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?
Standard Coverage Area:
NFPA 13: NFPA 13 (Standard for the Installation of Sprinkler Systems) typically specifies a maximum
coverage area of 225 square feet per sprinkler head for Light Hazard occupancies. However, this can be
reduced to 200 square feet in certain scenarios
What is the coverage area for Ordinary Hazard heads?
The coverage area for Ordinary Hazard sprinkler heads depends on whether you're discussing Ordinary
Hazard Group 1 or Ordinary Hazard Group 2 occupancies:
Ordinary Hazard Group 1 (OH-1)
Maximum Coverage Area: 130 square feet per sprinkler head is the typical maximum allowed by NFPA
13.
Example Occupancies: Light manufacturing, warehouses storing non-combustible materials.
Ordinary Hazard Group 2 (OH-2)
Maximum Coverage Area: 100 square feet per sprinkler head is the typical maximum allowed by NFPA
13.
Example Occupancies: Warehouses with high piled combustibles, parking garages, car dealerships.
What is the coverage area for Extra Hazard heads?
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?
100 sq ft
What is the coverage area for Storage heads?
100 sq ft or 130 sq ft
Minimum air pressure for a pressure tank
75 psi
What pipe sizes can feed 1½" hose lines and for what length
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
ordinary - orange or red
intermediate - yellow or green
high - blue
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?
Standard Coverage Area:
NFPA 13: NFPA 13 (Standard for the Installation of Sprinkler Systems) typically specifies a maximum
coverage area of 225 square feet per sprinkler head for Light Hazard occupancies. However, this can be
reduced to 200 square feet in certain scenarios
What is the coverage area for Ordinary Hazard heads?
The coverage area for Ordinary Hazard sprinkler heads depends on whether you're discussing Ordinary
Hazard Group 1 or Ordinary Hazard Group 2 occupancies:
Ordinary Hazard Group 1 (OH-1)
Maximum Coverage Area: 130 square feet per sprinkler head is the typical maximum allowed by NFPA
13.
Example Occupancies: Light manufacturing, warehouses storing non-combustible materials.
Ordinary Hazard Group 2 (OH-2)
Maximum Coverage Area: 100 square feet per sprinkler head is the typical maximum allowed by NFPA
13.
Example Occupancies: Warehouses with high piled combustibles, parking garages, car dealerships.
What is the coverage area for Extra Hazard heads?
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?
100 sq ft
What is the coverage area for Storage heads?
100 sq ft or 130 sq ft
Minimum air pressure for a pressure tank
75 psi
What pipe sizes can feed 1½" hose lines and for what length
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
ordinary - orange or red
intermediate - yellow or green
high - blue
