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Chapa 1 pump ops > St Chpt 7 > Flashcards

St Chpt 7 Flashcards

1
Q

If the building or area that is on fire is equipped with an automatic fire suppression system the primary tactic is to ________.

A

Support the system and let it do its job

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2
Q

_________ is essential for any building that is protected by an automatic fire suppression system, with the possible exception of a building containing a range hood system as the only fire protection system

A

Pre incident planning

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3
Q

The primary purpose of these life safety systems is to allow _______

A

Additional escape time

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4
Q

When the system or part of the system is out of service, the system should be ________ as specified in NFPA 25

A

Tagged

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5
Q

The system that is most often encountered in the ________, which is very effective and the most reliable fire suppression system.

A

Wet pipe sprinkler system

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6
Q

A_____ is used in areas that might be subject to freezing temperatures.

A

Dry pipe sprinkler system

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7
Q

A______ is also filled with air that may or may not be under pressure.

A

Pre-action sprinkler system

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8
Q

In both systems if the capacity of the piping exceeds 500 gallons the system must be equipped with an _______.

A

Accelerator or exhauster

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9
Q

Can be used when a warning is Desired before the actual water discharge, such as in computer rooms.

A

Preaction systems

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10
Q

With this system there is no water in the sprinkler piping, and all sprinklers are open.

A

Deluge system

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11
Q

Protect areas with high challenge fire potential, such as flammable liquids, conveyors moving combustible commodities, and transformers.

A

Deluge systems

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12
Q

The most common operational error at properties protected by automatic sprinkler systems is _________.

A

Shutting down the system prematurely

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13
Q

If a decision must be made between using hose lines and properly supplying the sprinkler system, it is usually best to ______.

A

Supply the sprinkler system

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14
Q

Several types of main valves are used to open and close sprinkler systems. The two most common type are the________.

A

Outside stem and yoke valve and post indicator valve

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15
Q

The firefighter who is assigned to the main control valve may also be in a position to monitor the fire pump. In many cases the fire pumps are located near the main control valve. This is an important position that should not be relegated to a part time task, requiring the firefighter to walk a considerable distance between the riser and pumps.

A

A good rule of thumb is to separate the tasks if the pumps cannot be seen or heard by someone standing at the main control valve.

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16
Q

Most departments provide a pressure of ______ psi to the FDC.

A

150 psi

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17
Q

It is important to avoid surges when initially charging the hoses connected to the FDC, as , many sprinkler systems are designed and tested to a maximum _______.

A

175psi

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18
Q

Some large area, sprinkler protected buildings are equipped with automatic or manual roof vents and ________ that are designed to limit fire spread.

A

Draft curtains

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19
Q

When possible, property conservation tasks should be accomplished while _______ is in progress.

A

Extinguishment

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20
Q

Is not an automatic fire suppression system.

A

Standpipe system

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21
Q

In this system, piping is filled with pressurized air or nitrogen but is connected to a water supply that automatically admits water into the system when a discharge is opened.

A

Automatic dry

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22
Q

In this system, piping is filled with water, and water is provided when the discharge is opened. This is the most common standpipe.

A

Automatic wet

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23
Q

In this system a dry standpipe admits water into the system piping upon activation of a remote control device located at a hose section.

A

Semi automatic dry

24
Q

This system is filled with air and does not have a water supply; the system relies entirely on water provided via the FDC to supply hose lines.

A

Manual dry

25
Q

This system is filled with water connected to a water supply that maintains water in the system, but it is not capable of providing water for firefighting purposes unless it is supplied by a fire department pumper.

A

Manual wet

26
Q

This system supplies both sprinklers and standpipes

A

Combined system

27
Q

A standpipe system having piping containing water at all times

A

Wet standpipe system

28
Q

Older codes generally specify _____ at the standpipe outlet, whereas modern codes usually require _____

A

65 psi

100 psi

29
Q

In most operations, an allowance of _____ of friction loss is adequate for the standpipe system piping

A

10 to 15 psi

30
Q

The laws of hydraulics tell us that there is ______ for every 1ft of elevation.

A

0.434 psi

31
Q

In the 60 story high rise building each floor is 10 ft high, yielding a back pressure of _______ at the base of the building

A

256 psi

32
Q

In the book firefighting principles and practices, William E Clark presents a method of dealing with excess hose. Hose is _____ the stairway above the fire floor before firefighters enter the floor.

A

Laid up

33
Q

In many cases, only one stairway has standpipe outlets, making it____.

A

It the obvious choice as the fire operations stairway

34
Q

The proper use of in place suppression devices is yet another reason for ________.

A

Preincedent planning

35
Q

Is the number one defense against flammable liquid fires but is nearly useless on pressurized liquids or gases

A

Foam

36
Q

Increases the effectiveness of water and adheres well to exposed structures

A

Class A

37
Q

Is used in areas where preventing water damage is a prime objective or where the extinguishing agent is more effective than water or dry chemical.

A

Carbon dioxide

38
Q

Are dependent on agent containment for a period of time to be effective

A

Total flooding systems

39
Q

Carbon dioxide Extinguishes by depleting the oxygen supply, and a carbon dioxide system generally requires carbon dioxide concentrations ranging from ______.

A

34% to 75%

40
Q

Systems rely on smoke detection for activation

A

Fix clean agent systems

41
Q

Most _____ do not require suffocating quantities to extinguish the fire; a low concentration is usually sufficient.

A

Clean agents

42
Q

Are used in a number of different applications. One of the most common is in kitchen hoods in restaurants.

A

Dry Chemical systems

43
Q

A _____ can be activated either automatically or manually at a pull station.

A

Kitchen hood system

44
Q

Similar in design to dry chemical systems, are also found in kitchen hood applications.

A

Wet chemical agent systems

45
Q

React with hot grease or oil to form a foam blanket that suppresses the release of combustible vapors

A

Wet chemical agents

46
Q

Carbon dioxide systems and many clean agent systems have _____ interlocked to the system, allowing occupants time to escape

A

Pre action alarms

47
Q

Property owners often prefer _______ because cleaning up after the system discharges is much easier than with dry chemical agents

A

Wet agent systems

48
Q

In _______ it is common for dry chemical systems also to protect the ductwork leading from the cooking appliances to where it exhausts outside of the building

A

Kitchen hood systems

49
Q

are also equipped with manually operated override valves that can be used of detection devices fail to operate

A

Deluge systems

50
Q

One method of checking for water flow, of the riser is not equipped with a device such as a water motor gong, is to ______ and listen for water flowing through the pipe

A

Place an ear against the riser

51
Q

If there are signs of a fire and or the sprinkler is operating, the main objective is to ______ while ensuring occupants are safe

A

Support the system

52
Q

Fire and building codes require _____ on standpipes

A

Female connections

53
Q

It is better to shut down a sprinkler system _____ than too early

A

Too late

54
Q

When changing from a variable stream to a smooth bore nozzle, it is important to recognize that there may be a significant increase in flow with a resultant increase in

A

Nozzle reaction

55
Q

Most fire departments have standing orders requiring connections to the standpipe ______ below the fire.

A

One floor

Chapa 1 pump ops (38 decks)

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