相关试题
【单选题】
(31503)工作接地导线一般用___颜色标识。
【单选题】
(31504)凡是可以在车下组成线束的导线,下线后应穿上线号再按需要扎成线束,并符合下列要求___
A. 线束中导线任意扭曲
B. 每间隔500mm~600mm至少捆扎一次
C. 线束中引出导线的位置应准确,长度适中
D. 穿入线管或线槽的线束,外径面积之和不应超过线管、线槽内孔横截面积的50%
【单选题】
(31505)___是教学大纲要求熟悉和掌握的内容。
A. 知识点
B. 重点
C. 难点
D. 出题点
【单选题】
(31506)___是讲义的主体部分。
A. 教学内容
B. 案例分析
C. 专题讨论
D. 课后思考题
【单选题】
(31507)下面哪项不属于教学设计___。
A. 教学环境
B. 教具
C. 教学内容
D. 实践能力培训
【单选题】
(31508)以下教案和讲义的描述正确的是___。
A. 一般教案篇幅长于讲义;
B. 在内容上,讲义涉及的是组织性项目,教案涉及的是知识性项目;
C. 教案和讲义是决定与被决定的关系;
D. 讲义的思路形成受教学过程的管理逻辑支配,教案的思路形成受教学过程的知识逻辑支配。
【单选题】
(31509)下面哪种不属于教学的基本组织形式___。
A. 课堂教学
B. 现场教学
C. 专题讲座
D. 自学
【单选题】
(31510)教案必须在“四备”的基础上编写,以下哪个不属于“四备”___。
A. 备大纲
B. 备教材
C. 备学生
D. 备讲义
【单选题】
(31511)在带7KA8线圈的康明斯发电车控制电路中,若需分别检测发电车I、II路干线绝缘,只需进行___操作后即可进行检测。
A. 断开24V电源总开关7QFl
B. 断开lKA9、3KA9线圈电路中的保险
C. 断开所有主开关
D. 取下I、II路干线中的保险
【单选题】
(31512)兆欧表有三个接线端,分别标有L、E和G字母,测量电缆的对地绝缘电阻时其屏蔽层应接___。
【单选题】
(31513)使用直读式绝缘检测表,检测客车绝缘是否接地或绝缘是否合格,应将转换开关旋至___。
A. 检测档
B. R×1kΩ档
C. R×l0kΩ档
D. 任意档
【单选题】
(31514)为保障人身安全,在正常情况下,电气设备的安全电压规定为___以下。
A. 24V
B. 36V
C. 48V
D. 110V
【单选题】
(31515)遇有电气火灾,不能使用水或___灭火器。
A. 二氧化碳
B. 干粉
C. 1211
D. 泡沫
【单选题】
(31516)电气设备采用保护接地,还是保护接零主要取决于___。
A. 低压电网的性质
B. 电气设备的额定电压
C. 系统的运行方式
D. 系统的中性点是否接地、低压电网的性质及电气设备的额定电压
【单选题】
(31517)柴油机启机前检查描述正确的是___
A. 柴油机启机前应检查柴油机柴油、机油、冷却水状态。
B. 柴油机启机前应检查柴油机气门间隙。
C. 柴油机启机前应检查柴油机喷油器压力。
D. 柴油机启机前应清洁空气滤清器。
【单选题】
(31518)___人员可独立操作柴油机。
A. 任何
B. 客运
C. 车辆
D. 经柴油机专业培训合格
【单选题】
(31519)以下操作规程的描述正确的是___
A. 应根据操作项目的重要性逐一编写。
B. 应根据操作步骤的顺序逐一编写。
C. 只需编写操作步骤,不需编写操作方式。
D. 专业人员可以不依照操作规程操作设备。
【单选题】
(31520)下列哪项工作不属于发电车乘务员作业范畴___。
A. 出退乘签到。
B. 发电车日常维护保养。
C. 发电车停机前逐辆卸除车厢负载。
D. 定时进入机房巡视检查。
【单选题】
(31521)列车终到后,因特殊情况,需要继续供电时,由有关部门或单位与车辆段或发电车工作人员协商。但不得超过___分钟。
【单选题】
(31522)发电车起机后,发电车乘务员应___,方可向列车供电。
A. 检测列车绝缘正常
B. 电力连接线连挂良好
C. 与空调乘务员办理供电手续
D. 检查发电车燃油充足
【单选题】
(31523)发电车出库质量标准要求冷却水位应在___以上
A. 1/2
B. 2/3
C. 3/4
D. 4/5
【单选题】
(31524)发电车出库质量标准要求24V启动电池电压,在机组启动过程中不得低于___。
A. 24V
B. 22V
C. 20V
D. 18V
【单选题】
(31525)发电车逆功率继电器定期检查每年不少于___。
【单选题】
(31526)发电车冷却间应配备1具___灭火器。
A. 2公斤
B. 4公斤
C. 25公斤
D. 35公斤
【单选题】
(31527)以下说法错误的是___。
A. 发电车内严禁吸烟。
B. 发电车严禁直接与燃煤锅炉取暖车辆连挂。
C. 发电车严禁放置棉纱。
D. 发电车严禁用水冲刷地板。
【单选题】
