PracticeVideosBlogFlashcardsEspañol
All Practice Exams

Free Practice Questions for MS Fire Sprinklers

Exam-style questions and explanations by OpenExamPrep.

✓ No registration✓ No credit card
100+ Questions
100% Free

Loading practice questions...

Same family resources

Explore More Mississippi Contractor Licensing Examinations

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Mississippi Alarm Systems and Equipment Examination

Practice Questions

Mississippi Boiler Installation and Repair Examination

Practice Questions

Mississippi Building Construction Examination

Practice Questions

Mississippi Carpentry Examination

Practice Questions

Mississippi Communication Systems Examination

Practice Questions

Mississippi Concrete Examination

Practice Questions
Exam Review

Key Facts: MS Fire Sprinklers Exam

70%

Passing Score

PSI MS Contractor Bulletin 4/23/2026

60 Q

Official Exam Questions

PSI MS Contractor Bulletin 4/23/2026

2 hours

Time Allowed

PSI MS Contractor Bulletin 4/23/2026

$120

PSI Exam Fee

PSI MS Contractor Bulletin 4/23/2026

Open book

Exam Format

PSI MS Contractor Bulletin 4/23/2026

MS Fire Sprinklers PSI trade exam: 60 questions, 70% pass, 2 hours, fee $120. Open-book MSBOC classification (bulletin 4/23/2026).

Sample MS Fire Sprinklers Practice Questions

Try these sample questions to review concepts for the MS Fire Sprinklers exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Per NFPA 13 (2019), which occupancy hazard classification applies to typical offices, churches, educational classrooms, and hospital patient rooms?
A.Ordinary Hazard Group 1
B.Light Hazard
C.Ordinary Hazard Group 2
D.Extra Hazard Group 1
Explanation: NFPA 13 classifies occupancies by quantity and combustibility of contents, not by the building-code occupancy group. Offices, churches, classrooms, and hospital patient rooms are Light Hazard because the fuel load is low and fire is expected to develop slowly.
2What is the defining feature of a wet-pipe sprinkler system under NFPA 13?
A.Water is in the piping at all times, and each sprinkler opens independently when heated
B.Air or nitrogen fills the piping until a dry-pipe valve trips
C.All sprinklers are open and water waits at a deluge valve
D.Water is admitted only after a separate detection system and a sprinkler both operate
Explanation: A wet-pipe system keeps water in the piping under pressure. Only the sprinklers that reach their rated temperature open, which is why wet systems are the simplest and preferred arrangement wherever freezing is not a concern.
3Where piping cannot be reliably kept above freezing, which automatic sprinkler system type is the usual NFPA 13 choice?
A.Standard wet-pipe without heat or listed antifreeze
B.Deluge with all open sprinklers
C.Dry-pipe, with air or nitrogen in the piping and water held at the dry-pipe valve
D.A pipe-schedule wet system with extra hangers
Explanation: Dry-pipe systems keep water out of the branch piping until a sprinkler opens and the dry-pipe valve trips. They are the standard automatic arrangement for loading docks, unheated attics, and similar spaces that can freeze.
4Which formula gives sprinkler discharge in the NFPA 13 hydraulic method?
A.Q = K√P, where Q is gpm, K is the sprinkler K-factor, and P is residual pressure at the sprinkler in psi
B.Q = P / K
C.Q = K × P
D.Q = K² × P
Explanation: Discharge is Q = K√P. Flow increases with the square root of pressure, so doubling pressure does not double flow. Every hydraulic calculation in NFPA 13 starts from this relationship at each flowing sprinkler.
5What is the nominal K-factor of a standard 1/2-inch orifice spray sprinkler?
A.8.0
B.5.6
C.11.2
D.2.8
Explanation: A 1/2-inch nominal orifice spray sprinkler has K = 5.6. That value is used in Q = K√P and is the baseline against which large-orifice (K-8.0) and extra-large-orifice sprinklers are compared.
6Unless a listed exception applies, new aboveground sprinkler piping is hydrostatically tested at which acceptance pressure and duration?
A.150 psi for 1 hour
B.100 psi for 2 hours
C.200 psi (or 50 psi above maximum working pressure if that working pressure exceeds 150 psi) for 2 hours
D.250 psi for 30 minutes
Explanation: NFPA 13 requires a 2-hour hydrostatic test at 200 psi, or at 50 psi above the maximum system working pressure when that working pressure is more than 150 psi. The test confirms joints and fittings will hold before the system is placed in service.
7What is the ordinary temperature classification range for automatic sprinklers?
A.135°F to 170°F
B.175°F to 225°F
C.250°F to 300°F
D.100°F to 130°F
Explanation: Ordinary-temperature sprinklers are rated 135°F to 170°F, with 155°F the most common glass-bulb rating. They are used where maximum ceiling temperature does not exceed 100°F.
8For standard spray sprinklers in Light Hazard occupancies, what is the maximum protection area per sprinkler under NFPA 13?
A.100 ft²
B.130 ft²
C.168 ft²
D.225 ft²
Explanation: NFPA 13 allows up to 225 ft² per standard spray sprinkler in Light Hazard, with a maximum spacing of 15 ft. That coverage is larger than Ordinary or Extra Hazard because the expected fire is smaller.
9What is the minimum residual operating pressure at a standard spray sprinkler unless the listing requires a higher value?
A.5 psi
B.7 psi
C.10 psi
D.15 psi
Explanation: NFPA 13 sets a 7 psi minimum residual at each flowing standard spray sprinkler. The minimum exists so the deflector can form a complete spray pattern; listed residential or storage sprinklers may require a higher pressure.
10How must a pendent spray sprinkler be oriented?
A.Deflector down, discharging below the pipe or fitting
B.Deflector up, sitting on top of the branch line
C.Deflector horizontal against a wall unless it is a sidewall sprinkler
D.At 45 degrees toward the nearest exit
Explanation: A pendent sprinkler hangs below the fitting with the deflector down so water breaks into the listed hemispherical pattern. Installing it upright or sideways destroys the pattern and is not permitted except for sprinklers listed for that orientation.

