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FF Ops In HR Buildings > Chapter 4 > Flashcards

Chapter 4 Flashcards

1
Q

Mini new systems are considered combination systems. Combinations systems are comprised of what?

A

The sprinkler system and the stand pipe for the manual firefighting are supplied by the same standpiper riser

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2
Q

A standpipe is system is designed in what NFPA?

A

NFPA 14

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3
Q

The piping used to deliver the water into a standpipe system from its Supply is known as a?

A

Primary feeder

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4
Q

These Riser itself is a ______ feeder.

A

Secondary

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5
Q

The smaller piping that delivers the water to all of the actual standpipe Outlets or hose connections within the system.

A

Distributors

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6
Q

What class standpipe system is designed specifically for fire department use and has two and a half inch discharge Outlets?

A

Class 1 standpipe System

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7
Q

Class 1 standpipe systems are typically required for buildings of what height?

A

Three or more stories in height

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8
Q

A Class 1 standpipe system is required to deliver what rated flow and at what PSI?

A

500 gallons per minute at the top floor at an outlet pressure of 65 PSI residual for pre 1993 and 100 PSI residual for post-1993

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9
Q

What is a Class 2 standpipe

A

Designed for occupant use,
-Uses 1.5” discharge Outlets and sometimes has hose attached to the outlet
Only required to deliver 100 GPM

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10
Q

What is a class 3 standpipe?

A

A combination of class 1 and Class 2 systems and is designed for both fire department and occupant use

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11
Q

Define a class 4 standpipe system

A

Also known as a combined system, is simply a Class 1 or class 3 standpipe system that also supplies water to the sprinkler system

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12
Q

A dry standpipe system that has piping that is normally filled with pressurized air

A

Automatic dry standpipe system

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13
Q

A wet standpipe system, which has piping that is filled with water at all times and has an automatically available water supply capable of supplying the water demanded necessary for firefighting

A

Automatic wet standpipe system

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14
Q

Hey dry standpipe system that has piping that is normally filled with air that may or may not be pressurized

A

Semi-automatic dry standpipe system

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15
Q

A dry standpipe system that has piping that is normally filled with air, and these systems do not have a pre-connected water supply. A fire department connection must be used to manually Supply water for firefighting

A

Manual dry standpipe system

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16
Q

A dry standpipe system that has piping that has normally filled with water for the purpose of allowing leaks to be detected. A fire department connection must be used to manually Supply water for firefighting.

A

Manual wet standpipe system

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17
Q

Sometimes referred to as the fire department Siamese connection.

A

Fire department connection (FDC)

18
Q

What size connections are most common in FDC’s?

A

2.5 in

19
Q

What must be done before connecting supply lines to the fdc?

A

Clear the FDC of debris and trash

20
Q

Pressures and excess of 250 psi are required for buildings above____ stories

A

30 stories

21
Q

Pressures in excess of 300 PSI are required for buildings above____ stories.

A

40 stories

22
Q

NFPA 14 recommends that a maximum pressure within the system at any point should not exceed ____.

A

350 PSI

23
Q

In NFPA _____the pipe fittings and valves used for the standpipe systems are rated for pressures up to only _____ PSI.

A

14, 300psi

24
Q

What valves control the flow of water throughout the standpipe

A

Post indicator valves, outside stem and yoke valves, check valves, and sectional control valves

25
Q

What keeps water in the system from flowing backward and out into the piping up to the FTC

A

Check valve and piping from the FDC

26
Q

What are the height requirement for standpipes?

A

3 ft to 5 ft

27
Q

In the most recent edition of NFPA 14 the recommended location and placement of the standpipe connections is located where

A

On the half Landing in between floors

28
Q

What is the most common valve within the standpipe system

A

Globe valve

29
Q

When the static pressure at a hose connection exceeds _____, _____ is required

A

170psi
Pressure Regulating Device

30
Q

Where are pressure regulating devices typically located?

A

At the Zone floor control valves for combination Sprinklers and standpipe systems

At the standpipe hose valve Outlets

31
Q

What NFPA sets the standard for installation of standpipe and hose

A

NFPA 14

32
Q

Which NFPA sets the standard for the installation of sprinkler systems?

A

NFPA 13

33
Q

What are the three types of pressure regulating devices used in standpipe systems

A

Pressure restricting devices, pressure reducing valves, pressure control valves

34
Q

Pressure restricting devices are sometimes referred to as?

A

Pressure restricting valves

35
Q

_____ maybe inserted into Outlook connections to standpipe systems to reduce residual pressure on the downstream side.

A

Orifice plates

36
Q

This mechanical device has a hose thread on both ends and resembles other types of Fire Department appliances.

A

Mechanical PRD

37
Q

A device that works by limiting the valve from being fully opened.

A

Limiting PRD

38
Q

______ are the preferred devices for regulating excessive pressures or pressure control and pressure reducing valves.

A

Pressure reducing valves (PRV’s)

39
Q

Based on NFPA recommendations most fire codes have required pressure reducing valves for Outlets of systems or static pressure that could exceed____.

A

175psi

40
Q

What is considered to be the most reliable method of controlling pressure?

A

Pressure reducing valves PRV’s

41
Q

It can be defined as a ____ when there are internal components associated with its pressure regulation that cannot be removed

A

Valve

42
Q

It can be defined as a_____ when there are either external components, such as limiting devices, or internal components such as an orifice plate associated with this pressure regulation.

A

Device

FF Ops In HR Buildings (11 decks)

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