(31528)发电车烟火报警器___必须进行全功能检查。
A. 每次入库
B. 每月
C. 每季
D. 每半年
【单选题】
(31529)车辆段应设质量检查机构,质量检查机构应___对全部运用列车进行质量检查和鉴定。
【单选题】
(31530)鉴定列车在___内发生险性及以上责任行车事故的,取消鉴定评比资格。
【单选题】
(31531)主管段长和车间主任未按规定在“车统—181”上签字不超过2次的,在运用客车质量鉴定中属于管理部分___问题。
【单选题】
(31532)柴油机正常运转时排气烟色为___。
【单选题】
(31533)下面原因中可能造成发电车KTA-19G2型柴油机油底壳进水的是___。
A. 中冷器破裂
B. 机全滤破裂
C. 水泵叶片变形
D. 油底壳破裂
【单选题】
(31534)康明斯发电车中,若高水温停机保护传感器发生故障时仍需使用该机组时,可采取___的措施强行起机。
A. 直接拆除故障传感器
B. 拆除故障传感器后短接箱中5、7号端子
C. 拆除故障传感器后短接箱中7、9号端子
D. 拆除故障传感器后短接箱中9、11号端子
【单选题】
(31535)车辆发生故障,距离接触网带电部分不足___时,必须待接触网停电并接地后,方可进行处理。
A. 1m
B. 1.5m
C. 2m
D. 2.5m
【单选题】
(31536)较大事故的调查期限为___。
A. 10天
B. 20天
C. 30天
D. 60天
【单选题】
(31537)铁道部、安全监管办的安全监察部门应在事故调查组工作结束后___之内,根据事故报告,制作《铁路交通事故认定书》,经批准后,送达相关单位。
A. 5日
B. 10日
C. 15日
D. 30日
【单选题】
(31538)应急工作不包含以下哪项内容___
A. 对突发事故灾害作出预警
B. 控制事故灾害发生与扩大
C. 开展有效救援
D. 维持正常秩序
【单选题】
(31539)应急预案从功能与目标上分综合预案、专项预案、___、应急救援方案。
A. 突发预案
B. 赔偿预案
C. 现场预案
D. 天气预案
【单选题】
(31540)___是针对具体的事故类别、危险源和应急保障而制定的计划或方案。
A. 综合应急预案
B. 基本应急预案
C. 特别应急预案
D. 专项应急预案
【单选题】
(31541)电气故障查找一般可分为故障调查、___、断电检查、通电检查
A. 外观检查
B. 对比检查
C. 电路分析
D. 试探检查
【单选题】
(31542)___是指采用仪器仪表作为辅助工具对电气线路故障进行判断的检修方法。
A. 检测法
B. 电压法
C. 电流法
D. 电阻法
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______you choose, make sure that it is a good one. ___
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【单选题】
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I'd like to take my picture ________stands a high tower. ___
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A. got out of
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【单选题】
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A. went for
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【单选题】
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【单选题】
I'm afraid it ______ tomorrow, but who knows?___
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【单选题】
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【单选题】
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【单选题】
_____________is one of the five working languages at U.N. , which _______ are very proud of.___
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