問題一覧
1
An advantage over class A over class B is
In class A circuits, if a circuit is open or there is a fault, the field devices continue to operate
2
Automatic fire detectors operate on one of the __ principles
4
3
Addressable system allows you to set an address on the field device these addresses are normally a ___ digit number
2
4
Which device is a signaling device in a home security?
Audible bell
5
When the fire officer has reason to question the functionality of a fire alarm system he/she can order a certain test to be performed what is the test?
Verification
6
What is the maximum install height from the centre of a pull station to the finished floor?
42"
7
A data communication line circuit type b supports __ conductor termination to facilitate electrical supervision
2
8
The type of detector that is most vulnerable to soldering fires is the?
Ionization detector
9
What device is used for signaling in a home security system?
Siren/strobe combination
10
A single stage fire alarm that has an occupant load more than ___ must transmit a signal to the fire department
300
11
Passive infrared detectors sense a change in what?
Heat
12
In a class b circuit, a field device is typically connected in ___ and the circuit ends in a ___
Parallel, Loop
13
The emergency power supply for a fire alarm system must be capable of supplying supervisory power for 24 hours after which it must provide full load power for the alarm system for ___, depending upon the type of building and occupancy classification
30 minutes to 1 hour
14
The disconnecting means supplying the fire alarm (FA) system is typically colored __ and is ___ in the "on" position
Red, lockable
15
In a ___ fire alarm system, an audible evacuation alarm signal is sounded immediately by all signal devices when an automatic fire detection or manual pull station is activated
Single stage
16
What type of detector is used to detect the earliest stages of a fire?
Smoke detector
17
The picture with the man is
D
18
The disadvantage of a class b circuit compared to a class A circuits, in the event of an open or fault in the circuit is that
Some field devices won't work
19
The code that states smoke alarms must be installed in residential units is the
NFPA 72 - National fire alarm and signaling code
20
Interconnected smoke alarms must be wired with
14 AWG
21
A smoke alarm must be provided with a battery as an alternative power source that is capable of maintaining a normal condition for
7 days followed by a four minute alarm condition
22
The __ is a long metal Reed that is pulled closed by magnetic force from a nearby magnet
magnetic Reed switch
23
Alarms system use what kind of wires
14 AWG
24
A smoke detector and a smoke alarm is the same type of device
Agree
25
Alarm systems operate at a nominal voltage of
6V to 12V
26
Alarm system conductors must be separated at least __ from insulated power circuit conductors operating at 300V
50mm
27
Conductors smaller than __ must not be used when wiring glass break detectors that require 4 conductors
22 AWG
28
An audible bell is considered a __ for security alarms
Notification signaling device
29
If a device that monitors the condition of a fire alarm device is tampered with the fire alarm panel will indicate a __ condition
Trouble
30
Hazardous locations require a __ fire alarm system
Single stage
31
A single stage fire detection system goes into the alarm condition
Immediately when manual pull stations are activated
32
What the minimum ampacity of a conductor that feeds a fire pump with the FLA of 55 amps
68.75 A
33
A photoelectric smoke detector is used to detect
Smoldering fires
34
An ionization smoke detector is used to detect
Flaming fires
35
Which fire alarm device is installed at a height of 42' to the centre of the device AFF
Manual Pull Stations
36
Identify the device that is used for door and window contacts
Magnetic (Reed) Contact Switch
37
Which fire alarm system wiring method does not use a EOLR
Class A
38
The conductors used to supply a fire pump must be __ of the sum of all of the FLC ratings
125%
39
What is connected to the last fire alarm device on a class B circuit
Resistor
40
Which fire alarm device is installed within 5 meters of the bedroom doors if located in corridors or hallways
Smoke alarms