1) 1. Which component is primarily designed to automatically stop the flow of electricity when an overload or short circuit occurs? a) A. Convenience Outlet b) B. Lamp Holder c) C. Circuit Breaker d) D. Switch 2) 2. What is the main function of a switch in a circuit? circuit? a) A. To convert electrical energy to light. b) B. To provide a path for grounding. c) C. To manually open or close a circuit. d) D. To protect the circuit from high voltage. 3) 3. Which type of wire is typically used for permanent wiring installations inside walls and ceilings? a) A. Extension cord b) B. Solid wire c) C. Stranded wire d) D. Speaker wire 4) 4. If the lights in a house keep flickering, which component is the least likely to be the cause of the problem? a) A.Loose switch connection b) B. Defective lamp holder c) C. Properly rated circuit breaker d) D. Small or undersized wire 5) 5. A Grade 8 student is designing a circuit for a 15-amp load. If they mistakenly install a 30-amp circuit breaker, what is the most dangerous consequence? a) A. The lights will be too bright. b) B. The circuit will trip too frequently. c) C. The wires may overheat and cause a fire before the breaker trips. d) D. The voltage will drop significantly.

Evaluation

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？