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SDFD Chapter 11 Quiz Notes > Quiz Notes > Flashcards

Quiz Notes Flashcards

0
Q

How many outlets do residential hydrants have

A

Residential: (1) 2 1/2” (1) 4”

Commercial: (1) 2 1/2” (2) 4”

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1
Q

What type of water system supplies the city of San Diego

A

Combination system gravity fed grid loop system

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2
Q

Fire hydrants are spaced approximately how many feet apart

A

600 feet

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3
Q

The hydrant is positioned with what outlet facing the street

A

4”

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4
Q

Requirements for clearance around a hydrant

A

Lowest outlet minimum 18 inches above ground. No obstructions can be within 3 feet. No parking within 15 feet.

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5
Q

What type system only reports on premise

A

Local alarm

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6
Q

Central station, proprietary, and remote station alarm system are examples of what alarm system

A

Monitored alarm system

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7
Q

Types of manual alarm devices

A

Single and dual action

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8
Q

Automatic alarm systems

A

Heat, smoke and gas detectors

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9
Q

Ionization smoke detector

A

Positive and negative ions are measured on an electrically charged electrode. Smoke enters the chamber, the flow of ions to the electrode changes and the alarm is activated

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10
Q

What type of alarm uses a beam of light with a sensor to detect smoke particles

A

Photoelectric smoke detector

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11
Q

Class one standpipe

A

Required in buildings more than how many stories above or below ground. Three stories

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12
Q

Class one standpipes having minimum of how many FDC’s at street level

A

2

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13
Q

How much PSI is required at the most remote outlet

A

65 psi pre 1993

100 psi post 1993

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14
Q

What system that utalizes a provided 1 1/2” hose connection , 100 ft of hose and a 50 gpm nozzle for occupant use

A

Class 2

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15
Q

Class III standpipe systems are required to deliver how many PSI pre/post 1993 per NFPA 14

A

100 psi pre/ 175 psi post

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16
Q

Automatic dry systems

A

Filled with pressurized air. Connected to a water supply to flow water once hose valve is open

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17
Q

Semi automatic dry systems

A

Airfield may or may not be pressurized. Use of deluge valve

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18
Q

FDC checks

A

Gasket, swivel, thread, obstruction, Clapper

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19
Q

Four categories of water based fire protection systems

A

Wet, dry, pre-action, deluge

20
Q

Easiest and most common system

A

Wet pipe system

21
Q

How many GPM’s are discharged in a industrial manufacturing sprinkler

A

20-40 gpm

22
Q

Indicating valve

A

Os&y, post indicator valve piv, wall post indicator valve, indicating butterfly valve

23
Q

Most common type of non-indicating valve

A

Globe valve

24
Q

Two types of operating elements for fire sprinklers

A

Fusible link and frangible bulb

25
Q

3 million

A

Gallons per day

26
Q

Dry and wet barrels

A

Sd uses wet barrels

27
Q

Transmission and distribution

A

16-66” transmission lines looped to form grid, from supply to distribution.

8-16” distribution lines, smaller grid system

28
Q

White painted or unpainted hydrants

A

Low pressure/high volume utilized to maintain water pressure in the mains during repairs or large scale emergencies

29
Q

Monitored alarm systems can be categorized as the following

A

Central station, proprietary, remote station

30
Q

Sprinklers most water-based fire protection systems fall within one of four categories

A

Wet pipe
Dry pipe
Pre action
Deluge

31
Q

Atypical sprinkler use for industrial manufacturing occupancies discharges about

A

20-40 gpm

32
Q

Sprinkler activation will do less damage than the fire department ostream which provides approximately

A

250 gpm

33
Q

A sprinkler system is described as a combination of underground and overhead piping that is connected to an automatic water supply and is installed throughout the building

A

Yup

34
Q

Pre-action sprinkler systems are specialized for use in locations where accidental activation is undesired such as

A

In museums with the rare artworks, manuscripts, or books, and data centers, for protection of computer equipment from accidental water discharge

35
Q

There are two main subtypes of pre-action systems

A

Single interlock, and a double interlock

36
Q

Single interlock system

A

The system is he sensually converted from a Dry system into a wet system

37
Q

Double interlock system

A

The operation of double interlock systems is similar to deluge systems except that automatic sprinklers are used

38
Q

Deluge systems

A

Systems in which all sprinklers connected to the water piping system are open, in that the heat sensing operating element is removed. Used for special hazards where rapidfire is a concern

39
Q

Sprinkler temperature ratings

A

The exact operating temperature is regulated by adjusting the amount of liquid and the size of the bubble when the bulb is sealed

40
Q

Sprinkler system control valves

A

Control valves are used to shut off the water supply to a fire sprinkler system control valves should remain in the open position at all times with the exception of systems modification or maintenance

41
Q

Fire protection pump system

A

Most fire pumps are found in the lower floors of the building and are either diesel or electrically powered. Modern pumps start automatically when the pressure in the system drops to a predetermined level to supply

42
Q

Shutting down fire protection systems

A

As a general rule you should work from the activation and move backwards to the system towards the water supply source. Stop/plug the sprinkler head using sprinkler tongs, red wood plugs or door wedges

43
Q

Non-water-based fire protection systems

A

Halogenated agents
Halon replacement agents and systems
Co2 systems

44
Q

Chemical extinguishing systems

A

Dry chemical, wet chemical, foam

45
Q

What is a standpipe

A

Standpipe systems are fixed piping systems with associated equipment that transports water from a reliable water supply to designated areas of buildings warehouses can be deployed for firefighting

46
Q

Combined systems are simply class one or class III standpipe systems that also

A

Supply water to the sprinkler system

47
Q

Class three systems pressure regulating devices are required when

A

Outlet pressure exceeds 175 PSI

48
Q

In the event that the buildings you are supplying water to is over 20 stories in height

A

The triple jacket, high-pressure hose shall be used if available

SDFD Chapter 11 Quiz Notes (1 decks)

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