Minnesota Journeyman Sprinkler Fitter
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✔ Complete Exam Questions covering major concepts
✔ Correct Answers with Detailed Explanations for deeper understanding
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✔ Latest Updated Version for reliable exam preparation
✔ Ideal for Fast Review and Last-Minute Study
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This study guide helps students simplify complex topics, identify key concepts quickly, and
strengthen exam confidence. By practicing with structured questions and reviewing detailed
answers, you can improve retention and boost your chances of achieving higher scores.
🎯 Perfect For
,• Final exam preparation
• Midterm exam revision
• Weekly study sessions
• Practicing exam-style questions
• Strengthening knowledge before tests
📘 A reliable and effective study companion for students who want structured practice,
clear explanations, and stronger exam performance.
How often do you inspect private fire hydrants?
Annually or after each operation
Reference: NFPA 25, 2017 Edition, Section 7.3.1 specifies that private fire hydrants
shall be inspected annually or after each operation.
What is NFPA 13R used for?
Residential occupancies up to and including four stories in height
Reference: NFPA 13R, 2016 Edition is titled “Standard for the Installation of Sprinkler
Systems in Low-Rise Residential Occupancies.”
What is the coverage area for Ordinary Hazard heads?
130 square feet
Reference: NFPA 13, 2016 Edition, Table 8.6.2.2.1(b)
What is the coverage area for Light Hazard heads?
225 square feet
Reference: NFPA 13, 2016 Edition, Section 8.6.2.2.1 and Table
8.6.2.2.1(a) and Minnesota State Fire Code, 2020 Edition, Section 903.3.1.1 adopts
NFPA 13 by reference.
What is the coverage area for Extra Hazard heads?
90-130 square feet
Reference: NFPA 13, 2016 Edition specifies typical coverage areas for extra hazard
occupancies, although specific variations may apply based on the hazard type and
storage arrangement.
What is the coverage area for ESFR heads?
100 square feet
Reference: NFPA 13, 2016 Edition, Section 8.12.2.2.1 specifies the maximum
allowable coverage area for ESFR sprinklers.
What is the coverage area for Storage heads?
100 or 130 square feet
Reference: NFPA 13, 2016 Edition, Section 12.6.2 specifies typical coverage areas for
storage occupancies, although specific variations may apply based on commodity
classification and storage height.
Minimum air pressure for a pressure tank?
75 psi
,Reference: NFPA 20, 2016 Edition, Section 14.2.4 specifies that the minimum air
pressure in a pressure tank shall be 75 psi.
What pipe sizes can feed 1½" hose lines and for what length?
1" for horizontal runs up to 20’
1¼" for 20’ to 80’
1½" for runs over 80’
Reference: NFPA 14, 2016 Edition, Section 7.3.1 specifies the minimum pipe sizes for
1½" hose lines based on length.
What are the bulb colors for each temperature rating?
Ordinary (135°F to 170°F / 57°C to 77°C):
Glass Bulb Colors: Orange or Red
Intermediate (175°F to 225°F / 79°C to 107°C):
Glass Bulb Colors: Yellow or Green
High (250°F to 300°F / 121°C to 149°C):
Glass Bulb Colors: Blue
Extra High (325°F to 375°F / 163°C to 191°C):
Glass Bulb Colors: Purple
Reference:
NFPA 13, 2016 Edition, Table 5.1.1.6.1
Question 104
Control valves that are controlling a fire sprinkler system in an area accessible to
the public, and has 20 or less sprinklers on it does not have to be monitored or
locked.
True/False
False
Per Minnesota State Fire Code, 2020 Edition, Section 903.4, all control valves for fire
sprinkler systems shall be electrically supervised by a listed fire alarm control unit,
regardless of the number of sprinklers served. This requirement does not have an
exception for systems with 20 or fewer sprinklers when accessible to the public.
Reference:
Minnesota State Fire Code, 2020 Edition, Section 903.4
How often is the interior of a pressure tank inspected?
The interior of pressure tanks used for fire protection systems must be inspected every
5 years and every 3 years for tanks without corrosion protection.
Reference:
NFPA 25, 2017 Edition, Section 9.2.5.1.1 specifies that the interior of steel tanks
without corrosion protection shall be inspected every 3 years.
How often do you flow standpipes?
5 years
Reference: NFPA 25, 2017 Edition, Section 6.3.2.1 specifies that standpipes shall be
flow tested at least every 5 years.
How many heads can be taken off a cold weather valve?
10
Reference: NFPA 13, 2016 Edition, Section 8.16.1.5.3 specifies that up to 10
sprinklers can be taken off a cold weather valve.
Hanger spacing from end of pipe
, 1" - 3’
1¼" - 4’
1½" and up - 5’
Reference: NFPA 13, 2016 Edition, Section 9.2.3.4.1 specifies the following hanger
spacing from the end of the pipe:
For 1-inch pipe: 36 inches
For 1 1/4-inch pipe: 48 inches
For 1 1/2-inch pipe and larger: 60 inches
Duration of water supply for NFPA 13D systems
System demand times 10 minutes
Reference: NFPA 13D, 2016 Edition, Section 8.6.2 specifies that the water supply for
one- and two-family dwellings should be sufficient for the system demand for a
minimum of 10 minutes.
