Electrical Level 4 Module 5 "Fire Alarm Systems"

Which organization establishes standards for equipment?

NEMA

NFPA 101 is also known as the

Life Safety Code

Which fire alarm system is the simplest of all systems?

Conventional hardwired

Which kind of detector can sense along its entire length?

A line detector

What part of a fire alarm system coordinates the actions that the system must take in response to its other components?

The FACP

Many fire alarm systems provide graphical control through an

Alphanumeric Keypad

An alarm delay can be up to

Three minutes

The ADA specifies that fire alarm strobe lights must be clear or

White

At minimum hearing distance, an audible alarm should be no louder than

120dBA

Digital communicators connect to telephone lines with an

RJ31-X

Which electrical code specifies wiring methods and cables for fire alarm systems?

Article 760

Which of the following is an unacceptable means of mounting a detector on gypsum drywall?

Plastic masonry anchors

Which of the following fires will an IR detector NOT be able to sense?

Alcohol

Duct smoke detectors are governed by

UL 268A

What is the first step in troubleshooting fire alarm equipment?

Know the equipment.

The specific requirements for wiring and wiring equipment installation for fire protective signaling systems are covered in

NFPA 72

A code that was established to help fire authorities continually develop safeguards against fire hazards is

NFPA 1

A defined area within the boundaries of a fire alarm system is known as a

Zone

An SLC that consists of a class A main trunk with a class B spur circuit is known as an SLC

hybrid circuit

An automatic detector that draws air from the protected area back to the detector is called an

Air sampling detector

A heat detector that is NOT a fixed-temperature device is a

Rate-of-rise detector

Older type duct detectors used the

Light obscuration principle

The type of pull station that is restricted for use in special applications is the

Key-operated type

Primary power circuits supplying fire alarm systems must be protected by circuit breakers not larger than

20A

Fire warning system units for residential use must be listed in accordance with UL standard

985

Addressable systems commonly use a verification method called

Positive alarm sequence

The NFPA 72 specified Temporal-Three sound pattern for a fire alarm signal is

Three short (1/2 second), a pause, then a repeat

Public area audible notification devices must have a minimum dBA rating of

75 at 10' (3 m)

The use of an attendant signal requires the approval of the

AHJ

Commercial fire alarm cables that run from floor to floor must be rated at least as

Riser cable

Power-limited fire alarm circuit conductors must be separated from nonpower-limited fire alarm circuit conductors by at least

2" (50 mm)

For smoke chamber definition purposes, an archway that extends down 18" (450 mm) or more from the ceiling is considered the same as a

Barrier

The primary function of a commercial duct smoke detector is to

Shut down an associated HVAC system

In a supervised automatic sprinkler system, a visual or audible supervisory signal must be

Different from an alarm signal