MINNESOTA
JOURNEYMAN
SPRINKLER FITTER
EXAMINATION
MINNESOTA JOURNEYMAN SPRINKLER
MINNESOTA JOURNEYMAN
Evatee 10/17/24
SPRINKLER
,MINNESOTA JOURNEYMAN SPRINKLER
FITTER EXAMINATION (THIS IS A
COMBINATION OF TEST QUESTIONS I'VE
ENCOUNTERED, DEVON'S CHEAT SHEET, AND
A PILE OF TEST REVIEWS FROM PREVIOUS
YEARS) GOOD LUCK!!
What is the coverage area for Light Hazard heads? Answer - NFPA 13 - 2016
**8.5.2.2.2** refers to the maximum coverage area for *any type of sprinkler*,
setting a general limit.
* **8.6.2.2.2** specifically addresses Light Hazard sprinklers, imposing the
more restrictive 225 square foot (20.9 m²) maximum coverage.
What is the coverage area for Ordinary Hazard heads? Answer - NFPA 13 -
2016 Table 8.6.2.2.1(b) states the maximum coverage area for Ordinary Hazard
sprinklers is **130 square feet (12.1 square meters)**.
What is the coverage area for Extra Hazard heads? Answer - Typical Coverage
Areas:
NFPA 13: NFPA 13 (Standard for the Installation of Sprinkler Systems) often
specifies a maximum coverage area of 90-130 square feet per sprinkler head
for Extra Hazard occupancies.
Specific Variations: The exact coverage area depends on factors like the type of
hazard, storage arrangement, and the specific sprinkler listing.
What is the coverage area for ESFR heads? Answer - 100 sq ft
,What is the coverage area for Storage heads? Answer - 100 sq ft or 130 sq ft
Minimum air pressure for a pressure tank Answer - 75 psi
What pipe sizes can feed 1½" hose lines and for what length Answer - must be
connected to mains at least 2½" in diameter
1" for horizontal runs up to 20'
1¼" for 20' to 80'
1½" for runs over 80'
What are the bulb colors for each temperature rating Answer - ordinary -
orange or red
intermediate - yellow or green
high - blue
extra high - purple
very extra high - black
ultra high - black
How often is the interior of a pressure tank inspected Answer - 5 years for all,
3 years for tanks without corrosion protection
How often do you flow standpipes Answer - 5 years
How many heads can be taken off a cold weather valve Answer - 10
Hanger spacing from end of pipe Answer - 1" - 3'
, 1¼" - 4'
1½" and up - 5'
Duration of water supply for NFPA 13D systems Answer - system demand times
10 minutes
Why is a check valve with a 3/32" hole in Clapper required to be installed in the
system riser below the test valve in freezer spaces Answer - prevent
evaporation of priming water into system
Maximum time allowed for water flow alarms to sound Answer - 5 minutes
what pressure and flow are 1½" hose stations designed for Answer - 50 gpm at
system pressure
class III and class I standpipe systems are designed for what pressures and
flows Answer - 250 gpm @ 100 psi
class II standpipe systems are designed for what pressures and flows Answer -
100 gpm @ 65 psi
Acceptance tests required for dry pipe systems Answer - hydro test, air test,
alarm test
flow of a master stream is? Answer - at least 250 gpm
bypass around check valve on tank shall be required to fill the tank in how
many hours? what is the minimum size of this bypass? Answer - 8 hours, 2"
diameter
JOURNEYMAN
SPRINKLER FITTER
EXAMINATION
MINNESOTA JOURNEYMAN SPRINKLER
MINNESOTA JOURNEYMAN
Evatee 10/17/24
SPRINKLER
,MINNESOTA JOURNEYMAN SPRINKLER
FITTER EXAMINATION (THIS IS A
COMBINATION OF TEST QUESTIONS I'VE
ENCOUNTERED, DEVON'S CHEAT SHEET, AND
A PILE OF TEST REVIEWS FROM PREVIOUS
YEARS) GOOD LUCK!!
What is the coverage area for Light Hazard heads? Answer - NFPA 13 - 2016
**8.5.2.2.2** refers to the maximum coverage area for *any type of sprinkler*,
setting a general limit.
* **8.6.2.2.2** specifically addresses Light Hazard sprinklers, imposing the
more restrictive 225 square foot (20.9 m²) maximum coverage.
What is the coverage area for Ordinary Hazard heads? Answer - NFPA 13 -
2016 Table 8.6.2.2.1(b) states the maximum coverage area for Ordinary Hazard
sprinklers is **130 square feet (12.1 square meters)**.
What is the coverage area for Extra Hazard heads? Answer - Typical Coverage
Areas:
NFPA 13: NFPA 13 (Standard for the Installation of Sprinkler Systems) often
specifies a maximum coverage area of 90-130 square feet per sprinkler head
for Extra Hazard occupancies.
Specific Variations: The exact coverage area depends on factors like the type of
hazard, storage arrangement, and the specific sprinkler listing.
What is the coverage area for ESFR heads? Answer - 100 sq ft
,What is the coverage area for Storage heads? Answer - 100 sq ft or 130 sq ft
Minimum air pressure for a pressure tank Answer - 75 psi
What pipe sizes can feed 1½" hose lines and for what length Answer - must be
connected to mains at least 2½" in diameter
1" for horizontal runs up to 20'
1¼" for 20' to 80'
1½" for runs over 80'
What are the bulb colors for each temperature rating Answer - ordinary -
orange or red
intermediate - yellow or green
high - blue
extra high - purple
very extra high - black
ultra high - black
How often is the interior of a pressure tank inspected Answer - 5 years for all,
3 years for tanks without corrosion protection
How often do you flow standpipes Answer - 5 years
How many heads can be taken off a cold weather valve Answer - 10
Hanger spacing from end of pipe Answer - 1" - 3'
, 1¼" - 4'
1½" and up - 5'
Duration of water supply for NFPA 13D systems Answer - system demand times
10 minutes
Why is a check valve with a 3/32" hole in Clapper required to be installed in the
system riser below the test valve in freezer spaces Answer - prevent
evaporation of priming water into system
Maximum time allowed for water flow alarms to sound Answer - 5 minutes
what pressure and flow are 1½" hose stations designed for Answer - 50 gpm at
system pressure
class III and class I standpipe systems are designed for what pressures and
flows Answer - 250 gpm @ 100 psi
class II standpipe systems are designed for what pressures and flows Answer -
100 gpm @ 65 psi
Acceptance tests required for dry pipe systems Answer - hydro test, air test,
alarm test
flow of a master stream is? Answer - at least 250 gpm
bypass around check valve on tank shall be required to fill the tank in how
many hours? what is the minimum size of this bypass? Answer - 8 hours, 2"
diameter
