Residential wireman test - Study guides, Class notes & Summaries

Conductors with _____ marked on the insulation are NOT approved for use in a wet location. - Answers THHN conductors with THHN insulation are approved for use in dry and damp locations only and conductors with THWN, THHW, and THW insulation are recognized for use in dry and wet locations. Given: A one-family dwelling unit with a demand load of 200 amperes is supplied with a 120/240 volt, single-phase, electrical system from the local utility company. What is the MINIMUM size aluminum THW c...

The National Electrical Code not intended as ________. - Answers design specification or as an instrucion manual The provisions of the national electrical code are considered necessary for ________. - Answers safety What is not covered within the scope of the national electrical code? - Answers installation in underground mines Which chapter of the national electrical code covers communications systems? - Answers chapter 8 The informational annexes of the national electrical code are...

What should the following list does the NEC define as utilization equipment? - Answers Water Heater The nec defines concealed as being what? - Answers Made inaccessible by the structure of the building Electrical wiring installed under canopies or roofed open porches is considered to be installed in what kind of location - Answers Damp Ohm's law is the relationship between - Answers Voltage, current, and resistance. What is the unit of electrical power - Answers Watt When checkin...

The National Electrical Code not intended as ________. - ANSWERSdesign specification or as an instrucion manual The provisions of the national electrical code are considered necessary for ________. - ANSWERSsafety What is not covered within the scope of the national electrical code? - ANSWERSinstallation in underground mines Which chapter of the national electrical code covers communications systems? - ANSWERSchapter 8 The informational annexes of the national electrical code are for...

Residential Wireman Latest Questions and simplified Answers that are 100% correct

Journeyman Wireman Electrical Test Study Guide NEC - Larry Bobo Workbook 1. What is the required input conductor ampacity for a phase converter with a nameplate rating of 56 amperes for full-load single-phase input that supplies variable loads? - Answer: 70 amperes (Reference: Phase Converters, NEC Section 455.6(A)(1)). 2. For a 277/480 volt 3-phase wye service, where should the grounded conductor be run and bonded? - Answer: To each service disconnecting means (Reference: AC systems, gr...