Introduction to the National Electrical
Code Exam Questions & Answers
(Grade A+)
When installing NM cable into a single gang box with an opening of
4" by 2-1/8", what is the
MINIMUM length of wire required outside the opening according to
NEC Article 300 ? -
correct answer ✅6
According to NEC® Article 300, how far back from the edge must a
hole be drilled in a stud if a
nail plate is not being used? -
correct answer ✅• 1.25"
What does NEC Article 100 contain? -
correct answer ✅• a list of common definitions
What types of rules are contained in the NEC®? -
correct answer ✅• mandatory and permissive
Given a 4" square box is 2-1/8" deep, what is the volume according
to the NEC Article 314? -
correct answer ✅• 34.0 in3
Code Exam Questions & Answers
(Grade A+)
When installing NM cable into a single gang box with an opening of
4" by 2-1/8", what is the
MINIMUM length of wire required outside the opening according to
NEC Article 300 ? -
correct answer ✅6
According to NEC® Article 300, how far back from the edge must a
hole be drilled in a stud if a
nail plate is not being used? -
correct answer ✅• 1.25"
What does NEC Article 100 contain? -
correct answer ✅• a list of common definitions
What types of rules are contained in the NEC®? -
correct answer ✅• mandatory and permissive
Given a 4" square box is 2-1/8" deep, what is the volume according
to the NEC Article 314? -
correct answer ✅• 34.0 in3
