California CSLB C10 Electrical Exam EXAM Questions and Answers (Verified Answers) (Latest Update 2026/2027) UPDATE!! Calfornia C10 Electrical Exam

California CSLB C10 Electrical Exam EXAM Questions and Answers (Verified Answers) (Latest Update 2026/2027) UPDATE!! Calfornia C10 Electrical Exam What is the minimum size copper equipment grounding conductor for a 1600 ampere overcurrent device? - ANSWER -4/0 How many receptacles are required in a residential garage? - ANSWER -1 When are you required to guard or install PV source or output circuits? - ANSWER -Greater than 30 volts If a service conductor is over 300V but less than 600V, what is the minimum clearance of that service conductor if it runs in residential and commercial areas that are not subject to traffic? - ANSWER -15' Direct burial of cable or conductors requires a depth of ____ inches if installed under streets, highways, roads alleys driveways or parking lots - ANSWER -24" Refer to diagram. Service equipment that is rated 600 volts or less requires minimum working space width of: - ANSWER -2.5' What consideration must an electrician take when installing photovoltaic raceways? - ANSWER -UV resistance, Chemical resistance, and Fire resistance If you have a conductor above a swimming pool that has under 750 volts, then what kind of clearance is necessary between the water and conductor? - ANSWER -22.5' What is the minimum distance that grounding electrodes should be spaced? - ANSWER -6' What is the minimum depth a cable or conductor can be direct-buried? - ANSWER -18' Lead-in conductors from an antenna to a building should not be crossed with power conductors, however if the power conductor is 250 volts or less the what is the minimum clearance allowed? - ANSWER -12" Which of the following conduit raceways are used in commercial or industrial applications due to its resistance against mechanical damage? - ANSWER -GRC stands for Galvanized rigid conduit. A raceway that is 24 inches or less in length can be filled to _____ of its total cross-sectional area - ANSWER -60% Mnemonic device for remembering inductance and capcitance - ANSWER -ELI the ICE man Which of the following causes an "open ground" electrical problem? - ANSWER -Non-grounded receptacle was substituted for a grounded receptacle A ___________ is any circuit that controls another circuit through a relay. - ANSWER -Remote Control Circuit Your receptacle tester reads "open neutral," what is the most common location of the problem? - ANSWER -The receptacle upstream has a disconnected neutral What type of receptacle problem exists if the electrician installs the green wire instead of the black wire and vice-versa? - ANSWER -Hot and ground reversed Which of the following problems signifies that the receptacle is not working - ANSWER -Open Hot Min #receptacles in a garage - ANSWER -1 Mobile home service equipment shall be line of sight and no more than ____ from the exterior wall of the home - ANSWER -30' If a service conductor is over 300V but less than 600V, what is the minimum clearance of that service conductor if it runs in residential and commercial areas that are not subject to traffic? - ANSWER -15'