Deck 9: Fire Alarm Systems and National Electrical Code Article 760

Question 1

Heat detectors are considered to be life-safety devices.

Answer 1

False

Question 2

Indicator devices are considered output devices from the point of view of the control unit.

Answer 2

True

Question 3

The fire alarm annunciator panel, monitors all input sensors and initiating devices.

Answer 3

False

Question 4

Spacing of smoke detectors on flat surfaces can be a distance of up to _________.

A) 10ft.
B) 30ft.
C) 50ft.
D) 100ft.

Question 5

Duct detectors are installed ____________.

A) As a substitute for area smoke detectors
B) Next to fresh air returns
C) In all residential locations
D) As a means of shutting down airflow when smoke is detected

Question 6

End of line devices are required by addressable fire alarm systems.

Question 7

Single conductor sizes for a power-limited fire alarm circuit cannot be smaller than ____________.

A) 16 AWG
B) 18 AWG
C) 22 AWG
D) 26 AWG

Question 8

Carbon monoxide detectors are required in all _________.

A) Installations
B) Industrial installations
C) Commercial Installations
D) Residential Installation

Question 9

Heat detectors are a suitable substitute for smoke detectors.

Question 10

Emergency telephone must be part of the main telephone system.

Question 11

Survivability requires a minimum rating of _________ to ensure the functional use of the system during a fire.

A) 1 hour
B) 1.5 hours
C) 2 hours
D) 4 hours

Question 12

Audible alarm indicators, for commercial spaces, must output a minimum level of _____dB at 10ft. and be _______dB greater than the ambient noise level.

A) 60dB, 6dB
B) 60dB, 15dB
C) 75dB, 15dB
D) 85dB, 15dB

Question 13

How can the number of devices on an analog addressable circuit and the overall distance requirements from the control panel to the farthest device in the loop be determined ?

A) It is determined by the manufacturer
B) By using end of line devices
C) By calculating the high-speed data requirements
D) By calculating the total current in the loop

Question 14

Life safety is the primary goal of a fire alarm system.

Question 15

Fire alarm systems, classified for residential use, cannot be used in commercial space s.

Question 16

Class A circuits are four wire circuits that do not use end of line devices.

Question 17

Fire alarm circuits must be clearly labeled at every junction and terminal connection.

Question 18

What is not a common output indicator for a control panel?

A) Normal
B) Alarm
C) Standby
D) Trouble

Question 19

The power source for a nonpower-limited fire alarm system cannot output voltages greater than ________

A) 150V
B) 300V
C) 600V
D) 1000V

Question 20

To ensure survivability, the type of cable required is _________.

A) MI or CI cable
B) Plenum cable
C) Multipurpose cable
D) Class 1 rated cable

Question 21

A device that detects visible or invisible particles of combustion is a _______.

A) Heat alarm
B) Heat detector
C) Smoke detector
D) Thermistors

Question 22

What type of smoke detector is most sensitive to particles smaller than 1µm?

A) Air sampling detector
B) Projected beam detector
C) Photoelectric detector
D) Ionization detector

Question 23

Voltage ratings for power-limited fire alarm circuit conductors must be rated to __________.

A) 150V
B) 300V
C) 600V
D) 1000V

Question 24

What statement about central station fire alarm systems is true?

A) Are owned and operated by the property owner of the protected premise
B) The central station must be located in the same state as the protected premise
C) The central station must be listed and approved by a recognized testing agency and the AHJ
D) Central stations will only provide service to individual clients

Question 25

What type of detector technology is nonrestorable?

A) Thermopiles
B) Temperature sensitive resistors
C) Fusible links
D) Thermistors

Question 26

Maximum allowable ceiling temperatures are typically _________ less than the temperature rating of the heat detector.

A) 1 ^◦ F
B) 5 ^◦ F
C) 10 ^◦ F
D) 20 ^◦ F

Question 27

The power source for a power-limited fire alarm system cannot output voltages greater than ________

A) 150V
B) 300V
C) 600V
D) 1000V

Question 28

What type of heat detector responds to shifting temperatures that vary excessively beyond a predetermined value?

A) Rate-of-rise
B) Rate compensation
C) Fixed temperature
D) Spot detector

Question 29

What statement about line seizure is not true?

A) Achieved through an RJ-31X connector
B) The house phone will continue to operate
C) Cellular phone may be used as a backup
D) Gives the DACT priority access to the phone line

Question 30

The Class B system, for initiating devices, connects through a two-wire circuit and _________.

A) Does not use an end of line device
B) Uses an end of line device
C) Is an outdated system no longer used in the United States
D) Uses a series limiting resistor