Where should lightning arrestors be located?
The correct answer is A: Where the feed lines enter the building. Where lightning arrestors should be located is where the feed lines enter the building. Lightning arrestors must be at the entry point to protect equipment inside. For amateur radio operators, this is critical lightning protection. Understanding this helps ensure proper lightning protection.
Exam Tip
Lightning arrestors location = where feed lines enter building. Think 'L'ightning 'A'rrestors = 'L'ocated 'A't entry. Lightning arrestors must be at entry point to protect equipment inside. Not on antenna, not in series, not at power pole - just at building entry.
Memory Aid
"Lightning arrestors location = where feed lines enter building. Think 'L'ightning 'A'rrestors = 'L'ocated 'A't entry. Lightning arrestors must be at entry point to protect equipment inside. Critical lightning protection location."
Real-World Application
Lightning arrestors: They should be located where feed lines (coax, etc.) enter the building. This protects equipment inside the building - lightning energy is diverted to ground at the entry point. If arrestors are elsewhere, equipment inside isn't protected. Building entry is the location - this is where lightning arrestors should be installed.
Key Concepts
Why Other Options Are Wrong
Option B: Incorrect. Lightning arrestors shouldn't be on antenna opposite feed point - they should be at building entry, not on antenna. Antenna location is wrong.
Option C: Incorrect. Lightning arrestors shouldn't be in series with each ground lead - they should be at feed line entry, not in series. Series connection is wrong.
Option D: Incorrect. Lightning arrestors shouldn't be at closest power pole - they should be at building entry, not power pole. Power pole is wrong.
题目解析
The correct answer is A: Where the feed lines enter the building. Where lightning arrestors should be located is where the feed lines enter the building. Lightning arrestors must be at the entry point to protect equipment inside. For amateur radio operators, this is critical lightning protection. Understanding this helps ensure proper lightning protection.
考试技巧
Lightning arrestors location = where feed lines enter building. Think 'L'ightning 'A'rrestors = 'L'ocated 'A't entry. Lightning arrestors must be at entry point to protect equipment inside. Not on antenna, not in series, not at power pole - just at building entry.
记忆口诀
Lightning arrestors location = where feed lines enter building. Think 'L'ightning 'A'rrestors = 'L'ocated 'A't entry. Lightning arrestors must be at entry point to protect equipment inside. Critical lightning protection location.
实际应用示例
Lightning arrestors: They should be located where feed lines (coax, etc.) enter the building. This protects equipment inside the building - lightning energy is diverted to ground at the entry point. If arrestors are elsewhere, equipment inside isn't protected. Building entry is the location - this is where lightning arrestors should be installed.
错误选项分析
Option B: Incorrect. Lightning arrestors shouldn't be on antenna opposite feed point - they should be at building entry, not on antenna. Antenna location is wrong. Option C: Incorrect. Lightning arrestors shouldn't be in series with each ground lead - they should be at feed line entry, not in series. Series connection is wrong. Option D: Incorrect. Lightning arrestors shouldn't be at closest power pole - they should be at building entry, not power pole. Power pole is wrong.
知识点
Lightning arrestors, Feed lines enter building, Entry point, Lightning protection
Verified Content
Question from official FCC General Class question pool. Explanation reviewed by licensed amateur radio operators.