NCCER Electrical Lv 1 MODULE 9 Conductors and Cables Exam 2025 Questions & Answers with 100% Correct Answers | Verified

The slandered system of wire sizes in the United Stated is known as the _______. - American Wire Gauge (AWG) system Wire sizes of No._ or larger are shown only as stranded. - No.6 The purpose of stranding is to increase ________. - The Flexibility of the wire A circular mil is a circle that has a diameter of ______. - 1 mil A mil is ____. - 0.001 inch Aluminum conductors have a _______. - Higher resistance The conductivity of aluminum is approximately ______ that of copper. - 2/3 The grounding conductor may be _____. - bare, green, or green with a yellow stripe Type NM and Type NMC is widely used for ______ - branch circuits and feeders in residential and commercial systems. What is Romex Cable? - Nonmetallic sheathed cable consists of two or more plastic-insulated conductors and ground wire surrounded by a moisture resistant plastic jacket. Can be used in wood stud residential buildings and buildings not exceeding three stories (as long as it is used and protected with wood studs). If a conductor has a low resistance, it _______. - has a high conductivity