Fire Alarm Systems Quiz

1. According to Chapter 10, "Fundamentals," trouble signals and their restoration to normal shall be indicated within _______ seconds at the locations identified in 10.14.7 and 10.14.8.

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According to Chapter 10, "Fundamentals," trouble signals and their restoration to normal shall be indicated within 200 seconds at the locations identified in 10.14.7 and 10.14.8.

Explanation

According to Chapter 10, "Fundamentals," trouble signals and their restoration to normal shall be indicated within 200 seconds at the locations identified in 10.14.7 and 10.14.8.

2. The occurrence of any single fault that disables communication between any low-power radio transmitter/transceiver and the receiver/transceiver system control unit shall cause a latching trouble signal within _______ seconds at the system control unit that individually identifies the affected device.

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23.16.4.2

Explanation

23.16.4.2

3. Where operational capability is required to be maintained or continued during the application of a fault, the operational capability required in 10.11.1 shall be restored within _______ seconds from the time the fault is introduced.

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12.2.3.4

Explanation

12.2.3.4

4. According to Chapter 23, "Protected Premises Fire Alarm Systems," specified fault conditions shall result in the annunciation of a trouble signal at the protected premises within _______ seconds as required in Section 12.6.

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23.4.2.1

Explanation

23.4.2.1

5. For a public emergency alarm reporting system, a pathway or communications trouble condition shall be detected and annunciated at both the communication center and the alarm processing equipment location within ________ seconds.

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27.5.3.6.1

Explanation

27.5.3.6.1

6. An open ground fault or short-circuit fault on the installation conductors of one alarm notification appliance circuit shall not affect the operation of any other alarm notification appliance circuit for more than _______ seconds.

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10.16.1

Explanation

10.16.1

7. A communications failure shall initiate a specific communications failure trouble message, which shall be transmitted from the auxiliary alarm system and shall be automatically indicated within ________ seconds at the communications center.

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27.6.3.2.3.14 (B) (2)

Explanation

27.6.3.2.3.14 (B) (2)

8. The maximum allowable time lapse from the occurrence of an adverse condition in any transmission channel of a two-way radio system until recording of the adverse condition is started shall not exceed _______ seconds for Type 4 and Type 5 systems.

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23.16.4.2

Explanation

23.16.4.2

9. Spare DACRs shall be provided in the supervising or subsidiary station. The spare DACRs shall be on line or able to be switched into the place of a failed unit within _______ seconds after detection of failure.

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The statement requires the presence of spare Digital Alarm Communication Receivers (DACRs) in supervising and subsidiary stations. These spare units should either be actively online or capable of swift activation. They must be able to take over the role of the primary DACR within 30 seconds after detecting a failure, ensuring the uninterrupted functioning of the alarm communication system.

Explanation

The statement requires the presence of spare Digital Alarm Communication Receivers (DACRs) in supervising and subsidiary stations. These spare units should either be actively online or capable of swift activation. They must be able to take over the role of the primary DACR within 30 seconds after detecting a failure, ensuring the uninterrupted functioning of the alarm communication system.

10. The secondary power supply shall have sufficient capacity to operate the system under quiescent load (system operating in a non-alarm condition) for a minimum of 24 hours and, at the end of that period, shall be capable of operating all alarm notification appliances used for evacuation or to direct aid to the location of an emergency for _______ minutes, unless otherwise permitted or required by 10.6.7.2.1.1 through 10.6.7.2.2:

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This question appears to refer to requirements for the secondary power supply in a fire alarm system, which typically needs to operate for a certain duration during a power failure. The expectation is that the secondary power supply, often a battery or generator, must support the system's basic operations for a minimum of 24 hours under quiescent load (when the system is not in alarm). Following this, the same secondary power supply must be capable of operating all alarm notification appliances (like sirens or strobes) used for evacuation or emergency response for an additional specified time. Based on these requirements, the number of minutes typically required for continued operation in alarm condition varies. The duration may be set at 5, 15, 30, or even 60 minutes, depending on specific standards like the National Fire Protection Association (NFPA) guidelines. However, the correct answer typically hinges on the context or the specific edition of the referenced standards, making accuracy crucial. Given your question's format, clarify which standard or document is referenced to ensure precision in the response.

Explanation

This question appears to refer to requirements for the secondary power supply in a fire alarm system, which typically needs to operate for a certain duration during a power failure. The expectation is that the secondary power supply, often a battery or generator, must support the system's basic operations for a minimum of 24 hours under quiescent load (when the system is not in alarm). Following this, the same secondary power supply must be capable of operating all alarm notification appliances (like sirens or strobes) used for evacuation or emergency response for an additional specified time. Based on these requirements, the number of minutes typically required for continued operation in alarm condition varies. The duration may be set at 5, 15, 30, or even 60 minutes, depending on specific standards like the National Fire Protection Association (NFPA) guidelines. However, the correct answer typically hinges on the context or the specific edition of the referenced standards, making accuracy crucial. Given your question's format, clarify which standard or document is referenced to ensure precision in the response.

11. To initiate the positive alarm sequence operation in a protected premises fire alarm system, the signal from an automatic fire detection device selected for positive alarm sequence operation shall be acknowledged at the fire alarm control unit by trained personnel within _________ seconds of annunciation.

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23.8.1.2.1.1(1)

Explanation

23.8.1.2.1.1(1)