Fire Safety Chapter 26 Flashcards
20 Questions
100 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of an outside stem and yoke valve?

  • Drain the sprinkler system
  • Control the water supply to the individual system branches
  • Prevent backflow from the system to the water supply
  • Control the water supply to the sprinkler system (correct)
  • What is a major concern with battery-powered smoke alarms?

  • Occupants ignoring their activation
  • Occupant removal
  • Battery replacement (correct)
  • False alarm
  • Which sprinkler system valve uses a threaded shaft to indicate the position of the valve?

  • Inspector's test
  • Outside stem and yoke (correct)
  • Post indicator
  • Wall post indicator
  • Which type of alarm notification system sends a signal to a third-party, off-site monitoring facility?

    <p>Central station</p> Signup and view all the answers

    What is a concern when a gaseous suppression system is activated?

    <p>Oxygen-deficient atmosphere</p> Signup and view all the answers

    Which type of alarm notification system alerts only building occupants?

    <p>Protected premises</p> Signup and view all the answers

    What is the name of the standardized audio pattern that must be produced by a modern audible fire alarm?

    <p>Temporal-3</p> Signup and view all the answers

    Which kind of sprinkler system uses accelerators?

    <p>Dry-pipe</p> Signup and view all the answers

    Which type of automatic sprinkler system flows water from all the sprinkler heads within a protected area?

    <p>Deluge</p> Signup and view all the answers

    What do older heat detectors lack that makes it difficult to track down the cause of an alarm?

    <p>Indicator light</p> Signup and view all the answers

    How prone are heat detectors to false alarms as compared to smoke detectors?

    <p>Less</p> Signup and view all the answers

    Where is a main sprinkler system valve usually installed?

    <p>On the main riser, above the water supply control valve</p> Signup and view all the answers

    Sprinkler heads are classified by their:

    <p>Release temperature</p> Signup and view all the answers

    Which type of heat detector must be replaced after activation?

    <p>Fixed temperature</p> Signup and view all the answers

    In a preaction system, one function of the main valve is to act as a:

    <p>Dam</p> Signup and view all the answers

    What is the primary advantage of a preaction sprinkler system?

    <p>Prevention of accidental water discharges</p> Signup and view all the answers

    The percentage of blocked light in a beam detector represents the __________ rate.

    <p>Obscuration</p> Signup and view all the answers

    What does activation of a water-motor gong indicate?

    <p>Water flowing in the system</p> Signup and view all the answers

    Which is one of the two types of fire detection technologies used in smoke detectors?

    <p>Ionization</p> Signup and view all the answers

    Which type of smoke detector is activated by visible products of combustion?

    <p>Photoelectric</p> Signup and view all the answers

    Study Notes

    Sprinkler System Valves

    • Outside stem and yoke valves control the water supply to the sprinkler system.
    • Main sprinkler system valves are typically located on the riser above the water supply control valve.

    Smoke Alarms

    • Battery-powered smoke alarms have a significant concern related to battery replacement.
    • Heat detectors are less prone to false alarms compared to smoke detectors.

    Types of Alarm Notification Systems

    • Central station systems send signals to a third-party monitoring facility.
    • Protected premises systems alert only the occupants within the building.

    Fire Detection Technologies

    • Two common types of fire detection technologies used in smoke detectors are ionization and photoelectric.
    • Photoelectric smoke detectors activate in response to visible products of combustion.

    Automatic Sprinkler Systems

    • Deluge systems release water from all sprinkler heads within the protected area.
    • Dry-pipe systems utilize accelerators to initiate water flow.
    • Preaction sprinkler systems prevent accidental water discharges and have the main valve acting as a dam.

    Audio Patterns and Indicators

    • The standardized audio pattern for modern fire alarms is Temporal-3.
    • Older heat detectors lack indicator lights, making it challenging to track alarm causes.

    Fire Alarm Functionalities

    • Activation of a water-motor gong indicates water flow within the system.
    • Fixed temperature heat detectors must be replaced after activation.

    Detection Principles

    • The percentage of blocked light in a beam detector indicates the obscuration rate.

    Sprinkler Head Classification

    • Sprinkler heads are categorized based on their release temperature, affecting operational efficacy in fire control.

    Overall System Considerations

    • Addressing concerns such as occupant removal and false alarms is critical in fire safety systems, ensuring effective response during emergencies.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on fire safety concepts with these flashcards covering Chapter 26. This quiz focuses on key aspects such as valve functions and smoke alarm concerns. Perfect for anyone studying fire safety regulations and best practices.

    Use Quizgecko on...
    Browser
    Browser