Residential Wireman Electrical Exam #4 Already Solved 100%

When a single branch-circuit with an equipment grounding conductor is supplying a detached garage from a house, what, if any, additional grounding electrode(s) is/are required at the garage? a) A ground rod and underground metal water pipe. b) A metal underground water pipe only. c) A metal underground water pipe and building steel, if available. d) No additional electrodes are required. - Answers D: No additional electrodes are required. Ref: 250.32(A), Ex. The point of attachment of a service drop to a residence where the voltage is 120 volts to ground is required to be at LEAST _____ above grade. a) 8 feet b) 10 feet c) 12 feet d) 15 feet - Answers B: 10 feet Ref: 230.26 The branch-circuit overcurrent protection device shall be permitted to serve as the disconnecting means for stationary motors rated NOT greater than _____ horsepower. a) 2 b) 1 c) 1⁄ 2 d) 1⁄ 8 - Answers D: 1⁄ 8 Ref: 430.109(B) When installing an overhead service using a rigid metal conduit (RMC) mast for the support of the service-drop conductors, the mast shall be of adequate strength or be _____ to withstand safely the strain imposed by the service drop. a) at least 2 inches in diameter b) a minimum of 3 inches in diameter c) supported by braces or guys d) less than 4 feet in length - Answers C: supported by braces or guys Ref: 230.28 When wall switches are installed in the same room with a spa or hot tub, the MINIMUM distance from the switches to the inside wall of the hot tub or spa shall be _____. a) 5 feet b) 10 feet c) 15 feet d) 18 feet - Answers A: 5 feet Ref: 680.43(C) All 15- and 20-ampere, single-phase, 125-volt receptacle outlets located at LEAST _____ from the inside walls of a swimming pool shall be provided with GFCI protection. a) 10 feet b) 15 feet c) 20 feet d) 25 feet - Answers C: 20 feet Ref: 680.22(A)(4) A luminaire shall be supported independently of the outlet box when it weighs more than _____ pounds, unless the outlet box is listed for the weight to be supported. a) 6 b) 25 c) 35 d) 50 - Answers D: 50 Ref: 314.27(B) Of the following listed connectors, which type is prohibited for connection of a grounding conductor to enclosures? a) sheet metal screws b) pressure connectors c) clamps d) lugs - Answers A: sheet metal screws Ref: 250.8