NEVADA C-2
ELECTRICAL CONTRACTOR EXAM
PRACTICE EXAMINATION | 2026 STUDY EDITION
200 ORIGINAL PRACTICE QUESTIONS
CORRECT ANSWERS & DETAILED RATIONALES
Independent Examination Preparation Material — Not affiliated with or endorsed by PSI or the Nevada
State Contractors Board.
,NEVADA C-2 ELECTRICAL PRACTICE EXAMINATION | 2026
EXAM INFORMATION & QUICK STUDY INSTRUCTIONS
Nevada C-2 covers installation of electrical wires, fixtures, appliances, apparatuses, raceways, and
conduits. The Nevada State Contractors Board directs applicants to PSI and requires authorization
before scheduling. A PSI C-2 outline retrieved for this publication lists 80 questions, 56 correct to pass,
and 3.5 hours; another PSI contractor instruction document lists 240 minutes. Because these official
documents conflict, confirm the current duration and permitted references in your individual PSI
candidate bulletin.
This independent workbook contains 200 original study questions across the 15 subject areas in the
published C-2 outline. Each question has four options, its correct answer, and an explanation. The
200-question length and questions are not an official PSI examination. The calculation questions
explicitly state assumptions; for real projects, verify current adopted codes, local amendments, and
manufacturer instructions.
Study method: answer before reading the green answer box; review the blue rationale; revisit weak
subjects using the reference list. This booklet emphasizes fundamental reasoning and safety, not
memorization of unverified code-table values.
Independent Exam Preparation Material Page 2
,NEVADA C-2 ELECTRICAL PRACTICE EXAMINATION | 2026
GENERAL ELECTRICAL KNOWLEDGE
QUESTION 001 | A circuit measures 480 V across a 10-ohm resistance. What current flows?
A) 48 A
B) 24 A
C) 72 A
D) 96 A
CORRECT ANSWER: A) 48 A
EXPLANATION & RATIONALE
Ohm’s law gives I = V/R = 480/10 = 48 amperes. Use the specified voltage and resistance; this is a simplified
resistive-circuit calculation. For actual installations, consult the applicable adopted code edition, equipment
instructions, and authority having jurisdiction.
QUESTION 002 | A load draws 30 A at 240 V. What is its apparent power?
A) 14400 VA
B) 7200 VA
C) 3600 VA
D) 10800 VA
CORRECT ANSWER: B) 7200 VA
EXPLANATION & RATIONALE
Apparent power for the stated single-phase values is S = V × I = 240 × 30 = 7200 VA. This does not by itself
establish real power for a reactive load. For actual installations, consult the applicable adopted code edition,
equipment instructions, and authority having jurisdiction.
QUESTION 003 | A 2400-W resistive load operates at 480 V. What current does it draw?
A) 7.5 A
B) 10 A
C) 5 A
D) 2.5 A
CORRECT ANSWER: C) 5 A
EXPLANATION & RATIONALE
For the stated resistive load, I = P/V = 2400/480 = 5 A. Reactive loads require additional power-factor
considerations. For actual installations, consult the applicable adopted code edition, equipment instructions,
and authority having jurisdiction.
Independent Exam Preparation Material Page 3
, NEVADA C-2 ELECTRICAL PRACTICE EXAMINATION | 2026
QUESTION 004 | Two resistors of 2 ohms each are in series. What is their combined
resistance?
A) 2 ohms
B) 6 ohms
C) 8 ohms
D) 4 ohms
CORRECT ANSWER: D) 4 ohms
EXPLANATION & RATIONALE
Series resistances add: Rtotal = 2 + 2 = 4 ohms. This assumes ideal resistors. For actual installations, consult
the applicable adopted code edition, equipment instructions, and authority having jurisdiction.
QUESTION 005 | Two equal 10-ohm resistors are connected in parallel. What is equivalent
resistance?
A) 5 ohms
B) 2.5 ohms
C) 7.5 ohms
D) 10 ohms
CORRECT ANSWER: A) 5 ohms
EXPLANATION & RATIONALE
Two equal resistances in parallel give Rtotal = R/2 = 10/2 = 5 ohms. For actual installations, consult the
applicable adopted code edition, equipment instructions, and authority having jurisdiction.
QUESTION 006 | A circuit measures 208 V across a 8-ohm resistance. What current flows?
A) 52 A
B) 26 A
C) 13 A
D) 39 A
CORRECT ANSWER: B) 26 A
EXPLANATION & RATIONALE
Ohm’s law gives I = V/R = 208/8 = 26 amperes. Use the specified voltage and resistance; this is a simplified
resistive-circuit calculation. For actual installations, consult the applicable adopted code edition, equipment
instructions, and authority having jurisdiction.
