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WorksheetsNFPA 13: Finding the section and answer
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
When supporting a run of 6 inch sprinkler main entirely with expansion shields in the vertical position, their maximum spacing apart is:
a)
5 feet
b)
8 feet
c)
10 feet
d)
12 feet
2.
Sprinklers under glass or plastic skylights exposed to the direct rays of the sun shall be of the _________ temperature classification.
a)
intermediate
b)
ordinary
c)
high
d)
extra high
3.
The frame of an upright sprinkler head should be installed______.
a)
parallel to the attached piping
b)
perpendicular to the attached piping
c)
with the pitch of the roof
d)
pointing in the direction to the shut off valve
4.
Hydrostatic testing per NFPA-13 requires that the hydrostatic testing be performed with the clapper off its seat if the valve is:
a)
an alarm valve
b)
a pre-action valve
c)
a differential type dry-pipe valve
d)
a latch clapper type dry-pipe valve
5.
A new dry pipe system shall be tested for 24 hours with
a)
40 psi air
b)
50 PSI air
c)
150 PSI water
d)
200 PSI water
6.
The distance between a hanger and the centerline of an upright sprinkler shall not be less than
a)
3 inches
b)
4 inches
c)
5 inches
d)
6 inches
7.
A minimum clearance between the top of storage and a standard spray pendent sprinkler's deflector shall be?
a)
24 inches
b)
18 inches
c)
12 inches
d)
6 inches
8.
A one inch auxiliary drain valve on a wet-pipe system is required for an isolated trapped section of pipe when the capacity of that section is more than
a)
10 gallons
b)
20 gallons
c)
25 gallons
d)
50 gallons
9.
The minimum stock of spare sprinklers that shall be maintained on the premises for a sprinkler system having less than 300 sprinklers is
a)
3 spares
b)
6 spares
c)
12 spares
d)
18 spares
10.
The maximum size pipe that may be supported by a toggle in metal lath and plaster ceilings is ____inch
a)
1
b)
1 1/4
c)
1 1/2
d)
2
11.
The gallons per minute required by NFPA 13 to flush 6" pipe is:
a)
550
b)
880
c)
1000
d)
1560
12.
The size clamp bolts required on 10" underground is:
a)
5/8"
b)
3/4"
c)
7/8"
d)
11/16"
13.
The number of sprinklers that can be used on a 2" copper pipe in pipe schedule systems in ordinary hazard occupancy is:
a)
10
b)
12
c)
14
d)
8
14.
room is considered a bathroom in NFPA when it contains___________
a)
a toilet
b)
a sink
c)
A toilet, sink, shower, or tub
d)
A toilet, sink, shower, or tub; any room or compartment dedicated to personal hygiene
15.
Name an example of a light hazard occupancy:
a)
Church
b)
Tire storage
c)
Retail store
d)
Paint manufacturing
16.
Of the four items listed, the one required to be listed for Fire Sprinkler system applications is;
a)
Signs
b)
Hangers
c)
3/8" nuts
d)
Drain piping
17.
The temperature rating for a sprinkler with a green or yellow glass bulb is:
a)
200 degrees F
b)
175 degrees F
c)
212 degrees F
d)
175-225 degrees F
18.
Non- metallic escutcheons:
a)
are required to be listed
b)
protect the sprinkler from damage
c)
are preferred over metallic ones
d)
are preferred by the fire department
19.
Check valves are allowed to be used to separate sections of dry systems:
a)
never
b)
always
c)
if installed in a heated enclosure
d)
in extra hazard systems only
20.
Gridded dry systems:
a)
are an excellent way to provide required pressure and flow to the sprinklers
b)
are not allowed in the current NFPA-13 standard
c)
are used in residential systems only
d)
are used in attic systems only
21.
The maximum width of an exterior canopy that a Dry pendent sprinkler could cover, if the dry pendent sprinkler is listed for and installed at a 45 degree angle in the corner where the roof meets the exterior canopy wall is:
a)
4'
b)
5'
c)
6' 6"
d)
7' 6"
22.
Not more than ____automatic sprinklers shall be controlled by any one preaction valve on a single-interlock system.
a)
500
b)
750
c)
1000
d)
1250
23.
A hanger needs to support 5 times the weight of water filled pipe plus:
a)
250 lbs
b)
200 lbs
c)
100 lbs
d)
150 lbs
24.
The distance from the last hanger on a 2” piece of pipe to the end of the pipe cannot exceed:
a)
36"
b)
45"
c)
60"
d)
72"
25.
The parts of a hanger assembly that are required to be listed are:
a)
All of them
b)
Any threaded components
c)
Any components that attach directly to the pipe and building structure
d)
Any component that holds weight
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