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40 Cards in this Set
- Front
- Back
The Americans disabilities act became law in |
1992 |
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For the purposes of fire protection room contents are refer to as |
Fuels |
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Name the four elements that effect fire alarm system reliability |
Design,equipment ,instalation,and maintenance |
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An in building fire emergency voice/alarm communication system is usually found in a |
Hi rise building |
|
Computer rooms are sometimes protected by |
Gaseous suppression systems |
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The National fire protection association was founded in |
1896 |
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List 3 signals produced by an fire alarm system |
Alarm, supervisory, and trouble |
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Opens and grounds on a fire alarm circuit will result in a |
Trouble signal |
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An emergency communication system can be used to warn occupants of a |
Fire, terrorist attack, or tornado |
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Wiring between enclosures is NOT required to be monitored for integrity if the enclosure are less than |
20 ft apart, and wiring is installed in conduit |
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Signaling line currents monitor for integrity by |
Polling and interrogating |
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Which circuit class is considered as FAIL SAFE |
Class D |
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Secondary power supplies must supply power to protected - premises fire alarm systems for a minimum of |
24 hour of stand by followed by 5 minutes of alarm |
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Secondary power supplies must supply power to an in building fire emergency voice / alarm communications fire alarm system for a minimum of |
24 hours of stand by followed by 15 minutes of alarm |
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Upon detection of a trouble condition, fire alarm system controls must initiate a trouble signal within |
200 seconds |
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Ionization type smoke detectors use____ as a means of detecting smoke particles |
Americium 241 |
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Which type of smoke detector works best in large open areas |
Projected beam type |
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Wall mounted spot type heat detectors are installed so that the top of the detector is |
4 to 12" from the ceiling |
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nfpa 72 permits__ to be use as a guide for smoke detector spacing on smooth and level ceiling |
30 feet |
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Valve supervisory initiating devices must initiate a supervisor signal within __revolutions of the wheel or__ of the travel distance of the valve |
2 revolutions and 1/5 of travel |
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Pressure supervisory switches must indicate__from nominal pressure |
10 psi |
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Sound pressure level (spl) is always measured using ___scale |
A-weighted |
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The minimum required sound pressure level for public mode signaling is the greater of __above the average ambient or five dB above the maximum spl lasting a minute or more,,using the a weighted scale (dba) |
15 db |
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The minimum required sound pressure level for private mode signaling is above the average ambient or five dB above the maximum spl lasting a minute or more, using the a weighted scale ( dba ) |
10 dBA |
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A sleeping room with an ambient sound pressure level of 45 decibels A-weighted (dba ) must have at the pillow |
75 dBA |
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According to nfpa 72, the lenses of a visible notification appliances for non sleeping areas must be mounted__ above the finished floor. |
80 - 96" |
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Corridor visible notification appliances must be installed a maximum of from each end of the corridor |
15' |
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Tables ___provide limitations for power limited circuits |
12 and 12b |
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Power limited circuits may be wired using |
Chapter 3 wiring methods,non power limited wiring methods,and power limited wiring methods |
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The __is selected by the authority having jurisdiction (ahj) |
Designated elevator recall level |
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Electric fire pumps must be supervised for |
Loss of phase,phase reversal, pump running |
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Diesel fire pumps must be supervised for |
Controller off,controller or engine trouble,engine running |
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The ___is selected by the authority having jurisdiction (ahj) |
Designated elevator recall level |
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Which of the following is a fail safe circuit |
Class d |
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In building fire emergency voice/alarm communications system are required to have what secondary power supply capacity? |
24 hours standby plus 15 minutes of all connected load |
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Outgoing and return conductors of class a circuits ____be seperated by a distance of ____? |
Should/1' vertically and 4' horizontally |
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A minimum speech transmission index (sti) of _____ is considered as intelligible |
0.5 |
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Specifications are an oppurtunity for the designer to |
Add requirements for the site specific fire protection goal,add requirements for the type of equipment use,add requirements of the owner. |
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Which of the following is MOST likely to be found in fire alarm specifications? |
Type of equipment used |
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Which of the following is usually found on shop drawings |
Cable/conduit routing,device addresses,wire/conduit schedule |