About the MS Fire Sprinklers Exam

Mississippi Fire Sprinklers Contractor Examination is a classification trade examination administered by PSI for the Mississippi State Board of Contractors. The official open-book exam has 60 questions, a 70% passing standard, and 2 hours allowed. PSI examination fee is $120 per portion (bulletin updated 4/23/2026). This English-language MCQ bank is a study aid for the official content outline; it is not an official PSI form, does not replace the required Law and Business Management exam, and is not a substitute for MSBOC application review or the official open-book examination.

Exam sponsor: PSI Services LLC (for Mississippi State Board of Contractors). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

60 questions

Time Limit

2 hours

Passing Score

70%

Exam / Certification Fees

$120

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

38%

Fire Sprinkler Systems

NFPA 13 sprinkler system installation

20%

Fire Sprinkler -- Wet and Dry Chemical Systems

Wet and dry chemical extinguishing systems

17%

Fire Sprinkler -- Standpipe

Standpipe and hose systems

12%

Inspection, Testing and Maintenance

ITM of water-based fire protection

13%

General Knowledge and Regulations

Codes and general fire-protection knowledge

Preparing for the MS Fire Sprinklers Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 60 questions
  • Time limit: 2 hours
  • Exam / certification fees: $120 Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

MS Fire Sprinklers: Suggested Study Strategy

1Study only the approved references listed for this classification in the current PSI Mississippi Contractor bulletin (updated 4/23/2026)
2Practice open-book navigation with permanent tabs and indexes before test day
3Drill OSHA 29 CFR 1926 topics that appear across nearly every trade outline
4Confirm MSBOC classification scope and eligibility at msboc.us before scheduling with PSI
5All applicants must also pass Law and Business Management unless it is waived

Frequently Asked Questions

How many questions are on the MS Fire Sprinklers exam?

The official PSI examination has 60 scored questions (plus possible unscored experimental items). Passing is 70% within 2 hours.

How much does the MS Fire Sprinklers exam cost?

PSI lists $120 per examination portion (Candidate Information Bulletin updated 4/23/2026). MSBOC application fees are separate: $400 commercial or $50 residential. Additional classifications are $100 each.

Is the Mississippi contractor exam open book?

Yes. PSI administers MSBOC classification exams as open book. Only bulletin-listed approved references are allowed; temporary tabs such as Post-it notes are prohibited.

Do I still need the Law and Business Management exam?

Yes. MSBOC requires the Mississippi Law and Business Management exam (50 questions, 70%, 2 hours) of all applicants. Reciprocity may waive a trade exam in some cases but does not waive Law and Business.