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100+ Free NM CID MS-14 Practice Questions

Prepare for the New Mexico CID MS-14 Dry Chemical Fire Protection Examination exam with instant access — no signup required.

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2026 Statistics

Key Facts: NM CID MS-14 Exam

75%

Passing Score

PSI NM Contractor Bulletin 4/3/2026

50 Q

Official Exam Questions

PSI NM Contractor Bulletin 4/3/2026

90 min

Time Allowed

PSI NM Contractor Bulletin 4/3/2026

USD 68.88

PSI Exam Fee

PSI NM Contractor Bulletin 4/3/2026

NM CID MS-14 is a 50-question PSI dry chemical fire protection exam, 75% pass, 90 minutes, USD 68.88 (bulletin 4/3/2026).

Sample NM CID MS-14 Practice Questions

Try these sample questions to test your NM CID MS-14 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under NFPA 2001 (2008), a clean agent is best described as an extinguishing medium that:
A.Leaves a soapy film that must be washed from cooking equipment
B.Is electrically conductive and intended only for Class D metal fires
C.Is volatile or gaseous and leaves no residue that requires cleanup after discharge
D.Is a dry powder stored only in cartridge-operated hand extinguishers
Explanation: NFPA 2001 defines clean agents as volatile or gaseous fire extinguishants that leave no residue. That property is why they are selected for electronics, archives, and other occupancies where water, foam, or dry chemical cleanup would damage the protected contents. Wet chemical, dry chemical, and combustible-metal powders are different agent families governed by other standards.
2Which standard is the primary design and installation reference for clean-agent fire-extinguishing systems on the MS-14 exam?
A.NFPA 12
B.NFPA 17
C.NFPA 2001
D.NFPA 13
Explanation: NFPA 2001 (2008) is the clean-agent standard. NFPA 12 covers carbon dioxide, NFPA 17 covers dry chemical, and NFPA 13 is water sprinklers, which are outside the MS-14 gaseous/chemical scope. Selecting the right book is the first open-book step on this exam.
3Most listed clean-agent systems protect a room by which application method?
A.Local application that coats only the burning surface
B.Hose-stream application from a portable cylinder
C.Low-expansion foam discharge across an open tank
D.Total flooding of an enclosure to a design concentration
Explanation: Clean-agent systems are almost always total-flooding designs: the enclosure is filled to a calculated volumetric concentration and that concentration is held. Local application is the usual method for many dry-chemical and carbon-dioxide hazards that cannot be enclosed. Foam and hose streams are different extinguishing methods.
4Why does NFPA 2001 require a clean-agent hold time after discharge?
A.To give the building sprinkler system time to start flowing water
B.To keep the design concentration long enough to finish extinguishment and prevent reignition until responders can act
C.To allow the abort switch to reset the cylinders automatically
D.To cool the agent storage tanks before they can be refilled
Explanation: Hold time is the period during which the enclosure must retain a specified fraction of the design concentration. It exists so the fire stays out and hot surfaces cannot reignite the fuel before trained personnel arrive. Sprinkler timing, abort-switch reset, and cylinder cooling are not the purpose of hold time.
5In NFPA 2001 toxicology tables, NOAEL means:
A.The lowest concentration at which an adverse effect has been observed
B.The agent concentration remaining after a 10-minute hold time
C.The minimum extinguishing concentration measured in a cup-burner test
D.The highest concentration at which no adverse toxicological or physiological effect has been observed
Explanation: NOAEL is the No Observed Adverse Effect Level: the highest tested concentration with no observed adverse effect. Designers compare the system design concentration to NOAEL when deciding whether a space may be normally occupied. It is not the extinguishing concentration and it is not the leftover concentration after hold time.
6LOAEL for a clean agent is:
A.The lowest concentration at which an adverse effect has been observed
B.The maximum permitted leakage area of the enclosure
C.The oxygen concentration remaining after an inert-gas discharge
D.The factory-fill pressure of the agent cylinder
Explanation: LOAEL is the Lowest Observed Adverse Effect Level. Concentrations at or above LOAEL are treated more restrictively than concentrations at or below NOAEL, especially for normally occupied rooms. Oxygen leftover, leakage area, and cylinder pressure are separate design items.
7For a normally occupied enclosure, NFPA 2001 expects the clean-agent design concentration to:
A.Exceed LOAEL so the fire is knocked down faster
B.Equal the cup-burner extinguishing concentration with no safety factor
C.Remain at or below the agent's NOAEL so occupants are not exposed above the no-effect level
D.Be at least 34 percent by volume regardless of the agent
Explanation: In normally occupied spaces the design concentration is kept at or below NOAEL. Going above NOAEL, and especially above LOAEL, triggers exposure-time limits or a requirement that the space not be normally occupied. Thirty-four percent is a carbon-dioxide surface-flooding figure, not a clean-agent occupancy rule.
8How do inert-gas clean agents extinguish fire compared with typical halocarbon clean agents?
A.Inert gases reduce oxygen in the enclosure; halocarbons absorb heat and interrupt the flame chemistry
B.Inert gases saponify grease; halocarbons freeze the fuel surface
C.Both agents work only by coating the fuel with a dry powder
D.Halocarbons reduce oxygen to about 8 percent; inert gases leave a conductive film
Explanation: Inert-gas agents (for example IG-541 or IG-55) dilute the atmosphere so oxygen falls below the level that will support flaming. Halocarbon agents (for example HFC-227ea or FK-5-1-12) extinguish primarily by heat absorption and chemical interruption of the flame. Neither family is a saponifying wet chemical or a dry powder.
9What is the intended function of an abort switch on a clean-agent releasing system?
A.Permanently silence the building fire-alarm horns
B.Bypass supervision of the releasing circuit for the rest of the shift
C.Close the agent-cylinder valves after a completed discharge
D.Delay or prevent agent discharge only while the switch is held operated
Explanation: An abort switch is a dead-man control: it delays or prevents release only while it is held. It gives an occupant time to investigate a detector alarm before the predischarge timer expires. It is not a silence switch, a post-discharge close command, or a standing maintenance bypass.
10A predischarge alarm on a clean-agent system is provided primarily to:
A.Start the kitchen exhaust fan
B.Warn occupants to leave before the agent discharges
C.Open pressure-relief vents after the hold time ends
D.Reset cross-zoned smoke detectors
Explanation: NFPA 2001 requires a predischarge alarm and a time delay sufficient for people to leave the enclosure before agent release, except where a delay would seriously increase the fire threat. The alarm is a life-safety warning, not a fan start, vent control, or detector-reset function.

About the NM CID MS-14 Exam

The New Mexico CID MS-14 examination covers gaseous and chemical fire-protection systems. The official open-book PSI exam has 50 scored questions, a 75% passing standard (38 points), and 90 minutes allowed. Allowed references include NFPA 72 (2010), NFPA 10 (2007), NFPA 11 (2005), NFPA 12A (2009), NFPA 17 (2009), NFPA 17A (2009), NFPA 96 (2008), UPC 2021, UMC 2021, NFPA 2001 (2008), and NFPA 12 (2008). NMAC 14.6.6 MS-14 requires four years of experience and covers gaseous or chemical-based fire protection systems including carbon dioxide and clean agents, pressurized storage tanks, valves, temperature-sensing devices, solenoid or safety shut-off devices, and incidental 24-volt controls. PSI lists the fee at USD 68.88 (bulletin updated 4/3/2026). This English-language MCQ bank is a study aid, not an official PSI form.

Questions

50 scored questions

Time Limit

90 minutes

Passing Score

75% (38 of 50 points)

Exam Fee

USD 68.88 (PSI Services LLC (for New Mexico Construction Industries Division))

NM CID MS-14 Exam Content Outline

34%

Clean Agents and Alternative Systems

Clean agents and alternative systems (17 items)

10%

Foam Systems

Foam systems (5 items)

16%

Wet Chemical Systems

Wet chemical systems (8 items)

12%

Dry Chemical Systems

Dry chemical systems (6 items)

4%

Carbon Dioxide Systems

Carbon dioxide systems (2 items)

8%

Portable Fire Extinguishers

Portable fire extinguishers (4 items)

16%

Commercial Kitchen Equipment

Commercial kitchen equipment (8 items)

How to Pass the NM CID MS-14 Exam

What You Need to Know

  • Passing score: 75% (38 of 50 points)
  • Exam length: 50 questions
  • Time limit: 90 minutes
  • Exam fee: USD 68.88

Keys to Passing

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

NM CID MS-14 Study Tips from Top Performers

1Clean agents, wet chemical, and kitchen equipment are 33 of 50 official items. Study NFPA 2001, 17A, and 96 as listed in the PSI bulletin.
2This bank is an English-language MCQ study aid, not an official PSI form

Frequently Asked Questions

How many questions are on the NM MS-14 exam?

The official PSI examination has 50 scored questions. Passing is 75% (38 points) within 90 minutes (bulletin updated 4/3/2026).