Independent Exam Preparation Material Page 4
ELECTRICAL CONTRACTOR EXAM
PRACTICE EXAMINATION | 2026 STUDY EDITION
200 ORIGINAL PRACTICE QUESTIONS
CORRECT ANSWERS & DETAILED RATIONALES
Independent Examination Preparation Material — Not affiliated with or endorsed by PSI or the Nevada
State Contractors Board.
,NEVADA C-2 ELECTRICAL PRACTICE EXAMINATION | 2026
EXAM INFORMATION & QUICK STUDY INSTRUCTIONS
Nevada C-2 covers installation of electrical wires, fixtures, appliances, apparatuses, raceways, and
conduits. The Nevada State Contractors Board directs applicants to PSI and requires authorization
before scheduling. A PSI C-2 outline retrieved for this publication lists 80 questions, 56 correct to pass,
and 3.5 hours; another PSI contractor instruction document lists 240 minutes. Because these official
documents conflict, confirm the current duration and permitted references in your individual PSI
candidate bulletin.
This independent workbook contains 200 original study questions across the 15 subject areas in the
published C-2 outline. Each question has four options, its correct answer, and an explanation. The
200-question length and questions are not an official PSI examination. The calculation questions
explicitly state assumptions; for real projects, verify current adopted codes, local amendments, and
manufacturer instructions.
Study method: answer before reading the green answer box; review the blue rationale; revisit weak
subjects using the reference list. This booklet emphasizes fundamental reasoning and safety, not
memorization of unverified code-table values.
Independent Exam Preparation Material Page 2
,NEVADA C-2 ELECTRICAL PRACTICE EXAMINATION | 2026
GENERAL ELECTRICAL KNOWLEDGE
QUESTION 001 | A circuit measures 480 V across a 10-ohm resistance. What current flows?
A) 48 A
B) 24 A
C) 72 A
D) 96 A
CORRECT ANSWER: A) 48 A
EXPLANATION & RATIONALE
Ohm’s law gives I = V/R = 480/10 = 48 amperes. Use the specified voltage and resistance; this is a simplified
resistive-circuit calculation. For actual installations, consult the applicable adopted code edition, equipment
instructions, and authority having jurisdiction.
QUESTION 002 | A load draws 30 A at 240 V. What is its apparent power?
A) 14400 VA
B) 7200 VA
C) 3600 VA
D) 10800 VA
CORRECT ANSWER: B) 7200 VA
EXPLANATION & RATIONALE
Apparent power for the stated single-phase values is S = V × I = 240 × 30 = 7200 VA. This does not by itself
establish real power for a reactive load. For actual installations, consult the applicable adopted code edition,
equipment instructions, and authority having jurisdiction.
QUESTION 003 | A 2400-W resistive load operates at 480 V. What current does it draw?
A) 7.5 A
B) 10 A
C) 5 A
D) 2.5 A
CORRECT ANSWER: C) 5 A
EXPLANATION & RATIONALE
For the stated resistive load, I = P/V = 2400/480 = 5 A. Reactive loads require additional power-factor
considerations. For actual installations, consult the applicable adopted code edition, equipment instructions,
and authority having jurisdiction.
Independent Exam Preparation Material Page 3
, NEVADA C-2 ELECTRICAL PRACTICE EXAMINATION | 2026
QUESTION 004 | Two resistors of 2 ohms each are in series. What is their combined
resistance?
A) 2 ohms
B) 6 ohms
C) 8 ohms
D) 4 ohms
CORRECT ANSWER: D) 4 ohms
EXPLANATION & RATIONALE
Series resistances add: Rtotal = 2 + 2 = 4 ohms. This assumes ideal resistors. For actual installations, consult
the applicable adopted code edition, equipment instructions, and authority having jurisdiction.
QUESTION 005 | Two equal 10-ohm resistors are connected in parallel. What is equivalent
resistance?
A) 5 ohms
B) 2.5 ohms
C) 7.5 ohms
D) 10 ohms
CORRECT ANSWER: A) 5 ohms
EXPLANATION & RATIONALE
Two equal resistances in parallel give Rtotal = R/2 = 10/2 = 5 ohms. For actual installations, consult the
applicable adopted code edition, equipment instructions, and authority having jurisdiction.
QUESTION 006 | A circuit measures 208 V across a 8-ohm resistance. What current flows?
A) 52 A
B) 26 A
C) 13 A
D) 39 A
CORRECT ANSWER: B) 26 A
EXPLANATION & RATIONALE
Ohm’s law gives I = V/R = 208/8 = 26 amperes. Use the specified voltage and resistance; this is a simplified
resistive-circuit calculation. For actual installations, consult the applicable adopted code edition, equipment
instructions, and authority having jurisdiction.
Independent Exam Preparation Material Page 4
