single-station alarms connected together.
B. [CORRECT] A single-station alarm that can be interconnected to other similar alarms.
C. A smoke alarm connected to a security system.
D. A detector connected to a fire alarm control panel.
Correct Answer: B
Rationale: Per NFPA 72, a multiple-station alarm is essentially a single-station device that
includes provisions for interconnection (hardwired or wireless) so that activation of one unit
causes all interconnected units to alarm.**
Q3: Which occupancy type falls under the scope of NFPA 72 Chapter 29 (Household Fire Alarm
Systems)?
A. A 4-story apartment building.
B. [CORRECT] A single-family dwelling.
C. A hotel.
D. A hospital.
Correct Answer: B
Rationale: Chapter 29 covers single-family dwellings, manufactured homes, two-family
dwellings, and townhouses. Large apartment buildings (4+ stories) and hotels fall under
commercial codes (Chapter 17).**
Q4: Under the International Residential Code (IRC), a "Townhouse" is defined as:
A. A single-family dwelling in a group of three or more attached units with property lines
separating each unit.
B. [CORRECT] A single-family dwelling in a group of three or more attached units where
each unit extends from foundation to roof without open space.
,C. Any building with more than 2 units.
D. A two-family dwelling.
Correct Answer: B
Rationale: The key distinction for townhouses (R202) is that they are considered single-family
dwellings but attached. Fire-rated separation is required between units.**
Q5: (Select-All-That-Apply) Which of the following are considered "Dwelling Units" requiring
smoke alarm protection under the IRC? Select all that apply.
A. [CORRECT] A detached garage with a habitable second story.
B. [CORRECT] A single-family home.
C. [CORRECT] A townhouse.
D. A detached storage shed.
Correct Answers: A, B, C
Rationale: The IRC requires protection in dwelling units. A detached garage with a habitable
space is a dwelling unit. A shed is not.**
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TEXAS RESIDENTIAL FIRE ALARM | HOUSEHOLD SYSTEMS TECHNICAL
REVIEW
NFPA 72 | IRC | UL STANDARDS | TEXAS SFMO
100 Technical Questions with Detailed Rationales & Code References
Graded A+ | Complete Residential Systems Review
SECTION 1: RESIDENTIAL SYSTEM CLASSIFICATIONS (Questions 1-10)
Q1: According to NFPA 72 (2026 Edition), a "Household Fire Alarm System" is distinguished
from a "Single-Station Alarm" by which characteristic?
A. The type of sensor used (ionization vs. photoelectric).
B. [CORRECT] The presence of a control panel and the ability to supervise initiating
devices.
C. The requirement for 120 VAC power.
D. The decibel level of the notification appliance.
Correct Answer: B
Rationale: A single-station alarm is a self-contained unit detecting smoke and sounding its own
alarm. A household fire alarm system utilizes a control panel, separate initiating devices (smoke
detectors), and notification appliances, often with remote monitoring capabilities.**
RESIDENTIAL TIP: If it has a panel and keypads, it's a system. If it's just a unit on the
ceiling, it's a single-station alarm.
,Q2: A "Multiple-Station Alarm" is defined as:
A. Two single-station alarms connected together.
B. [CORRECT] A single-station alarm that can be interconnected to other similar alarms.
C. A smoke alarm connected to a security system.
D. A detector connected to a fire alarm control panel.
Correct Answer: B
Rationale: Per NFPA 72, a multiple-station alarm is essentially a single-station device that
includes provisions for interconnection (hardwired or wireless) so that activation of one unit
causes all interconnected units to alarm.**
Q3: Which occupancy type falls under the scope of NFPA 72 Chapter 29 (Household Fire Alarm
Systems)?
A. A 4-story apartment building.
B. [CORRECT] A single-family dwelling.
C. A hotel.
D. A hospital.
Correct Answer: B
Rationale: Chapter 29 covers single-family dwellings, manufactured homes, two-family
dwellings, and townhouses. Large apartment buildings (4+ stories) and hotels fall under
commercial codes (Chapter 17).**
Q4: Under the International Residential Code (IRC), a "Townhouse" is defined as:
A. A single-family dwelling in a group of three or more attached units with property lines
separating each unit.
B. [CORRECT] A single-family dwelling in a group of three or more attached units where
each unit extends from foundation to roof without open space.
,C. Any building with more than 2 units.
D. A two-family dwelling.
Correct Answer: B
Rationale: The key distinction for townhouses (R202) is that they are considered single-family
dwellings but attached. Fire-rated separation is required between units.**
Q5: (Select-All-That-Apply) Which of the following are considered "Dwelling Units" requiring
smoke alarm protection under the IRC? Select all that apply.
A. [CORRECT] A detached garage with a habitable second story.
B. [CORRECT] A single-family home.
C. [CORRECT] A townhouse.
D. A detached storage shed.
Correct Answers: A, B, C
Rationale: The IRC requires protection in dwelling units. A detached garage with a habitable
space is a dwelling unit. A shed is not.**
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