职业技能等级
Railway Communication Worker Vocational Skill Level Certificate
铁路通信工职业技能等级证书
考核通信线路与设备维护、调试和故障排除，适合铁路通信岗位人员技能评价。
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
铁路通信机械室接地系统中，保护地线与工作地线在接地汇集线上的连接方式是
AI explanation知识点为通信机械室接地规范。正确项对：保护地线与工作地线应分别独立引至接地汇集线，最终单点接地，可避免地电位差干扰。错误项一错在合并后失去独立路径，易引入干扰；错误项二错在串联接地会抬升工作地线电位；错误项三错在分组交替接入会造成多点接地环流。
About the Railway Communication 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