Programmable Logic Controller (PLC) Technician Certification Exam, Exams of C programming

Programmable Logic Controller (PLC) Technician Certification Exam

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2025/2026

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NFPA Certified Fire Protection Specialist
practice with Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
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1. Which NFPA standard primarily addresses fire alarm systems?
A. NFPA 13
B. NFPA 72
C. NFPA 101
D. NFPA 25
B
NFPA 72 is the National Fire Alarm and Signaling Code, which sets
standards for fire alarm systems.
2. The main purpose of a sprinkler system is to:
A. Suppress fires in early stages
B. Evacuate occupants
C. Alert the fire department only
D. Provide smoke ventilation
A
Sprinkler systems are designed to suppress or control fires before
they spread.
3. What type of fire extinguisher should be used on a Class B fire?
A. Water
B. CO2
C. Wet chemical
D. Foam
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NFPA Certified Fire Protection Specialist

practice with Correct Answers (Verified

Answers) Plus Rationales 2026 Q&A |

Instant Download Pdf

  1. Which NFPA standard primarily addresses fire alarm systems? A. NFPA 13 B. NFPA 72 C. NFPA 101 D. NFPA 25 B NFPA 72 is the National Fire Alarm and Signaling Code, which sets standards for fire alarm systems.
  2. The main purpose of a sprinkler system is to: A. Suppress fires in early stages B. Evacuate occupants C. Alert the fire department only D. Provide smoke ventilation A Sprinkler systems are designed to suppress or control fires before they spread.
  3. What type of fire extinguisher should be used on a Class B fire? A. Water B. CO C. Wet chemical D. Foam

B

CO2 extinguishers remove oxygen and are suitable for flammable liquid (Class B) fires.

  1. The fire-resistance rating of a wall indicates: A. How flammable the wall is B. How long it resists fire C. The wall thickness D. The type of wall finish B Fire-resistance ratings specify the duration a wall can withstand fire exposure.
  2. NFPA 13 covers which type of system? A. Fire alarm B. Sprinkler C. Standpipe D. Smoke control B NFPA 13 is the standard for installation of sprinkler systems.
  3. Which device detects smoke particles? A. Heat detector B. Ionization smoke detector C. Waterflow switch D. Pull station B Ionization smoke detectors detect small smoke particles generated by fast-flaming fires.
  4. A wet-pipe sprinkler system contains: A. Air in pipes B. Water in pipes

NFPA 25 covers maintenance of water-based fire protection systems.

  1. A dry-pipe sprinkler system is used primarily in: A. Heated warehouses B. Areas subject to freezing C. Kitchens D. Offices B Dry-pipe systems keep pipes filled with air to prevent freezing in cold environments.
  2. Which type of standpipe system provides water only from fire department connections? A. Class I B. Class II C. Class III D. Automatic wet A Class I standpipes are designed for trained personnel or firefighters and rely on fire department water supply.
  3. In NFPA 101, the maximum travel distance to an exit in a business occupancy is: A. 100 ft B. 200 ft C. 300 ft D. 400 ft B Business occupancies have a maximum egress travel distance of 200 feet per NFPA 101.
  1. Fire-resistance ratings are determined through: A. Field testing B. Laboratory testing C. Material specifications only D. Insurance requirements B Ratings are based on standardized fire tests in laboratories.
  2. What type of fire alarm initiating device is activated manually? A. Heat detector B. Smoke detector C. Pull station D. Waterflow switch C Manual pull stations are activated by building occupants to initiate alarms.
  3. Which type of sprinkler head is activated by heat? A. Dry chemical B. Fusible link C. Carbon dioxide D. Water mist B Fusible link sprinkler heads activate when the link melts at a specified temperature.
  4. A Class K fire involves: A. Paper B. Flammable liquids C. Cooking oils D. Electrical equipment
  1. Which class of fire involves energized electrical equipment? A. Class A B. Class B C. Class C D. Class K C Class C fires involve electrical equipment.
  2. Smoke detectors are typically installed: A. Near exits only B. On ceilings or high walls C. In closets D. On floors only B Smoke rises, so detectors are installed high for early detection.
  3. Which NFPA standard covers emergency and standby power systems? A. NFPA 70 B. NFPA 110 C. NFPA 13 D. NFPA 25 B NFPA 110 governs emergency and standby power systems.
  4. A deluge sprinkler system is primarily used in: A. Kitchens B. Areas with high hazard C. Offices D. Residential buildings B

Deluge systems deliver water simultaneously through all heads in high-hazard areas.

  1. What type of fire alarm notification appliance produces a loud sound? A. Strobe B. Horn C. Detector D. Pull station B Horns are audible devices to alert occupants.
  2. Which NFPA standard regulates electrical safety in buildings? A. NFPA 101 B. NFPA 70 C. NFPA 25 D. NFPA 13 B NFPA 70 is the National Electrical Code.
  3. The purpose of fire-resistive construction is to: A. Slow fire spread B. Prevent fire detection C. Reduce sprinklers D. Increase water use A Fire-resistive construction limits the spread of fire and protects structural elements.
  4. Which type of detection system is most sensitive to slow- smoldering fires? A. Ionization smoke detector
  1. The most common type of sprinkler head in commercial buildings is: A. Upright B. Pendant C. Sidewall D. Deluge B Pendant sprinklers hang from ceilings and are common in commercial settings.
  2. What is the minimum spacing between sprinklers in a standard light hazard occupancy? A. 6 ft B. 12 ft C. 15 ft D. 20 ft C NFPA 13 specifies 15 ft maximum spacing for light hazard areas.
  3. Which NFPA standard covers portable fire extinguishers? A. NFPA 10 B. NFPA 13 C. NFPA 25 D. NFPA 72 A NFPA 10 is the Standard for Portable Fire Extinguishers.
  4. The main purpose of a pre-action system is to: A. Reduce water damage B. Increase water flow C. Alert occupants D. Provide additional heat detection

A

Pre-action systems reduce accidental water discharge and damage.

