Which NFPA 72 chapter contains the requirements for initiating devices such as smoke and heat detectors?
Nfpa 72 Code Navigation
Question · Easy
Purpose of a fire alarm system
System Fundamentals
Flashcard
Which NFPA 72 chapter covers notification appliances and their performance requirements?
Exam Overview & Fire Alarm Fundamentals
1.1 Exam Facts, Certification & Open-Book Strategy
Study guide
Cheat sheet
Which type of smoke detector uses a small radioactive source to ionize air inside the sensing chamber?
Initiating Devices
Trades Exam Prep Podcast
Listen on Spotify
Podcast
Governing code for fire alarm systems
Which smoke detector technology generally responds faster to slow, smoldering fires producing large visible smoke particles?
Question · Medium
A rate-of-rise heat detector activates based on what condition?
Three signal states a fire alarm panel reports
What is the most common fixed-temperature rating for ordinary-temperature spot-type heat detectors per NFPA 72 Chapter 17?
1.2 Fire Alarm System Fundamentals
Which device is intended to be operated by a person to manually initiate a fire alarm signal?
Initiating device vs. notification appliance
Per NFPA 72 Chapter 17, manual fire alarm boxes shall be located within how many feet of each exit?
The maximum travel distance from any point in the area to the nearest manual fire alarm box shall not exceed which value per NFPA 72?
Addressable vs. conventional system
Manual fire alarm box operating handles shall be installed at what height above the finished floor?
Initiating & Notification Devices
2.1 Initiating Devices (NFPA 72 Chapter 17)
On a smooth flat ceiling, what is the typical maximum listed spacing between spot-type smoke detectors per NFPA 72 Chapter 17?
Ionization vs. photoelectric smoke detector
Spot-type smoke detectors shall be located no closer than what distance from an air supply diffuser?
A spot-type heat detector is listed for 50-foot spacing on a smooth ceiling. Before applying any required reductions for ceiling height or construction, what is its maximum center-to-center spacing?
Question · Hard
Fixed-temperature heat detector
Linear (line-type) heat detection most commonly relies on which sensing principle?
2.2 Notification Appliances (NFPA 72 Chapter 18)
A projected beam smoke detector is best suited for which application?
Rate-of-rise (ROR) heat detector
Duct smoke detectors are primarily used to do which of the following?
What signal type does NFPA 72 require for a sprinkler valve tamper switch?
System Operation
When to use a heat detector instead of a smoke detector
Per NFPA 72 Chapter 23, what does a Class B initiating device circuit allow?
Circuit Classification
Circuits, Pathways & Power
3.1 Circuits & Pathway Survivability
Per NFPA 72 Chapter 23, which pathway class is required to continue to operate during a single open fault?
Manual pull station purpose and mounting
Class X pathways, as defined in NFPA 72 Chapter 23, must operate during which fault conditions?
A Class A initiating device circuit physically differs from a Class B circuit in what way?
Waterflow switch vs. tamper (supervisory) switch
Audible public-mode notification appliances must produce sound pressure that is at least how many dBA above the average ambient sound level?
Notification Appliances
3.2 Control Units & Power Supplies
Audible private-mode notification appliances must produce sound pressure that is at least how many dBA above the average ambient sound level?
Duct smoke detector function
Loading more…