Under what circumstances is it safe to climb a tower without a helper or observer?
The correct answer is D: Never. It is never safe to climb a tower without a helper or observer. Tower climbing is extremely dangerous, and a helper/observer is essential for safety. The observer can call for help if something goes wrong, assist with equipment, and provide a second set of eyes for safety. For amateur radio operators, this is a critical safety rule. Even experienced climbers should never climb alone. Understanding this helps prevent serious accidents.
Exam Tip
Tower climbing = never without helper. Think 'N'ever 'A'lone = 'N'o 'A'ccidents. Tower climbing is always dangerous - helper/observer is always required. Not about work type or height - always required.
Memory Aid
"Tower climbing = never without helper. Think 'N'ever 'A'lone. Helper/observer is always required for safety and emergency response. Not about work type, height, or experience - always required."
Real-World Application
You need to adjust an antenna at 15 feet. Even though it's not very high and you're not doing electrical work, you still need a helper on the ground. If you fall, get stuck, or have a medical emergency, the helper can call for help and assist. Tower climbing is never safe alone, regardless of circumstances.
Key Concepts
Why Other Options Are Wrong
Option A: Incorrect. Electrical work or not, you still need a helper. The helper isn't just for electrical safety - they're for overall safety and emergency response.
Option B: Incorrect. Mechanical work or not, you still need a helper. Safety requires an observer regardless of work type.
Option C: Incorrect. Height doesn't matter - even 20 feet can be fatal if you fall. You always need a helper, regardless of height.
题目解析
The correct answer is D: Never. It is never safe to climb a tower without a helper or observer. Tower climbing is extremely dangerous, and a helper/observer is essential for safety. The observer can call for help if something goes wrong, assist with equipment, and provide a second set of eyes for safety. For amateur radio operators, this is a critical safety rule. Even experienced climbers should never climb alone. Understanding this helps prevent serious accidents.
考试技巧
Tower climbing = never without helper. Think 'N'ever 'A'lone = 'N'o 'A'ccidents. Tower climbing is always dangerous - helper/observer is always required. Not about work type or height - always required.
记忆口诀
Tower climbing = never without helper. Think 'N'ever 'A'lone. Helper/observer is always required for safety and emergency response. Not about work type, height, or experience - always required.
实际应用示例
You need to adjust an antenna at 15 feet. Even though it's not very high and you're not doing electrical work, you still need a helper on the ground. If you fall, get stuck, or have a medical emergency, the helper can call for help and assist. Tower climbing is never safe alone, regardless of circumstances.
错误选项分析
Option A: Incorrect. Electrical work or not, you still need a helper. The helper isn't just for electrical safety - they're for overall safety and emergency response. Option B: Incorrect. Mechanical work or not, you still need a helper. Safety requires an observer regardless of work type. Option C: Incorrect. Height doesn't matter - even 20 feet can be fatal if you fall. You always need a helper, regardless of height.
知识点
Tower climbing safety, Helper/observer, Tower safety, Safety requirements
Verified Content
Question from official FCC Technician Class question pool. Explanation reviewed by licensed amateur radio operators.