Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

TFD BC > Fire Detection, Protection, and Suppression Systems > Flashcards

Fire Detection, Protection, and Suppression Systems Flashcards

1
Q

What NFPA and building codes do we use?

A

IFC chapter 903
IBC chapter 903
NFPA 13
NFPA 72

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Fire sprinkler systems are effective in controlling fires ___% of the time

A

96%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Fire protection systems have fairly standardized design requirements across ____ ___

A

North America

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Local fire prevention and building codes may require…

A

Different types of systems for different buildings

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a fire detection system?

A

A system that recognizes when a fire is occurring and activates the fire alarm system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A fire detection system does what 3 things? What is it’s secondary purpose?

A 
Alerts occupants (primary purpose)
May alert the fire dept
May automatically activate fire suppression systems

Secondary purpose is to conserve property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Fire alarm/detection systems can be very simple or complex. These systems generally have the same…

A

Basic components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the most common type of residential fire alarm system?

A

Single station smoke alarm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A single station smoke alarm includes both a…

A

Smoke detection device and and audible alarm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

____ (#) of single station smoke detectors are installed in private dwellings and apartments

A

Millions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the 2 ways a smoke alarm can be powered?

A

Battery

Hard wired to 110 volt electrical system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Up to date codes require new homes to have a smoke alarm…

A

In every bedroom and on every floor level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Many home fire alarm systems are part of ____ ____

A

Security systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the 2 types of smoke detectors?

A

Ionization

Photoelectric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Ionization detectors are triggered by the ____ products of combustion

A

Invisible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Photoelectric detectors are triggered by the ____ products of combustion

A

Visible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are the 3 basic components in a fire alarm system?

A

Alarm initiation device
Alarm notification device
Control Panel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the “brain” of a fire alarm system?

A

The control panel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What does the control panel do?

A

Manages and monitors the proper operation of the system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A control panel may/can indicate…

A

The source of the alarm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A control panel also manages the primary ___ ___ and provides…

A

Power supply

Backup power supply for the system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Control panels vary greatly depending on ___ and ____

A

Age of system

Manufacturer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The FACP is also used to ____ the alarm and ___ the system

A

Silence

Reset

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Many buildings have an additional display panel. What is it called?

A

A remote annunciator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Where is a good place to look for a remote annunciator?

A

Near the main entry way or lobby

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

A battery in the FACP will automatically activate when…

A

The external power is interrupted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What are alarm initiating devices?

A

Components that activate a fire alarm system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What are the 2 types of alarm initiating devices?

A

Manual

Automatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is the primary manual initiation device?

A

Manual fire alarm box/manual pull station

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Manual initiation devices will stay in the activated position until…

A

It’s reset

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What are double action pull stations?

A

Designed to prevent malicious false alarms. They are covered with a piece of clear plastic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Automatic initiating devices can use several types of detectors. What are some examples?

A 
Smoke
Invisible products of combustion
Heat
Light from an open flame
Specific gases
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What is the most common type of smoke detector?

A

Ionization?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Heat detectors can provide ____ protection, but cannot provide reliable ____ ____ protection

A

Property

Life safety

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

When are heat detectors generally used?

A

In situations where smoke detectors cannot be used

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Heat detectors are generally installed in ______ areas

A

Unheated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

True or false…

Heat detectors are not as reliable as smoke detectors

A

FALSE

They are very reliable and less prone to false alarms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

How do fixed temperature heat detectors work?

A

Usually a metal alloy that will melt at a preset temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

When will rate of rise detectors activate?

A

When the temperature of the surrounding air rises more than a set amount in a given period of time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Most rate of rise detectors are self _____

A

Restoring

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Choose one…

Generally rate of rise detectors will respond FASTER or SLOWER than fixed temp heat detectors.

A

Faster

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

How to line heat detectors work?

A

They use wires or a sealed tube to sense heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

What are the 2 types of wire type line heat detectors?

A

One has 2 wires separated by an insulating material

Another type measures changes in electrical resistance in a single wire as it heats up

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

What is the tube type line heat detector?

A

It has a sealed metal tube filled with air or a nonflammable gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

How do flame detectors work?

A

They detect the electromagnetic light waves produced by a flame

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Where are flame detectors typically found?

A

Where early detection and rapid reaction to a fire is critical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

What is the power point example of something that can accidentally trigger a flame detector?

A

Arc welding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Flame detectors are complicated and ____

A

Expensive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Gas detectors are calibrated to….

A

Detect the presence of a specific gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Gas detectors need regular _____

A

Calibration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Gas detectors are usually found only in…

A

Specific commercial or industrial applications

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

What are the 6 gases listed that a gas detector may detect?

A 
CO
CO2
Hydrogen chloride
Hydrogen cyanide
Hydrogen fluoride
Hydrogen sulfide
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

What do air sampling detectors do?

