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| Questão | Responda |
| A(n) ___ is a subatomic particle that has a positive electrical charge of one unit | Proton |
| ___ current is current that reverses its direction of flow at regular intervals. | Alternating |
| Current is measured in ___. | Amperes |
| ___ is the amount of electrical pressure that causes electrons to move in a circuit. | Voltage |
| T or F Three-phase circuits do not always require a neutral wire. | True |
| T or F The larger the AWG number, the larger the diameter of the wire. | False |
| T or F All points in a DC circuit have polarity. | True |
| T or F in a step-up transformer, the secondary coil has more turns of wire then the primary coil. | True |
| A(n) ___ is a device that automatically opens a circuit to prevent damage from a high_current condition. | OCPD |
| A(n) ___ is the conducting part of a switch that operates with another conducting part to complete (close) or break (open) circuit. | Contact |
| A ___ is an OCPD with a fusible link that melts and opens the circuit when an overload condition or short circuit occurs. | Fuse |
| Contact fails when they ___. | Do not open/ Do not close/ Offer resistance to current flow |
| A(n) ___ is an electrical switch that is actuated by a separate circuit. | Relay |
| T or F All lamp ballasts produce some noise. | True |
| T or F Overheating is the most common cause of motor failure. | True |
| A(n) ___circuit is a circuit having an incomplete path, which prevents current flow. | Open circuit |
| ___ is the opposition to the flow of electrons. | Resistance |
| A(n) ___ switch is a switch that is operated by a person. | Manuel |
| A(n) ___ drawing contains building information in the form of floor plans, elevation views, section drawings, and detail drawings. | Architectural |
| A(n) ___ is a material that has little resistance and permits electrons to move through it easily. | Conductor |
| A(n) ___ is the smallest building block of matter that cannot be divided into a smaller unit without changing the basic character. | Attom |
| A(n) ___ is a subatomic particle that has a negative electrical charge of unit. | Electron |
| ___ is the flow of electrons through a conductor. | Current |
| ___ is the positive or negative state of an object. | Polarity |
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