Ch 30 Fire Protection Systems ( Part 2) Flashcards
The National Fire Alarm Code is NFPA?
72
What are the 4 signals a fire alarm system sends and receives?
- Alarm
a) Local - to occupants
b) Remotely transmitted - to Fire Dept - Trouble
- Supervisory
- Annunciation
FACP?
FACU?
Fire Alarm Control Panel
Fire Alarm Control Unit
What is a hardware component used to determine if there is a fire?
Alarm-initiation device
Heat, smoke, and rate of rise detectors are examples of _________ __________ detectors?
Spot type
A device in which detection is continuous along a path (a cable) is a ____________ detector?
Linear
What are the 2 types of pull stations?
Single action - one step ( just pulling down)
Double action - 2 steps (lifting a cover or breaking glass and pulling down. Prevents false alarms)
NFPA 72 refers to manual pull stations as?
Manual fire alarm boxes
3 types of heat detectors?
- Fixed temperature
- Rate of rise
- Rate compensation
What is the most common form of heat detector?
Sprinkler head
What is the most familiar smoke detector?
Single station smoke alarm device
NFPA 72 has 3 requirements for residential device locations?
- 1 on each level
- 1 on each bedroom
- 1 in the corridor outside each sleeping area
2 basic types of smoke detectors?
- Ionization - electrodes
2. Photoelectric - light
If 2 detection devices must activate before initiating a fire alarm, it’s called?
Cross zoned alarm system
The 2 types of alarm notification appliances are?
Audible - bells, horns, sirens, speakers
Visible - strobes
What are the 5 basic types of fire alarm systems?
“CLAPR”
- Central station
- Local
- Auxiliary municipal
- Proprietary supervisory
- Remote supervisory station
The most common automatic suppression system is?
Automatic sprinkler systems
A ______________ system has no release mechanism. This type of head is always open?
Deluge
With an “Upright Sprinkler Head” the deflector is __________?
With a “Pendant Sprinkler Head” the deflector is _________ ?
Up
Down
What are the 5 types of sprinkler systems?
“WET DDRP”
- Wet pipe
- Dry pipe
- Deluge
- Residential
- Preaction
What is the most common and simplest sprinkler system?
Wet pipe
What are dry sprinkler systems filled with instead of water?
Air or nitrogen
In a dry system, the ___________ pressure is higher?
Water
A preaction uses elements of a ____________ and __________ system?
Deluge
Dry pipe
For a preaction, 2 methods of detection, typically a _________ _______ and a _____________ __________ must activate for water to flow, which minimizes water damage?
Smoke detector
Sprinkler head
Residential systems main objectives are to prevent __________ in rooms of origin, improve chances for occupant ___________ and prevent ___________ ________ to adjacent rooms?
Flashover
Escape
Fire spread
In the US, sprinkler systems fail about ____% of the time, usually because the main water control valve has been left _____ accidentally?
5%
Shut
The 2 most common types of indicator valves are?
- PIV
2. OS&Y
If the stem is exposed of an OS&Y it’s in the ________ position?
Open
What are the uses of a Class I, II, and III standpipe?
Class I - FD (standard, 2.5” male outlet)
Class II - Occupant (low flow, low pressure, 1.5” per connected hose)
Class III - Both FD and Occupant (both connections)
