TREC Home Inspector National Exam – Absolutes Questions and Answers

15-amp fuse - Answer- #14 copper; #12 aluminum 20-amp fuse - Answer- #12 copper; #10 aluminum 25-amp fuse - Answer- #10 copper; #10 aluminum 30-amp fuse - Answer- #10 copper; #8 aluminum 40-amp fuse - Answer- #8 copper; #6 aluminum 50-amp fuse - Answer- #6 copper; #4 aluminum 60-amp fuse - Answer- #6 copper; #4 aluminum (#3 state) 100-amp service entrance - Answer- #4 copper; #2 aluminum 125-amp service entrance - Answer- #2 copper; #1/0 (#0) aluminum 150-amp service entrance - Answer- #1 copper; #2/0 (#00) aluminum 200-amp service entrance - Answer- #2/0 (#00) copper; #4/0 (#0000) aluminum water heater minimum breaker size: - Answer- 25-amp dryer minimum breaker size: - Answer- 30-amp electric range minimum breaker size: - Answer- 40-amp What is the "safe surge" formula? - Answer- watts ÷ volts × 1.25 = minimum breaker size (or next size up) overhead service clearance over a walkway: - Answer- 10' overhead service clearance over a driveway: - Answer- 12' overhead service clearance over the ground: - Answer- 12' overhead service clearance over the street: - Answer- 18' overhead service clearance over a pool: - Ans