Sprinkler Systems 4Th Year

Front 1

Sprinkler systems can be defined as? 3

Back 1

Sprinkler systems, residential sprinklers and automatic sprinklers

Front 2

Define automatic sprinkler

Back 2

Discharges water over specific area when heat actuated element is heated to above a preset temperature

Front 3

Define residential sprinklers

Back 3

Sprinklers specifically listed in residential occupancies

Front 4

What are the three different styles of automatic sprinkler systems?

Back 4

Dry, wet, preaction

Front 5

Define dry system

Back 5

Piping normally contains air under pressure

Front 6

Define pre-action system

Back 6

Piping normally dry, fire alarm sends a signal to solenoid valve which lets water into system

Front 7

It is a device that opens automatically and directs water on to fire called a sprinkler or a head?

Back 7

Sprinkler

Front 8

NFPA stands for?

Back 8

National fire protection Association

Front 9

After how many stories kind of building not be residential anymore?

Back 9

Five or more stories

Front 10

What are the temperature ratings for residential sprinklers?

Back 10

135 F to 170 F ordinary

175 F to 225 F intermediate

Front 11

What are three predominant styles of sprinklers?

Back 11

Pendant, sidewall, upright

Front 12

What is most important aspect of sprinkler system?

Back 12

Location

Front 13

Maximum square footage coverage of sprinkler

Back 13

144 ft.²

Front 14

Maximum distance to wall for sprinkler

Back 14

6 feet

Front 15

Maximum distance between sprinklers

Back 15

8 feet or 12 ft?

Front 16

Maximum distance from the ceiling to sprinkler deflector if not positioned

Back 16

4 to 6 inches

Front 17

All pipe and fittings used for residential sprinkler systems must be able to withstand pressure and temperature of what?

Back 17

175 PSI and 120°F

Front 18

What types of copper can you use for residential sprinkler systems?

Back 18

KL and M

Front 19

Copper joints for what systems Shall be?

Back 19

Brazed or 95/5

Front 20

Why can't 50-50 solder be used on sprinkler systems

Back 20

Will blow apart

Front 21

What types of plastic pipe are acceptable for sprinkler systems?

3

Back 21

Schedule 80 C PVC threaded or socket type, schedule 40 C PVC socket type and pex

Front 22

When are you allowed to use half-inch to supply sprinkler?

Back 22

If it is pex and it has three separate paths

Front 23

What gallons per minute is one sprinkler design for

Back 23

18 gallons per minute

Front 24

What's gallons per minute is two sprinklers designed for?

Back 24

26 gallons per minute

Front 25

What are four approved sources of water for a sprinkler system?

Back 25

1. Water service

2. Elevated tank

3. Pressure tank

4. Stored water with pump

Front 26

What are the four elements of a sprinkler piping arrangement?

Back 26

Main control valve, pressure gauge, waterflow alarm, drain.

Front 27

What is required if building exceeds 2000 ft.² or is more than one story?

Back 27

At least one fire department connection, connection should be at least one and a half inches

Front 28

What is the minimum size of a drain pipe on the sprinkler system?

Back 28

1 inch

Front 29

What is maximum temperature of water permitted to sprinkler system?

Back 29

120°F or 49°C

Front 30

Sprinkler systems need test gauges for what?

Back 30

Supply pressure, system pressure, if there is backflow preventer or two gauges are required

Front 31

What are four stages of fire?

Back 31

Incipient stage, smoke stage, flame stage, high heat stage

Front 32

Air normally contains what percentage of oxygen?

Back 32

21%

Front 33

At what percentage of oxygen does thinking and coordination become difficult?

Back 33

Below 17%

Front 34

What percentage of oxygen is breathing becomes impossible?

Back 34

6%

Front 35

What are three different types of fire detectors?

Back 35

Smoke detectors, thermal or heat detectors, flame detectors

Front 36

Which is more expensive smoke detectors or heat detectors?

Back 36

Smoke detectors

Front 37

What are two basic types of smoke detectors?

Back 37

Ionization and photo electric

Front 38

What are two types of water flow alarms? And how do they operate?

Back 38

1. Water alarm alarm signal devices have a title or Dane that moves to signal flow of water

2. Pressure operated electric switches sense the change in pressure to indicate water flow

Front 39

How long before should hydrostatic test be prepared?

Back 39

24 hours

Front 40

What is hydrostatic test?

Back 40

Water test pressurized with all air out of system

Front 41

What are the test pressure requirements of a hydrostatic test?

Back 41

200 psi or 50 psi more than working pressure

Front 42

Siamese connection is require what kind of connectors?

Back 42

Threaded

Front 43

Siamese connections are fastened using what size connections?

Back 43

2 1/2 inches

Front 44

Is drip valve installed upstream or downstream of Siamese connection?

Back 44

Downstream

Front 45

Water storage reservoir us must be capable of holding how many minutes of water supply?

Back 45

30 minutes

Front 46

Most common valves used for fire protection systems?

Back 46

OS and Y

Front 47

Stamp pipes that contain glycol require what?

Back 47

Backflow protection device

Front 48

Firehose cabinet that has two valves installed is classified as?

Back 48

Class III

Front 49

Ball drips are installed between?

Back 49

Check valve and Siamese

Front 50

Standpipe systems are used for what class of fire?

Back 50

Class A

Front 51

Class 3 hose cabinets have?

Back 51

2 1/2" connections with an adapter for one 2 1/2" connection and one 1 1/2" connection

Front 52

Class one standpipe system will be used by?

Back 52

Trained site personnel or fire department

Front 53

Type B fires are caused by?

Back 53

Flammable liquids

Front 54

Class 2 cabinets have one valve and are intended for use by?

Back 54

Building occupants

Front 55

What is class a fire

Back 55

Ordinary combustible's Like wood and pipe

Front 56

What is class a fire

Back 56

Ordinary combustible's Like wood and pipe

Front 57

What is class B fire?

Back 57

Liquids, oils, gasoline

Front 58

What is class C fire?

Back 58

Electrical

Front 59

What is a class D fire?

Back 59

Flammable metals

Front 60

What is class K fire?

Back 60

Kitchen, kitchen fire

Front 61

The device that opens automatically and directs water onto the fire is called?

Back 61

A sprinkler

Front 62

What is a dry system?

Back 62

Normally contains air so no standing water

Front 63

How is initial operation of a pre-action system controlled?

Back 63

Sprinkler pipe is dry, solenoid valve directs water into sprinkler line when automatic detection device senses fire

Front 64

What is AFC an abbreviation for?

Back 64

Alberta Fire Code

Front 65

What are 3 possible remedies for the installation of residential fire sprinklers exposed to freezing.

Back 65

Glycol, antifreeze, dry system

Front 66

What types of sprinkler must you inform owner not to paint over or conceal?

Back 66

Concealed sprinklers and pendant type sprinklers with special finishes

Front 67

What types of sprinkler must you inform owner not to paint over or conceal?

Back 67

Concealed sprinklers and pendant type sprinklers with special finishes

Front 68

What types of sprinklers would be best suited for a daycare? 2

Back 68

Pendant with guard or concealed

Front 69

If an elevated tank is utilized on a residential fire sprinkler system, what is the min water supply duration?

Back 69

30 min

Front 70

The main control elements of a sprinkler piping arrangement include which of the following? 4

Back 70

Main control valve, pressure gauge, water flow alarm, drain

Front 71

Sprinkler systems over 100 psi, what must be installed?

Back 71

A prv

Front 72

In relation to fire code, nfpa 13 R, R represents

Back 72

Residential