Electrical Wiring Terms Review Questions with Complete Solutions Latest Update

Electrical Wiring Terms Review Questions with Complete Solutions Latest Update Ampacity - Answers The current-carrying capacity of conductors or equipment, expressed in amperes. Amperage - Answers Unit of measure denoting how much current a conductor is carrying. Represented by the letter "I" for intensity of current flow. Appliances - Answers Any equipment made for a specific purpose that uses electricity to create light, heat, mechanical motion, etc. Cable - Answers An insulated electrical conductor, often in strands, or a combination of electrical conductors insulated from one another. Circuit - Answers The complete path of an electric current including the generating apparatus, intervening resistors, capacitors, etc. any well-definied segment of a complete circuit. Commercial - Answers Of or pertaining to a building having to do with commerce. Conductor - Answers Anything that passes electricity from one point the another. Electrical wires and power lines are conductors. Conduit - Answers A tube or trough for electric wires or cables. Continuity - Answers Formed by a complete circuit of properly connected grounding conductors. Cord - Answers A small, flexible, insulated cable. Current - Answers The movement or flow of electricity; the speed at which such flow moves. Measured in Amperes (Amps) Fixed Appliance - Answers An appliance such as a dishwasher that's fastened at a specific location. Grounded - Answers Connected to the earth, or to something like a water pipe that conducts electricity to the earth. Ground-fault - Answers When something or someone provides an unintentional path between a source of electrical current and the ground. This can happen if you touch a faulty electrical appliance, and it can cause electrocution. Ground-faults can also cause fires. Insulation - Answers The act of separating a conductor of electricity, heat or sound from other conducting bodies by means of something that will not conduct electricity, heat or sound. Kilowatt - Answers One thousand Watts Residential - Answers Or of pertaining to a building used as a home. Standard - Answers Specific requirements as established by an authority, law, rule, custom, etc.; something set up as a rule for measuring or as a model to be followed. Transformer - Answers Changes the levels of voltage and current, but does not change power. Higher voltages result in lower current, and lower voltages result in higher current. Voltage - Answers A unit of measure denoting the force or pressure that moves current through a conductor: represented by the letter "E" for electro-motive force. Wattage - Answers A unit of measure denoting amount of usable power. Represented by the letter "P" for "power". What are two common materials used for conductors? - Answers Copper and Aluminum Amperage measures how much ___ a conductor is carrying. - Answers Current ___ are used to handle heavy loads. - Answers Large Gauge Wires The National Electrical Code requires the use of certain colors for the insulation on conductors depending on their purpose. - Answers True Why are aluminum conductors not recommended for residential use? - Answers Low resistance to corrosion, oxidizes when contacting other metals. Bonding - Answers A mechanical connection between the parts of the electrical system to ensure that the grounding system is electrically continuous. Electrode - Answers A conductor used to establish electrical contact with a nonmetallic part of a circuit. Grounding electrode - Answers A grounding object that is in contact with the earth. Neutral Wire - Answers Neutral is a circuit conductor that may carry current in normal operation, which is connected to ground (or earth) only at the main electrical panel. In a polyphase or three-wire (single-phase) AC system, the neutral conductor is intended to have similar voltages to each of the other circuit conductors. Potential - Answers The difference in voltage: degree of electrification with reference to a standard. Resistance - Answers The opposition offered by a body to the passage through it of a steady electrical current. Service Disconnect - Answers A way of disconnecting the building from electrical power. The service disconnect could be a circuit breaker in the main panel, a separate switch or a fuse and it could be placed on the inside or outside of the dwelling.