CO Fire Alarm Contractor Exam
Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2027 Q&A| Instant
Download Pdf.
1. Which standard is the primary governing document for the
installation, inspection, testing, and maintenance of fire alarm and
signaling systems in most commercial applications?
A. NFPA 13
B. NFPA 70
C. NFPA 72
D. NFPA 101
Rationale: NFPA 72, the National Fire Alarm and Signaling Code,
establishes requirements for fire alarm and signaling systems, including
installation, performance, inspection, testing, maintenance, and
documentation.
2. What is the principal purpose of a fire alarm control unit (FACU) in a
fire alarm system?
A. To provide emergency lighting throughout the building
B. To supply water to the sprinkler system
,C. To receive, process, supervise, and control fire alarm system signals
D. To provide electrical power to all building equipment
Rationale: The FACU is the central processing and control component
that receives initiating-device signals, supervises system conditions,
activates notification appliances, and interfaces with other systems as
required.
3. A manual fire alarm box is commonly referred to as which type of
initiating device?
A. Supervisory initiating device
B. Notification appliance
C. Manual initiating device
D. Power-limited circuit
Rationale: A manual fire alarm box is an initiating device operated by a
person to manually transmit a fire alarm signal to the fire alarm control
unit.
4. Which device is specifically designed to detect smoke particles
suspended in the air?
A. Heat detector
B. Waterflow switch
C. Smoke detector
D. Pressure switch
,Rationale: Smoke detectors sense airborne combustion products and are
designed to initiate an alarm or supervisory function when smoke
reaches the detector's sensing chamber.
5. What is the primary difference between an alarm signal and a
supervisory signal?
A. Alarm signals are always audible while supervisory signals are always
visual
B. An alarm signal indicates a fire or emergency condition, while a
supervisory signal indicates an off-normal condition of a monitored fire
protection system
C. Supervisory signals can only originate from smoke detectors
D. Alarm signals are generated only by manual stations
Rationale: Alarm signals indicate conditions requiring immediate
emergency response, whereas supervisory signals generally indicate
that a fire protection system or related condition is outside its normal
required status.
6. A sprinkler system waterflow switch is normally used to initiate
which type of signal?
A. Trouble
B. Alarm
C. Supervisory
D. Tamper
, Rationale: A properly adjusted waterflow switch detects sustained
movement of water through a sprinkler system and normally initiates a
fire alarm signal.
7. What type of signal is typically generated when a supervised fire
alarm circuit develops an open circuit?
A. Alarm
B. Supervisory
C. Trouble
D. Evacuation
Rationale: An open circuit on a supervised fire alarm circuit generally
causes the control unit to indicate a trouble condition because the circuit
is no longer in its required normal state.
8. What is the purpose of end-of-line supervision on a conventional
fire alarm initiating circuit?
A. To increase notification appliance volume
B. To reduce battery charging time
C. To allow the control unit to supervise the circuit for certain wiring
faults
D. To convert AC power into DC power
Rationale: The end-of-line device establishes the expected electrical
condition at the end of a supervised circuit so that wiring faults such as
opens can be detected.
Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2027 Q&A| Instant
Download Pdf.
1. Which standard is the primary governing document for the
installation, inspection, testing, and maintenance of fire alarm and
signaling systems in most commercial applications?
A. NFPA 13
B. NFPA 70
C. NFPA 72
D. NFPA 101
Rationale: NFPA 72, the National Fire Alarm and Signaling Code,
establishes requirements for fire alarm and signaling systems, including
installation, performance, inspection, testing, maintenance, and
documentation.
2. What is the principal purpose of a fire alarm control unit (FACU) in a
fire alarm system?
A. To provide emergency lighting throughout the building
B. To supply water to the sprinkler system
,C. To receive, process, supervise, and control fire alarm system signals
D. To provide electrical power to all building equipment
Rationale: The FACU is the central processing and control component
that receives initiating-device signals, supervises system conditions,
activates notification appliances, and interfaces with other systems as
required.
3. A manual fire alarm box is commonly referred to as which type of
initiating device?
A. Supervisory initiating device
B. Notification appliance
C. Manual initiating device
D. Power-limited circuit
Rationale: A manual fire alarm box is an initiating device operated by a
person to manually transmit a fire alarm signal to the fire alarm control
unit.
4. Which device is specifically designed to detect smoke particles
suspended in the air?
A. Heat detector
B. Waterflow switch
C. Smoke detector
D. Pressure switch
,Rationale: Smoke detectors sense airborne combustion products and are
designed to initiate an alarm or supervisory function when smoke
reaches the detector's sensing chamber.
5. What is the primary difference between an alarm signal and a
supervisory signal?
A. Alarm signals are always audible while supervisory signals are always
visual
B. An alarm signal indicates a fire or emergency condition, while a
supervisory signal indicates an off-normal condition of a monitored fire
protection system
C. Supervisory signals can only originate from smoke detectors
D. Alarm signals are generated only by manual stations
Rationale: Alarm signals indicate conditions requiring immediate
emergency response, whereas supervisory signals generally indicate
that a fire protection system or related condition is outside its normal
required status.
6. A sprinkler system waterflow switch is normally used to initiate
which type of signal?
A. Trouble
B. Alarm
C. Supervisory
D. Tamper
, Rationale: A properly adjusted waterflow switch detects sustained
movement of water through a sprinkler system and normally initiates a
fire alarm signal.
7. What type of signal is typically generated when a supervised fire
alarm circuit develops an open circuit?
A. Alarm
B. Supervisory
C. Trouble
D. Evacuation
Rationale: An open circuit on a supervised fire alarm circuit generally
causes the control unit to indicate a trouble condition because the circuit
is no longer in its required normal state.
8. What is the purpose of end-of-line supervision on a conventional
fire alarm initiating circuit?
A. To increase notification appliance volume
B. To reduce battery charging time
C. To allow the control unit to supervise the circuit for certain wiring
faults
D. To convert AC power into DC power
Rationale: The end-of-line device establishes the expected electrical
condition at the end of a supervised circuit so that wiring faults such as
opens can be detected.