Why must a check valve with a 3/32" hole in the Clapper be installed in the
system riser below the test valve in freezer spaces?
To prevent evaporation of priming water into system
Reference: NFPA 13, 2016 Edition, Section 7.8.2.7.1 specifies that a check valve with
a small hole in the clapper helps to maintain a slight air pressure in the system,
preventing the priming water from evaporating into the system, which could lead to
freezing issues.
Maximum time allowed for water flow alarms to sound
5 minutes
Reference: NFPA 13, 2016 Edition, Section 6.8.1 specifies that waterflow alarm
devices shall result in an audible alarm on the premises within 5 minutes after such flow
begins.
What pressure and flow are 1½" hose stations designed for?
50 gpm at system pressure
Reference: NFPA 14, 2016 Edition, Section 7.8.1.1.1 specifies that 1 1/2-inch hose
stations are designed to provide a minimum flow of 50 gpm at the system pressure.
Class III and Class I standpipe systems are designed for what pressures and
flows?
250 gpm @ 100 psi
Reference: NFPA 14, 2016 Edition, Section 7.8.1.1 specifies that Class I and Class III
standpipe systems shall be designed to provide a minimum flow of 250 gpm at a
pressure of 100 psi at the hydraulically most remote hose connection.
Class II standpipe systems are designed for what pressures and flows?
100 gpm @ 65 psi
Reference: NFPA 14, 2016 Edition, Section 7.8.1.2 specifies that Class II standpipe
systems shall be designed to provide a minimum flow of 100 gpm at a pressure of 65
psi at the hydraulically most remote hose connection.
Acceptance tests required for dry pipe systems
Hydro test, air test, alarm test
Reference: NFPA 13, 2016 Edition, Section 24.2.1 specifies that the acceptance test
for dry pipe systems includes a hydrostatic test, air test, and an alarm test.
Flow of a master stream is?
At least 250 gpm
Certification Exam Premium General Exam
Study Guide – Complete Questions with
Correct Detailed Answers
⭐ Brand New Version | Exam-Focused | Designed for High
Scores
Take your exam preparation to the next level with this Premium General Exam Study Guide.
This powerful resource is designed to help students review faster, understand key concepts
clearly, and perform confidently in exams.
Inside this guide, you will find complete exam questions paired with correct, detailed
answers that explain the reasoning behind each response. The structured format allows you to
focus on important and frequently tested topics, helping you study efficiently and effectively.
🔥 Key Highlights
✔ Complete Exam Questions covering major concepts
✔ Correct Answers with Detailed Explanations for deeper understanding
✔ Exam-Focused Content based on commonly tested material
✔ Well-Organized Format for quick and effective revision
✔ Latest Updated Version for reliable exam preparation
✔ Ideal for Fast Review and Last-Minute Study
🚀 Why Students Prefer This Guide
This study guide helps students simplify complex topics, identify key concepts quickly, and
strengthen exam confidence. By practicing with structured questions and reviewing detailed
answers, you can improve retention and boost your chances of achieving higher scores.
🎯 Perfect For
,• Final exam preparation
• Midterm exam revision
• Weekly study sessions
• Practicing exam-style questions
• Strengthening knowledge before tests
📘 A reliable and effective study companion for students who want structured practice,
clear explanations, and stronger exam performance.
How often do you inspect private fire hydrants?
Annually or after each operation
Reference: NFPA 25, 2017 Edition, Section 7.3.1 specifies that private fire hydrants
shall be inspected annually or after each operation.
What is NFPA 13R used for?
Residential occupancies up to and including four stories in height
Reference: NFPA 13R, 2016 Edition is titled “Standard for the Installation of Sprinkler
Systems in Low-Rise Residential Occupancies.”
What is the coverage area for Ordinary Hazard heads?
130 square feet
Reference: NFPA 13, 2016 Edition, Table 8.6.2.2.1(b)
What is the coverage area for Light Hazard heads?
225 square feet
Reference: NFPA 13, 2016 Edition, Section 8.6.2.2.1 and Table
8.6.2.2.1(a) and Minnesota State Fire Code, 2020 Edition, Section 903.3.1.1 adopts
NFPA 13 by reference.
What is the coverage area for Extra Hazard heads?
90-130 square feet
Reference: NFPA 13, 2016 Edition specifies typical coverage areas for extra hazard
occupancies, although specific variations may apply based on the hazard type and
storage arrangement.
What is the coverage area for ESFR heads?
100 square feet
Reference: NFPA 13, 2016 Edition, Section 8.12.2.2.1 specifies the maximum
allowable coverage area for ESFR sprinklers.
What is the coverage area for Storage heads?
