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Norman > chapter 6 > Flashcards

chapter 6 Flashcards

1
Q

What pressure should the pumper discharge the water under
when using a separate water supply to reinforce the
sprinkler system?

A

150 psi

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2
Q

How many multiple death fires have been recorded in a

building with a fully operational wet sprinkler system?

A

0

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3
Q

How many psi of pump pressure should be added for each

additional 10 stories above the 50th floor?

A

50 psi

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4
Q

When should members consider taking the elevator to the

attack location?

A

Fire on the 8th floor

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5
Q

What will happen when water in the amount of one sprinkler

head flows in the dry-pipe system?

A

Clapper will lock

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6
Q

What should be done by the attack crew to orient
themselves before moving to the smoky fire floor in a
high-rise apartment building?

A

Find the same room number on the floor below the fire

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7
Q

Which of the following control the flow of the water?

A

Post indicator valve

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8
Q 
Which class of standpipe system delivers only 100 gpm and
should not be depended upon for large fire knockdown?
A

Class II

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9
Q

Which size pipe wrench should be included in the standpipe

kit?

A

14-inch

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10
Q

What is the height of building where standpipes are

required?

A

75 feet

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11
Q

What is the most common type of sprinkler system control

valve?

A

OS&Y

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12
Q

Which of the following is a correct statement about a good
starting discharge pressure for the standpipe system
operations when using a straight nozzle?

A

100 psi plus 5 psi for every story above grade

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13
Q

Which of the following situations should you call for
assistance upon arrival when there is a sprinkler system
in place?

A

Heavy fire showing from the windows

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14
Q

What is the maximum pressure at the top-floor outlets when

a booster pump is in place?

A

65 psi

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15
Q

What size holes were drilled in the pipes in the first

attempts to create a nonautomatic sprinkler system?

A

1/8 inch

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16
Q

How long do gravity tanks generally provide protection

before running out of water?

A

30 to 90 minutes

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17
Q

What feature is seen as a water conservation feature as
well as a property saving feature in the pre-action
system?

A

System is able to shut off and on the system

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18
Q

How many lengths of 50-foot hoseline would be needed due
to current regulations on the location of standpipes in a
sprinklered building?

A

5

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19
Q

Which direction is the valve on the wall indicator valve

moved to close it?

A

Clockwise

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20
Q

What is a common problem with partial sprinkler systems?

A

It is only connected to the domestic water

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21
Q

What is a good amount of time for a sprinkler technician
to allow the water to flow before an alarm sounds to help
avoid false alarms?

A

1 minute

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22
Q

What is the most common type of sprinkler system?

A

Automatic wet

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23
Q

What can be used to move the smoke from a sprinklered

building that is large with a limited number of openings?

A

Use the HVAC system

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24
Q

Which of the following items is NOT a trade-off that is

allowed when a building will be sprinklered?

A

Decrease the distance to the exits

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25
Q

How much air pressure is used to hold back the top part of

the clapper in a differential dry-pipe valve?

A

35 psi

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26
Q

What is an uncommon occurrence at a location with a

sprinkler system in place that causes firefighters grief?

A

They go off once the firefighters are on scene

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27
Q

What are sprinkler contractors allowed to tap into when
installing a sprinkler system in an older high-rise
building?

A

Standpipe

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28
Q

How is the Siamese connection checked for water flow?

A

Feel for vibrations

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29
Q

What is the estimated space that each sprinkler head is

able to cover at 20 gpm?

A

100 square feet

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30
Q

What is a good rule of thumb in terms of pumpers and

Siamese connections?

A

One pumper for each Siamese

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31
Q

How many gpm would each normal sprinkler head flowing at

50 psi deliver?

A

40

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32
Q

Which location often has the manual dry standpipe system

in place?

A

Parking garage

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33
Q

What is used as a check valve in the automatic wet

sprinkler system?

A

Alarm valve

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34
Q

Which of the following areas is commonly protected by a

deluge system?

A

Truck loading rack

35
Q

Which type of standpipe system would be the best choice

when there is the risk of freezing in the area?

A

Semiautomatic dry

36
Q

Where does the attack usually begin when using the

standpipe?

A

Staircase nearest the fire

37
Q

How far into the threads should the firefighter probe
before connecting to a standpipe outlet to ensure there
are no obstructions?

A

3 inches

38
Q

What should be the pump pressure for a fog nozzle when

used on the 15th floor?

A

250 psi

39
Q

Which system is used over expensive electronic equipment

to protect the items in the case of a water leak?

A

Pre-action

40
Q

What size team should be posted at the controls of the

sprinkler system?