A

Continuously capture air samples and measure concentrations of specific gases or products of combustion

54
Q

What is a water flow alarm?

A

Ensures that someone is aware water is flowing from a sprinkler head or when standpipe valve is opened

55
Q

What are the 2 things that a fire alarm system does?

A

Alerts building occupants

Alerts fire dept

56
Q

What are the 3 types of false alarms?

A

Malicious
Unwanted
Nuisance

57
Q

What is a malicious alarm?

A

Caused by someone who deliberately activates the alarm when there is no fire

58
Q

What is an unwanted alarm?

A

When an alarm is activated by a condition that is not really an emergency

59
Q

What is a nuisance alarm?

A

Alarm caused by improper functioning of an alarm sysem or one of it’s components

60
Q

What is an alarm notification appliance?

A

Produces an audible signal when fire alarm is activated

61
Q

Many new alarm notification appliances incorporate…

A

Visual notification devices

62
Q

Fire alarms may also control what 3 other things?

A

Air handling systems
Fire doors
Elevators

63
Q

Almost all fire alarm systems are now ____ to some extent

A

Zoned

64
Q

In a coded system, zone is IDd not only at the FACP, but also through an ____ ____ ____

A

Audio notification device

65
Q

Fire alarm systems can be broken down into what 4 categories?

A

Non coded alarm
Zoned non coded alarm
Zoned coded alarm
Master coded alarm

66
Q

What is a non coded alarm system?

A

Where the control panel has no info indicating where the fire alarm was activated
It typically sounds a bell or a horn
Fire dept must search entire building to find which initiation device was activated

67
Q

What is a zoned non coded alarm system?

A

Where the alarm control panel indicates in which zone the activated device is located

68
Q

What is the most common type of alarm system?

A

Zoned non coded alarm system

69
Q

With a zoned non coded alarm system, the building it divided into….

A

Multiple zones, often by floor or wing

70
Q

What is a zoned coded alarm system?

A

All the same things of a non coded alarm system but it also indicates which zone has been activated over the announcement system

71
Q

What type of alarm system do hospitals have?

A

Zoned coded alarm system

72
Q

What is a master coded alarm sytem?

A

When the same audible notification device is used for other purposes throughout the building

73
Q

What 4 classifications can fire alarms be broken down into based on how the fire dept is notified?

A

Local alarm system
Remote station system
Proprietary or Auxiliary system
Central station

74
Q

What is a local alarm system?

A

A system that does not alert the fire dept. It only alerts the occupants to the building

75
Q

What is a remote station system?

A

A system that sends a signal directly to the fire dept or to another monitoring location via a telephone line or a radio signal

76
Q

What is an auxiliary system?

A

When a building’s fire alarm system is tied into a master alarm box located outside

77
Q

What is a proprietary system?

A

When a building’s alarm is connected directly to monitoring site owned and operated by the building owner

78
Q

What is central station system?

A

When a system notifies a third party off site from the building and the personnel at the central station are the ones who notify the appropriate fire dept

79
Q

What 3 things might a fire suppression system include?

A

Automatic sprinkler system
Standpipe system
Specialized extinguishing systems

80
Q

Why is it important to understand how fire suppression systems work?

A

Because they can affect fire behavior

81
Q

What is a major advantage of a sprinkler system?

A

It can function as both a fire detection system and a fire suppression system

82
Q

What are 6 reasons why a sprinkler system might fail?

A 
Closed valves
Inadequate water supply
Blocked heads
Fire load changes
Partial protection
Poor Maintenance
83
Q

What is the definition of a sprinkler system?

A

A system of pipes, valves, water, and heads, which operate automatically to control or extinguish fire, initiate an alarm, and save lives/property

84
Q

What are the 4 major components of an automatic sprinkler system?

A

Automatic sprinkler heads
Piping
Control valves
Water supply

85
Q

Sprinkler heads are composed of what 4 things?

A

Body
Release mechanism
Orifice
Deflector

86
Q

What is a fusible link sprinkler head?

A

Uses a metal alloy such as solder that melts at a specific temperature

87
Q

What is a frangible bulb sprinkler head?

A

A head that uses a glass bulb that is filled with glycerin or alcohol to hold the cap in place

As the bulb is heated, liquid absorbs the air bubble and expands until it breaks the glass which releases the cap

88
Q

What is a chemical pellet sprinkler head?

A

Uses a plunger mechanism and a small chemical pellet that will liquefy at a specific temperature

89
Q

With sprinklers, what does ESFR mean?

A

Early Suppression Fast Response

90
Q

Why are deluge heads easily identifiable?

A

They have no cap or release mechanism

91
Q

Deluge systems are designed to protect…

A

Extra hazardous occupancies

92
Q

What is the typical rating for a sprinkler head in a light hazard occupancy?

