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100+ Free NV C-2C Fire Detection Practice Questions

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2026 Statistics

Key Facts: NV C-2C Fire Detection Exam

55 Q

Official Exam Questions

PSI Nevada Contractor CIB updated 3/25/2026

39 of 55 points

Passing Score

PSI Nevada Contractor CIB updated 3/25/2026

2 hours

Time Allowed

PSI Nevada Contractor CIB updated 3/25/2026

USD 95

PSI Exam Fee (one portion)

PSI Nevada Contractor CIB updated 3/25/2026

Open Book

Book Policy

PSI Nevada Contractor CIB updated 3/25/2026

Nevada C-2C Fire Detection Contractor Examination is the official NSCB/PSI open book exam: 55 questions, 39 of 55 points, 2 hours, USD 95 (bulletin 270, updated 3/25/2026). Official delivery: English.

Sample NV C-2C Fire Detection Practice Questions

Try these sample questions to test your NV C-2C Fire Detection exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1On a 24-volt DC notification-appliance circuit, a horn-strobe draws 0.15 A. Using Ohm’s law, what is the device’s equivalent resistance?
A.3.6 ohms
B.16 ohms
C.160 ohms
D.360 ohms
Explanation: Ohm’s law is V = I × R, so R = V / I. 24 V divided by 0.15 A equals 160 ohms. C-2C candidates use this relationship to size conductors, estimate voltage drop, and check whether a notification appliance’s published current is consistent with the circuit voltage.
2In a series fire-alarm initiating circuit, which quantity is the same at every device?
A.Current through the circuit
B.Voltage dropped across each device
C.Wattage dissipated by each device
D.Resistance of each device
Explanation: In a series circuit the same current flows through every element. Voltage divides according to each device’s resistance, and wattage is I²R at each device. Conventional initiating-device circuits and end-of-line supervision depend on that single current path remaining continuous.
3A 24-volt notification appliance draws 125 mA. What electrical power does it consume while sounding?
A.0.33 watt
B.19.2 watts
C.3.0 watts
D.192 watts
Explanation: Electrical power is P = V × I. 24 V × 0.125 A = 3.0 W. Power figures from appliance data sheets are added when checking power-supply and battery capacity for a C-2C fire-detection system.
4Several 24-volt horn-strobes are connected in parallel on one notification-appliance circuit. Which statement is correct?
A.Each appliance sees the full circuit voltage, and the branch currents add at the source
B.The same current flows through every appliance, and voltages add
C.Total circuit resistance equals the sum of the individual resistances
D.Opening one appliance automatically opens the entire circuit
Explanation: Parallel loads share the same voltage. Each appliance draws its own current, and those currents add at the fire-alarm control unit or booster. Notification-appliance circuits are wired as a supervised path, but the appliances themselves are parallel loads across that path.
5Which statement about American Wire Gage (AWG) copper conductors used on fire-detection circuits is correct?
A.A larger AWG number always has a larger cross-section and lower resistance
B.18 AWG and 14 AWG copper have the same resistance per foot
C.AWG size has no effect on voltage drop if the circuit is power-limited
D.14 AWG copper has a larger cross-section and lower resistance per foot than 18 AWG copper
Explanation: In the AWG system, a smaller number is a larger conductor. 14 AWG copper is thicker than 18 AWG, so it has lower resistance per foot and less voltage drop for the same current and length. Notification-appliance runs that carry higher current are often upsized for that reason, even when Article 760 permits 18 AWG.
6Voltage drop on a fire-alarm notification circuit increases when which combination occurs?
A.Shorter run, larger conductors, and lower current
B.Longer run, smaller conductors, and higher alarm current
C.Higher source voltage only; length does not matter
D.Using stranded copper instead of solid copper of the same AWG
Explanation: DC voltage drop is I × R. Resistance rises with length and falls as conductor size increases, so a long, small-gage, high-current notification run has the largest drop. If the last appliance falls below the manufacturer’s minimum operating voltage, the circuit is not acceptable even if the panel output is 24 V.
7On a supervised conventional initiating-device circuit, which fault typically places a near-zero-resistance path across the pair and is not the same as an open?
A.An open caused by a broken conductor
B.A missing end-of-line resistor that leaves the pair open
C.A high-resistance splice that still completes the loop
D.A short circuit between the two circuit conductors
Explanation: A short is a near-zero-resistance connection between the two conductors. On a conventional IDC the control unit is designed to distinguish that low-resistance alarm or fault condition from the higher supervisory current that flows through the end-of-line resistor. An open is a break in continuity, not a short.
8Most listed 24-volt horn-strobes are polarized. If the notification-appliance circuit pair is reversed at the last device, what is the expected result?
A.The appliance typically will not operate, even though the circuit may still show supervision
B.The appliance operates at twice the candela rating
C.The appliance operates normally because polarity never matters on DC circuits
D.The fire-alarm control unit automatically corrects polarity at every appliance
Explanation: Polarized notification appliances contain a diode (or equivalent) so they draw alarm current only with the correct polarity. Reversing the pair at a device leaves that appliance silent. Supervision current on a Class B circuit can still flow through the end-of-line path, so a polarity error is easy to miss until a functional test.
9A 24-volt DC notification circuit has a total conductor resistance of 1.5 ohms and an alarm current of 2.0 A. What voltage remains at the last appliance if the control-unit output is 24.0 V?
A.21.0 V
B.22.5 V
C.24.0 V
D.27.0 V
Explanation: Voltage drop is I × R = 2.0 A × 1.5 Ω = 3.0 V. Voltage at the last appliance is 24.0 − 3.0 = 21.0 V. The installer then compares 21.0 V with the appliance’s listed minimum operating voltage. NFPA 72 (2007) requires notification appliances to receive a voltage within the manufacturer’s published range under worst-case load.
10Which NEC 2017 article specifically covers fire-alarm circuit installation, including power-limited and non-power-limited wiring?
A.Article 250
B.Article 300 only, with no fire-alarm article
C.Article 700
D.Article 760
Explanation: NEC 2017 Article 760, Fire Alarm Systems, is the article C-2C installers open for PLFA and NPLFA circuits, identification, abandoned cable, and the fire-alarm branch circuit. Article 250 covers grounding and bonding, Article 300 is general wiring methods, and Article 700 is emergency systems. Those articles apply only as 760 references them.