  1. Which type of sprinkler system discharges water immediately upon activation of the head? A. Wet-pipe B. Dry-pipe C. Pre-action D. Deluge A Wet-pipe systems have water in the pipes at all times.
  2. What is the primary hazard addressed by NFPA 58? A. Electrical fires B. Liquefied petroleum gas C. Cooking oils D. Flammable liquids B NFPA 58 covers LP-gas systems and hazards.
  3. Which fire alarm device is used to indicate the presence of smoke to occupants visually? A. Horn B. Strobe C. Pull station D. Heat detector B Strobes provide visual notification for occupants, especially for hearing-impaired.
  4. What is the minimum number of exits required for a room with 50 occupants?

Wet chemical extinguishers saponify cooking oils to suppress Class K fires.

  1. The activation temperature of a standard sprinkler head is typically: A. 100°F B. 155°F C. 212°F D. 400°F B Standard sprinkler heads operate around 155°F (68°C).
  2. Which NFPA standard addresses water-based foam fire suppression systems? A. NFPA 13 B. NFPA 11 C. NFPA 72 D. NFPA 25 B NFPA 11 covers low-, medium-, and high-expansion foam systems.
  3. The term “fire load” refers to: A. The number of sprinklers B. The potential energy of combustible materials C. The fire pump capacity D. Smoke control system rating B Fire load measures the potential heat release in a space due to combustibles.
  4. Which type of sprinkler head sprays water in a specific pattern for extended coverage? A. Upright

B. Sidewall C. Pendant D. Deluge B Sidewall sprinklers are designed to protect walls or small rooms.

  1. What is the purpose of a check valve in a fire protection system? A. Increase pressure B. Prevent backflow C. Detect water flow D. Suppress fire B Check valves prevent reverse flow, protecting the water supply.
  2. Which class of fire extinguisher is used for ordinary combustibles? A. Class A B. Class B C. Class C D. Class K A Class A extinguishers are for wood, paper, and similar materials.
  3. What is the minimum water supply duration for ordinary hazard sprinkler systems? A. 30 minutes B. 60 minutes C. 90 minutes D. 120 minutes B
  1. In NFPA 13, light hazard occupancies include: A. Warehouses with flammable liquids B. Offices and schools C. High-rise apartments D. Industrial facilities B Light hazard areas include offices, schools, and similar low-risk spaces.
  2. What is the minimum diameter for a standpipe riser? A. 2 inches B. 4 inches C. 6 inches D. 8 inches B NFPA 14 requires a minimum 4-inch diameter for standpipe risers.
  3. Which fire suppression system is designed for computer server rooms? A. Wet-pipe B. CO2 or clean agent system C. Foam system D. Kitchen hood suppression B Clean agent systems protect sensitive equipment without causing water damage.
  4. Which NFPA standard specifies requirements for the maintenance of portable fire extinguishers? A. NFPA 10 B. NFPA 25 C. NFPA 72

D. NFPA 13

A

NFPA 10 includes maintenance, inspection, and testing requirements for portable extinguishers.

  1. What type of sprinkler system is used in areas subject to freezing? A. Wet-pipe B. Dry-pipe C. Pre-action D. Deluge B Dry-pipe systems keep water out of the pipes to prevent freezing.
  2. Which device signals sprinkler activation to a fire alarm panel? A. Pull station B. Waterflow switch C. Smoke detector D. Heat detector B Waterflow switches detect water movement and notify the fire alarm system.
  3. Which NFPA standard provides guidance for the installation of electrical systems? A. NFPA 70 B. NFPA 101 C. NFPA 13 D. NFPA 25 A
  1. Which component is used to prevent backflow in a fire sprinkler system? A. Deluge valve B. Check valve C. Pressure switch D. Flow switch B Check valves prevent reverse water flow into the supply line.
  2. The “fire triangle” consists of: A. Heat, oxygen, smoke B. Heat, fuel, oxygen C. Fuel, oxygen, sprinkler D. Heat, fuel, water B Combustion requires heat, fuel, and oxygen.
  3. Which NFPA standard governs emergency and standby power systems for fire protection? A. NFPA 70 B. NFPA 110 C. NFPA 25 D. NFPA 72 B NFPA 110 ensures reliable emergency power for critical fire protection equipment.
  4. What is the maximum spacing for sprinklers in ordinary hazard, light hazard areas? A. 10 ft B. 12 ft C. 15 ft

D. 20 ft C NFPA 13 specifies 15 feet maximum spacing in light hazard occupancies.

  1. Which type of fire alarm system uses a central control panel to monitor multiple devices? A. Single-station B. Proprietary C. Central station D. Remote annunciator C Central station systems transmit alarms to a monitoring facility.
  2. Which fire class involves combustible metals? A. Class D B. Class K C. Class B D. Class C A Class D fires involve combustible metals such as magnesium or sodium.
  3. Which NFPA standard governs the installation of clean agent suppression systems? A. NFPA 2001 B. NFPA 13 C. NFPA 25 D. NFPA 72 A NFPA 2001 addresses clean agent fire suppression systems.