South Carolina Residential Electrical
Contractor Exam Practice Questions
And Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf.
1. What is the current number of multiple-choice questions on the
South Carolina Residential Electrical Contractor Technical
Examination?
A. 40 questions
B. 50 questions
C. 60 questions
D. 75 questions
The South Carolina Residential Builders Commission identifies the
Residential Electrical technical examination as a 60-question multiple-
choice examination. The published passing score for this technical
portion is 73.3 percent.
2. What minimum score is required to pass the South Carolina
Residential Electrical Contractor Technical Examination?
A. 65.0%
B. 70.0%
,C. 73.3%
D. 80.0%
A passing score of 73.3 percent is specified for the Residential Electrical
technical examination. Candidates must therefore achieve the required
percentage rather than merely demonstrating general competency.
3. Which organization administers the South Carolina Residential
Electrical examination?
A. ICC
B. NFPA
C. South Carolina Department of Labor directly
D. PSI Examination Services
The South Carolina Residential Builders Commission uses PSI to
administer the examination. Once an applicant receives examination
eligibility, the applicant schedules the examination through PSI.
4. Before an applicant can schedule the South Carolina Residential
Electrical examination, what must generally occur?
A. The applicant must independently contact PSI before submitting the
license application
B. The applicant must complete three years of electrical school
C. The Commission must approve the application and issue an
examination eligibility letter
D. The applicant must first obtain a commercial electrical contractor
license
,Applications are reviewed for completeness and eligibility before an
Examination Eligibility Letter is issued. The applicant then uses the
information in that letter to schedule the examination with PSI.
5. Which publication is the primary national electrical standard used
for residential electrical installation requirements?
A. International Plumbing Code
B. International Mechanical Code
C. National Electrical Code (NFPA 70)
D. Uniform Mechanical Code
NFPA 70, the National Electrical Code, establishes requirements for
electrical installations, including wiring methods, overcurrent
protection, grounding, equipment, and many residential applications.
6. A 120-volt branch circuit supplies general-purpose receptacles in a
dwelling. Which conductor normally serves as the grounded circuit
conductor?
A. Equipment grounding conductor
B. Neutral conductor
C. Bonding jumper
D. Grounding electrode conductor
The neutral conductor is the grounded circuit conductor in a typical 120-
volt branch circuit. The equipment grounding conductor performs a
different safety function by providing a low-impedance path for fault
current.
, 7. What is the primary purpose of an equipment grounding
conductor?
A. To carry normal load current continuously
B. To increase circuit voltage
C. To reduce the resistance of the branch circuit
D. To provide a low-impedance path for fault current so protective
devices can operate
An equipment grounding conductor normally carries no load current.
During a fault, it provides a conductive path that facilitates operation of
the overcurrent protective device.
8. In a typical modern dwelling, which device is commonly required to
provide ground-fault protection for personnel in locations such as
bathrooms?
A. AFCI breaker only
B. Surge protective device
C. GFCI protection
D. Isolated grounding receptacle
Ground-fault circuit-interrupter protection is intended to protect people
from dangerous electrical shock by detecting an imbalance between
current leaving and returning through the circuit.
9. What is the primary function of a GFCI?
A. Protect conductors from overload only
B. Protect equipment from voltage surges only
Contractor Exam Practice Questions
And Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf.
1. What is the current number of multiple-choice questions on the
South Carolina Residential Electrical Contractor Technical
Examination?
A. 40 questions
B. 50 questions
C. 60 questions
D. 75 questions
The South Carolina Residential Builders Commission identifies the
Residential Electrical technical examination as a 60-question multiple-
choice examination. The published passing score for this technical
portion is 73.3 percent.
2. What minimum score is required to pass the South Carolina
Residential Electrical Contractor Technical Examination?
A. 65.0%
B. 70.0%
,C. 73.3%
D. 80.0%
A passing score of 73.3 percent is specified for the Residential Electrical
technical examination. Candidates must therefore achieve the required
percentage rather than merely demonstrating general competency.
3. Which organization administers the South Carolina Residential
Electrical examination?
A. ICC
B. NFPA
C. South Carolina Department of Labor directly
D. PSI Examination Services
The South Carolina Residential Builders Commission uses PSI to
administer the examination. Once an applicant receives examination
eligibility, the applicant schedules the examination through PSI.
4. Before an applicant can schedule the South Carolina Residential
Electrical examination, what must generally occur?
A. The applicant must independently contact PSI before submitting the
license application
B. The applicant must complete three years of electrical school
C. The Commission must approve the application and issue an
examination eligibility letter
D. The applicant must first obtain a commercial electrical contractor
license
,Applications are reviewed for completeness and eligibility before an
Examination Eligibility Letter is issued. The applicant then uses the
information in that letter to schedule the examination with PSI.
5. Which publication is the primary national electrical standard used
for residential electrical installation requirements?
A. International Plumbing Code
B. International Mechanical Code
C. National Electrical Code (NFPA 70)
D. Uniform Mechanical Code
NFPA 70, the National Electrical Code, establishes requirements for
electrical installations, including wiring methods, overcurrent
protection, grounding, equipment, and many residential applications.
6. A 120-volt branch circuit supplies general-purpose receptacles in a
dwelling. Which conductor normally serves as the grounded circuit
conductor?
A. Equipment grounding conductor
B. Neutral conductor
C. Bonding jumper
D. Grounding electrode conductor
The neutral conductor is the grounded circuit conductor in a typical 120-
volt branch circuit. The equipment grounding conductor performs a
different safety function by providing a low-impedance path for fault
current.
, 7. What is the primary purpose of an equipment grounding
conductor?
A. To carry normal load current continuously
B. To increase circuit voltage
C. To reduce the resistance of the branch circuit
D. To provide a low-impedance path for fault current so protective
devices can operate
An equipment grounding conductor normally carries no load current.
During a fault, it provides a conductive path that facilitates operation of
the overcurrent protective device.
8. In a typical modern dwelling, which device is commonly required to
provide ground-fault protection for personnel in locations such as
bathrooms?
A. AFCI breaker only
B. Surge protective device
C. GFCI protection
D. Isolated grounding receptacle
Ground-fault circuit-interrupter protection is intended to protect people
from dangerous electrical shock by detecting an imbalance between
current leaving and returning through the circuit.
9. What is the primary function of a GFCI?
A. Protect conductors from overload only
B. Protect equipment from voltage surges only