100 or 130 square feet
Reference: NFPA 13, 2016 Edition, Section 12.6.2 specifies typical coverage areas for
storage occupancies, although specific variations may apply based on commodity
classification and storage height.
Minimum air pressure for a pressure tank?
75 psi
,Reference: NFPA 20, 2016 Edition, Section 14.2.4 specifies that the minimum air
pressure in a pressure tank shall be 75 psi.
What pipe sizes can feed 1½" hose lines and for what length?
1" for horizontal runs up to 20’
1¼" for 20’ to 80’
1½" for runs over 80’
Reference: NFPA 14, 2016 Edition, Section 7.3.1 specifies the minimum pipe sizes for
1½" hose lines based on length.
What are the bulb colors for each temperature rating?
Ordinary (135°F to 170°F / 57°C to 77°C):
Glass Bulb Colors: Orange or Red
Intermediate (175°F to 225°F / 79°C to 107°C):
Glass Bulb Colors: Yellow or Green
High (250°F to 300°F / 121°C to 149°C):
Glass Bulb Colors: Blue
Extra High (325°F to 375°F / 163°C to 191°C):
Glass Bulb Colors: Purple
Reference:
NFPA 13, 2016 Edition, Table 5.1.1.6.1
Question 104
Control valves that are controlling a fire sprinkler system in an area accessible to
the public, and has 20 or less sprinklers on it does not have to be monitored or
locked.
True/False
False
Per Minnesota State Fire Code, 2020 Edition, Section 903.4, all control valves for fire
sprinkler systems shall be electrically supervised by a listed fire alarm control unit,
regardless of the number of sprinklers served. This requirement does not have an
exception for systems with 20 or fewer sprinklers when accessible to the public.
Reference:
Minnesota State Fire Code, 2020 Edition, Section 903.4
How often is the interior of a pressure tank inspected?
The interior of pressure tanks used for fire protection systems must be inspected every
5 years and every 3 years for tanks without corrosion protection.
Reference:
NFPA 25, 2017 Edition, Section 9.2.5.1.1 specifies that the interior of steel tanks
without corrosion protection shall be inspected every 3 years.
How often do you flow standpipes?
5 years
Reference: NFPA 25, 2017 Edition, Section 6.3.2.1 specifies that standpipes shall be
flow tested at least every 5 years.
How many heads can be taken off a cold weather valve?
10
Reference: NFPA 13, 2016 Edition, Section 8.16.1.5.3 specifies that up to 10
sprinklers can be taken off a cold weather valve.
Hanger spacing from end of pipe
, 1" - 3’
1¼" - 4’
1½" and up - 5’
Reference: NFPA 13, 2016 Edition, Section 9.2.3.4.1 specifies the following hanger
spacing from the end of the pipe:
For 1-inch pipe: 36 inches
For 1 1/4-inch pipe: 48 inches
For 1 1/2-inch pipe and larger: 60 inches
Duration of water supply for NFPA 13D systems
System demand times 10 minutes
Reference: NFPA 13D, 2016 Edition, Section 8.6.2 specifies that the water supply for
one- and two-family dwellings should be sufficient for the system demand for a
minimum of 10 minutes.
Why must a check valve with a 3/32" hole in the Clapper be installed in the
system riser below the test valve in freezer spaces?
To prevent evaporation of priming water into system
Reference: NFPA 13, 2016 Edition, Section 7.8.2.7.1 specifies that a check valve with
a small hole in the clapper helps to maintain a slight air pressure in the system,
preventing the priming water from evaporating into the system, which could lead to
freezing issues.
Maximum time allowed for water flow alarms to sound
5 minutes
Reference: NFPA 13, 2016 Edition, Section 6.8.1 specifies that waterflow alarm
devices shall result in an audible alarm on the premises within 5 minutes after such flow
begins.
What pressure and flow are 1½" hose stations designed for?
50 gpm at system pressure
Reference: NFPA 14, 2016 Edition, Section 7.8.1.1.1 specifies that 1 1/2-inch hose
stations are designed to provide a minimum flow of 50 gpm at the system pressure.
Class III and Class I standpipe systems are designed for what pressures and
flows?
250 gpm @ 100 psi
Reference: NFPA 14, 2016 Edition, Section 7.8.1.1 specifies that Class I and Class III
standpipe systems shall be designed to provide a minimum flow of 250 gpm at a
pressure of 100 psi at the hydraulically most remote hose connection.
Class II standpipe systems are designed for what pressures and flows?
100 gpm @ 65 psi
Reference: NFPA 14, 2016 Edition, Section 7.8.1.2 specifies that Class II standpipe
systems shall be designed to provide a minimum flow of 100 gpm at a pressure of 65
psi at the hydraulically most remote hose connection.
Acceptance tests required for dry pipe systems
Hydro test, air test, alarm test
Reference: NFPA 13, 2016 Edition, Section 24.2.1 specifies that the acceptance test
for dry pipe systems includes a hydrostatic test, air test, and an alarm test.
Flow of a master stream is?
At least 250 gpm