A

2-person

41
Q

Which of the following is a good reason to use the solid

tip nozzle when using the standpipe system?

A

Allows rust to pass that can build up in the system

42
Q

How many feet of raise adds 4.34 psi to the water?

A

How many feet of raise adds 4.34 psi to the water?

43
Q

How many square feet per floor as a minimum requires a

standpipe system be installed?

A

20,000

44
Q

How often should the pressure-reducing valve be flow

tested as a minimum?

A

3 years

45
Q

Where should spare hose be flaked out when there is a
serious fire in a fire-resistant building to keep it from
being burned?

A

Floor below the fire

46
Q

Which of the following is an indication that there is a

sprinkler system in the building?

A

Presence of a Siamese connection

47
Q

Which type of reducer needs to be bypassed for fire

department use?

A

Pressure-reducing valve

48
Q

How long can the piping in the New York Telephone
Switching Center’s sprinkler system able to withstand
1,500 degrees Fahrenheit?

A

15 minutes

49
Q

What size is the main drain valve?

A

2-inch

50
Q

What should be done by the attack crew to orient
themselves before moving to the smoky fire floor in a
high-rise apartment building?

A

Find the same room number on the floor below the fire

51
Q

Which of the following is an inherent problem with the dry

standpipe system?

A

Piping may not be able to withstand the working pressure

52
Q

What would keep you from mistakenly thinking a building
has a standpipe system due to the apparent requirements
being met?

A

Visit each building and observe the system

53
Q

Which of the following control the flow of the water?

A

Post indicator valve

54
Q

Who can reset the dry-pipe system once the alarm has

sounded?

A

Sprinkler contractor

55
Q

Which type of reducer works via a plate creating friction
loss to reduce the flowing pressure on the downstream
side?

A

Orifice plate between the reducer and the outlet

56
Q

What is the primary distinction between different classes

of standpipes?

A

Intended users

57
Q

Which of the following is a legitimate reason to shut off

the automatic sprinkler system?

A

Conserve water for manual firefighting efforts

58
Q

What is an absolute must in sprinklered buildings but is

also hard to accomplish?

A

Ventilation

59
Q

Which standard regulates the standpipe systems?

A

NFPA 14

60
Q

Which system is used over expensive electronic equipment

to protect the items in the case of a water leak?

A

Pre-action

61
Q

What should be done before putting water into the
sprinkler system when there are members inside of the
structure?

A

Have them move to a safe location

62
Q

How many feet of raise adds 4.34 psi to the water?

A

10 feet

63
Q

Where is the standpipe outlet valve generally located?

A

Head height

64
Q

Which class of standpipe system is for firefighter usage?

A

Class I

65
Q 
Which class of standpipe has a 2 1/2-inch and 1 1/2-inch
outlets?
A

Class III

66
Q

What is the best size hoseline to include in the standpipe

kit?

A

2 1/2-inch

67
Q

What is the maximum nozzle pressure that will most likely
be available to work with in the upper floors of a
high-rise building?

A

50 psi

68
Q

What does the OS&Y valve look like when the valve is open?

A

Stem is sticking up

69
Q

How long have sprinkler systems been in use around the

world?

A

100 years

70
Q

What is the maximum pressure that is allowed in the Class

III standpipe system’s 1 1/2-inch connection after 1993?

A

100 psi

71
Q

Which of the following is a reason that fires in

sprinklered buildings seem more smoky?

A

Spray pattern pushes the smoke down to the floor

72
Q

What senses the fire in a deluge system?

A

Fire detection system

73
Q

Which of the following is NOT considered a strategy for

fighting fires in a sprinklered building?

A

Locate the system shutoffs when you arrive on scene

74
Q

What are sprinkler heads marked as to?

A

Temperature

75
Q

How many 2 1/2-inch lines should be used to supply the
sprinkler system?
p. 103

A

2

76
Q

What is the minimum team size allowed by OSHA standards

for work within a standpiped building?

A

4

77
Q

If you must force entry into a building due to receipt of
a water flow alarm, where is the best place to do it in
terms of building security when you leave?

A

Roof

78
Q

Which type of sprinkler system is found in unheated areas

where freezing is a problem?

A

Dry-pipe

79
Q

Which is the preferred type of standpipe system?

A

Automatic wet system

80
Q

How many 2 1/2-inch lines should be used to supply the

sprinkler system?

A

2

81
Q

Which class of standpipe system is for firefighter usage?

A

Class I

82
Q

What is used as a check valve in the automatic wet

sprinkler system?

A

Alarm valve

83
Q

Which type of sprinkler system does not have any water

supply attached to it?

A

Nonautomatic

Norman (8 decks)

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