A

165 degrees

93
Q

Where is the rating found on a sprinkler head?

A

Stamped on the body

94
Q

The sprinkler head temp rating must match…

A

The anticipated ambient air temperatures

95
Q

Uncolored or black sprinkler heads have an operating temp of ___ to ___ degrees F

A

135 to 170

96
Q

Sprinkler piping is usually made of _____

A

Steel

Sometimes plastic is used in residential systems

97
Q

Sprinkler piping includes what 4 things?

A

Main water supply lines
Risers
Feeder lines
Branch lines

98
Q

What are the 3 types of valves used on a sprinkler system?

A

Main water supply control valve
Alarm valve
Other smaller valves used for testing and service

99
Q

Where are the 3 places that a water supply for a sprinkler system can come from?

A

Municipal water system
On site storage tanks
Static water sources

100
Q

What is the preferred water source of a sprinkler system?

A

A municipal water system

101
Q

What can be added to fire sprinkler systems to prevent false alarms due to water surges?

A

Retard Chambers

102
Q

When are fire pumps used in a sprinkler system?

A

When the water comes from a static source or to boost pressure for tall buildings

103
Q

What does FDC stand for?

A

Fire Department Connection

104
Q

What is the FDC for?

A

Allows the fire dept’s engine to pump water into the sprinkler system

105
Q

What is a water flow alarm?

A

A water powered gong to signal that the sprinkler system has been activated

106
Q

What are the 5 categories of automatic sprinkler systems?

A 
Wet 
Dry
Pre action
Deluge
Residential
107
Q

What is the most common type of sprinkler system?

A

Wet sprinkler system

It is also the least expensive

108
Q

Wet sprinkler system means that the piping is always…

A

Filled with water

109
Q

What is the major drawback of a wet sprinkler system?

A

it cannot be used in areas where the temperature drops below freezing

110
Q

What is a dry sprinkler system?

A

Same as a wet sprinkler system except that the pipes are filled with pressurized air instead of water

111
Q

What keeps the water from entering the pipes in a dry sprinkler system?

A

A dry pipe valve

112
Q

What is a preaction sprinkler system?

A

Same as a dry sprinkler system except the key difference is that a secondary device must be activated before water is released into the sprinkler piping

113
Q

What is a deluge sprinkler system?

A

Water flows from all of the sprinkler heads as soon as the system is activated
All of the heads are always open

114
Q

Who can order the shut down of a sprinkler system?

A

The IC only

115
Q

In most cases, the system can be shutdown by…

A

Closing the main control valve

116
Q

What can stop the flow from a sprinkler head quickly?

A

A wooden wedge or commercial sprinkler stop

117
Q

What are 3 characteristics of residential sprinkler systems vs other sprinkler systems?

A

Smaller piping
Smaller heads with smaller orifices
Less water discharge

118
Q

What is a standpipe system?

A

A network of pipes and outlets for fire hoses built into a structure to provide water for firefighting purposes

119
Q

What is a class I standpipe?

A

Designed for fire dept personnel only

Has a 2 1/2 male coupling and a valve to open the water supply

120
Q

What is a class II standpipe?

A

Outlet with a length of 1 1/2” hose preconnected to the system
Intended for the occupants to attack the fire before the fire dept arrives
Safety and effectiveness is questionable

121
Q

What is a class III standpipe?

A

Has the features of both the class I and class II standpipe

122
Q

Water flow in the standpipe systems depends on what 2 things?

A

Water supply and the condition of the piping

123
Q

What 2 things are often installed on standpipes to limit pressure and flow?

A

Flow restriction devices

Pressure reducing valves

124
Q

We standpipe systems in modern buildings are connected to a public water supply with an ___ or ____ fire pump to provide additional pressure

A

Electric or diesel

125
Q

When are specialized extinguishing systems used?

A

When water would not be an acceptable extinguishing agent

126
Q

How are dry chemical extinguishing systems kept?

A

In self pressurized tanks or in tanks with an external cartridge of CO2 or N2 that provides pressure when the system is activated

127
Q

What kind of extinguishing system is now used in most new commercial kitchens?

A

Wet chemical systems

128
Q

What are the 2 initiation devices for wet chemical extinguishing systems?

A

Fusible links above the target hazard

Manual discharge pull station

129
Q

Where are clean agent extinguishing systems often installed?

A

Areas where computers or sensitive equipment are used

130
Q

Clean agents are non ____ and leave no _____

A

Non conductive

Residue

131
Q

What are the 2 clean agents that are generally used?

A

Halogenated

CO2

132
Q

Clean agent extinguishing systems are tied into building’s fire alarm system and should alert firefighters that…

A

They are responding to a situation where a clean agent has been discharged

TFD BC (26 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions