Nevada Automatic Fire Sprinklers C41A Exam
**Question 1.** Which Nevada statute governs contractor licensing for the C‑41A sprinkler
classification?
A) NRS 624.010
B) NRS 624.150
C) NRS 624.300
D) NRS 624.450
Answer: B
Explanation: NRS 624.150 outlines licensing requirements for specialty contractors, including C‑41A
fire‑sprinkler work.
**Question 2.** A C‑41A contractor must submit which of the following to the Nevada State
Contractors Board before beginning work?
A) Proof of liability insurance only
B) A completed application, bond, and fee
C) Only a performance bond
D) A signed affidavit of experience
Answer: B
Explanation: The board requires a full application, the appropriate bond, and the licensing fee.
**Question 3.** Under NRS 624, which action can result in suspension of a C‑41A license?
A) Late payment of a personal loan
B) Failure to file a required lien notice
C) Using a non‑licensed apprentice
D) Missing a single continuing‑education class
Answer: C
,Nevada Automatic Fire Sprinklers C41A Exam
Explanation: Employing unlicensed personnel is grounds for disciplinary action, including suspension.
**Question 4.** The Nevada mechanics’ lien law requires a preliminary notice to be filed within how
many days after furnishing labor?
A) 5 days
B) 10 days
C) 20 days
D) 30 days
Answer: C
Explanation: A 20‑day notice protects lien rights for labor and materials.
**Question 5.** Which insurance is mandatory for all C‑41A contractors in Nevada?
A) Commercial auto
B) Workers’ compensation
C) Professional liability
D) Cyber‑risk insurance
Answer: B
Explanation: Nevada law requires workers’ compensation coverage for all construction contractors.
**Question 6.** NFPA 13 classifies a warehouse storing pallets of combustible goods as which hazard
group?
A) Light hazard – Group 1
B) Ordinary hazard – Group 2
C) Extra hazard – Group 1
,Nevada Automatic Fire Sprinklers C41A Exam
D) Extra hazard – Group 2
Answer: D
Explanation: High‑density storage of combustibles falls under Extra Hazard Group 2.
**Question 7.** The maximum spacing for a standard residential sprinkler (NFPA 13R) in a light‑hazard
occupancy is:
A) 9 ft × 9 ft
B) 12 ft × 12 ft
C) 15 ft × 15 ft
D) 20 ft × 20 ft
Answer: B
Explanation: NFPA 13R permits 12 ft by 12 ft spacing for residential light‑hazard.
**Question 8.** Which type of sprinkler head is specifically designed for high‑rise atriums with very high
ceilings?
A) ESFR
B) CMSA
C) Upright pendent
D) Sidewall
Answer: A
Explanation: ESFR (Early Suppression Fast Response) heads are used where large volumes are needed
quickly.
**Question 9.** In a wet‑pipe system, the minimum water temperature at the sprinkler head must be
at least:
, Nevada Automatic Fire Sprinklers C41A Exam
A) 40 °F
B) 45 °F
C) 50 °F
D) 55 °F
Answer: C
Explanation: NFPA 13 requires a minimum of 50 °F to prevent accidental discharge.
**Question 10.** A dry‑pipe system is required when:
A) The building is heated above 70 °F year‑round
B) The occupied space is below freezing temperature
C) The water supply is municipal
D) The occupancy is a hospital
Answer: B
Explanation: Dry‑pipe systems protect against water freezing in unheated spaces.
**Question 11.** The RTI (Response Time Index) value of a sprinkler head indicates:
A) Its flow rate in GPM
B) Its thermal sensitivity speed
C) Its pressure rating in PSI
D) Its corrosion resistance
Answer: B
Explanation: RTI measures how quickly a head reacts to heat.
**Question 1.** Which Nevada statute governs contractor licensing for the C‑41A sprinkler
classification?
A) NRS 624.010
B) NRS 624.150
C) NRS 624.300
D) NRS 624.450
Answer: B
Explanation: NRS 624.150 outlines licensing requirements for specialty contractors, including C‑41A
fire‑sprinkler work.
**Question 2.** A C‑41A contractor must submit which of the following to the Nevada State
Contractors Board before beginning work?
A) Proof of liability insurance only
B) A completed application, bond, and fee
C) Only a performance bond
D) A signed affidavit of experience
Answer: B
Explanation: The board requires a full application, the appropriate bond, and the licensing fee.
**Question 3.** Under NRS 624, which action can result in suspension of a C‑41A license?
A) Late payment of a personal loan
B) Failure to file a required lien notice
C) Using a non‑licensed apprentice
D) Missing a single continuing‑education class
Answer: C
,Nevada Automatic Fire Sprinklers C41A Exam
Explanation: Employing unlicensed personnel is grounds for disciplinary action, including suspension.
**Question 4.** The Nevada mechanics’ lien law requires a preliminary notice to be filed within how
many days after furnishing labor?
A) 5 days
B) 10 days
C) 20 days
D) 30 days
Answer: C
Explanation: A 20‑day notice protects lien rights for labor and materials.
**Question 5.** Which insurance is mandatory for all C‑41A contractors in Nevada?
A) Commercial auto
B) Workers’ compensation
C) Professional liability
D) Cyber‑risk insurance
Answer: B
Explanation: Nevada law requires workers’ compensation coverage for all construction contractors.
**Question 6.** NFPA 13 classifies a warehouse storing pallets of combustible goods as which hazard
group?
A) Light hazard – Group 1
B) Ordinary hazard – Group 2
C) Extra hazard – Group 1
,Nevada Automatic Fire Sprinklers C41A Exam
D) Extra hazard – Group 2
Answer: D
Explanation: High‑density storage of combustibles falls under Extra Hazard Group 2.
**Question 7.** The maximum spacing for a standard residential sprinkler (NFPA 13R) in a light‑hazard
occupancy is:
A) 9 ft × 9 ft
B) 12 ft × 12 ft
C) 15 ft × 15 ft
D) 20 ft × 20 ft
Answer: B
Explanation: NFPA 13R permits 12 ft by 12 ft spacing for residential light‑hazard.
**Question 8.** Which type of sprinkler head is specifically designed for high‑rise atriums with very high
ceilings?
A) ESFR
B) CMSA
C) Upright pendent
D) Sidewall
Answer: A
Explanation: ESFR (Early Suppression Fast Response) heads are used where large volumes are needed
quickly.
**Question 9.** In a wet‑pipe system, the minimum water temperature at the sprinkler head must be
at least:
, Nevada Automatic Fire Sprinklers C41A Exam
A) 40 °F
B) 45 °F
C) 50 °F
D) 55 °F
Answer: C
Explanation: NFPA 13 requires a minimum of 50 °F to prevent accidental discharge.
**Question 10.** A dry‑pipe system is required when:
A) The building is heated above 70 °F year‑round
B) The occupied space is below freezing temperature
C) The water supply is municipal
D) The occupancy is a hospital
Answer: B
Explanation: Dry‑pipe systems protect against water freezing in unheated spaces.
**Question 11.** The RTI (Response Time Index) value of a sprinkler head indicates:
A) Its flow rate in GPM
B) Its thermal sensitivity speed
C) Its pressure rating in PSI
D) Its corrosion resistance
Answer: B
Explanation: RTI measures how quickly a head reacts to heat.