About the NV C-2C Fire Detection Exam

The Nevada C-2C Fire Detection Contractor Examination is the official Nevada State Contractors Board trade or management examination administered by PSI Services LLC. The official exam has 55 scored questions. Passing is 39 of 55 points in 2 hours. The examination is open book. Approved center references include NEC 2017, NFPA 101 (2003), NFPA 72 (2007) (allowed in center). PSI lists USD 95 for one examination portion and USD 140 if taken with CMS; otherwise USD 95 per trade exam (Candidate Information Bulletin updated 3/25/2026). NSCB requires a separate CMS examination for most new applicants, plus a USD 300 application fee and a USD 600 biennial license fee. This English-language MCQ bank is a study aid, not an official PSI form. It does not replace required trade experience, board approval, fingerprints, bonding, or the official examination.

Assessment

Open Book computer-based multiple-choice. NEC 2017, NFPA 101 (2003), NFPA 72 (2007) (allowed in center)

Time Limit

2 hours

Passing Score

39 of 55 points

Exam Fee

USD 95 (PSI Services LLC (for the Nevada State Contractors Board))

NV C-2C Fire Detection Exam Content Outline

9%

General Electrical Knowledge

Electrical theory (5 items)

15%

Wiring

Fire-alarm wiring (8 items)

5%

Grounding

Grounding (3 items)

9%

Power Supply

Power supplies (5 items)

27%

Detectors

Heat and smoke detectors (15 items)

25%

Alarms Notification

Notification appliances (14 items)

9%

General Regulations

General fire-alarm rules (5 items)

How to Pass the NV C-2C Fire Detection Exam

What You Need to Know

  • Passing score: 39 of 55 points
  • Assessment: Open Book computer-based multiple-choice. NEC 2017, NFPA 101 (2003), NFPA 72 (2007) (allowed in center)
  • Time limit: 2 hours
  • Exam fee: USD 95

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

NV C-2C Fire Detection Study Tips from Top Performers

1Distribute study time to the official bulletin 270 content outline (updated 3/25/2026)
2Use only the PSI-listed references; temporary tabs such as Post-it notes are prohibited
3Confirm NSCB experience documentation before scheduling with PSI
4This bank is an English-language MCQ study aid, not an official PSI form

Frequently Asked Questions

How many questions are on the Nevada C-2C Fire Detection Contractor Examination?

The official PSI examination has 55 scored questions. Passing is 39 of 55 points within 2 hours (Candidate Information Bulletin 270, updated 3/25/2026).

How much does the NV C-2C Fire Detection exam cost?

PSI lists USD 95 for one examination portion. Two portions cost USD 140 only if the second portion is CMS. NSCB charges a separate USD 300 application fee and USD 600 biennial license fee.

Is the NV C-2C Fire Detection exam open book?

Yes. PSI lists this examination as open book. NEC 2017, NFPA 101 (2003), NFPA 72 (2007) (allowed in center)

Do I still need the CMS examination?

CMS is the required Nevada business-and-law examination. Most new applicants must pass CMS and a trade examination for the requested classification. In most cases you will not retake an exam if you have actively served as a qualified employee in the same classification within the last four years.