职业技能等级
Railway Signal Worker Vocational Skill Level Certificate
铁路信号工职业技能等级证书
考核信号设备安装、调试、维护与故障处理，适合铁路电务信号岗位人员持证上岗。
Choose your level
Each level focuses on different material and is drawn from the matching difficulty band. Pick "All" to practise the full bank.
All 300 questions free · no sign-up · explained
A sample question · with answer and explanation
ZD6型电动转辙机摩擦连接器的作用是当道岔尖轨与基本轨之间夹有异物时
AI explanation知识点：ZD6电动转辙机摩擦连接器功能。正确项摩擦连接器通过摩擦带打滑限制传递扭矩，尖轨受阻时打滑保护机件。错误项立即断电是遮断器或熔断器作用，非摩擦连接器功能；自动开闭器接点断开是转换到位后的动作，与夹异物保护无关；自动返回原位需人工操作或控制电路反转，摩擦连接器本身不实现返回。
About the Railway Signal Worker Vocational Skill Level Certificate exam
- Issuing body中国国家铁路集团有限公司职业技能鉴定机构
- Choose your level五级 / 四级 / 三级 / 二级 / 一级
- Question bank300 questions online (growing)
- Practice modesSequential practice, mock exam, flash review, mistake drills