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【判断题】
接触网作业车平台无上升下降操作时总油压表显示无压力可能原因是升降电磁换向阀未通电或损坏
A. 对
B. 错
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A
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相关试题
【判断题】
接触网作业车平台无上升下降操作时总油压表显示有压力的可能原因是平衡阀损坏
A. 对
B. 错
【判断题】
接触网作业车平台无上升下降操作时总油压表显示无压力可能原因是平衡阀卸荷或损坏
A. 对
B. 错
【判断题】
接触网作业车作业平台无回转的可能原因是回转制动带未打开
A. 对
B. 错
【判断题】
接触网作业车作业平台无回转的可能原因是马达或减速机损坏
A. 对
B. 错
【判断题】
接触网作业车随车起重机无动作压力表显示有压力可能原因是执行机构发卡
A. 对
B. 错
【判断题】
接触网作业车作业平台使用手油泵无动作的可能原因是手油泵坏
A. 对
B. 错
【判断题】
发动机冷却泵冷却程度越大越好
A. 对
B. 错
【判断题】
柴油机转速增大,供油量也略有增大
A. 对
B. 错
【判断题】
JZ-7型制动机的操作手柄只允许使用一套,收车后必须及时取下操作手柄并妥善定置保管
A. 对
B. 错
【判断题】
大修周期里程和时间以先到为准,根据作业车状态最多可延长两年或走行2万公里
A. 对
B. 错
【判断题】
平车装载货物须严格落实货物装载加固规定,应能适应300km/h及以上列车交会时产生的气动力,确保货物装载加固质量和全程运输安全
A. 对
B. 错
【判断题】
JZ-7型空气制动机受中继阀的控制,它只能高于列车管的规定压力50~80 kPa,但不会产生自然制动.
A. 对
B. 错
【判断题】
JZ-7型空气制动机在运行中,若用自阀进行减压制动后,需要单缓机车时,只需要将单阀手柄推至单独缓解位,机车制动就会得到缓解.
A. 对
B. 错
【判断题】
铁路机车、车辆的制造材料绝大多数是金属,其中主要是钢铁,在寒冷的冬季,由于气温低,钢铁变脆,极易发生折损和断裂
A. 对
B. 错
【判断题】
入冬前对室外安装的各种压力容器、压力管道要做好防寒保温工作
A. 对
B. 错
【判断题】
任何电器设备未经验电,一律视为有电,不准身体触及
A. 对
B. 错
【判断题】
吊运一切物料都必须由持有司索工上岗证人员进行指挥,散料应用吊篮装置好后才能起吊
A. 对
B. 错
【判断题】
车钩的钩舌在关锁状态时最大为250 mm
A. 对
B. 错
【判断题】
夏秋两季时汽油机机油和柴油机机油可互用
A. 对
B. 错
【判断题】
接触网作业车安全防护备品失效时,禁止使用
A. 对
B. 错
【判断题】
常用制动位是轨道车需减速或停车时较缓和的制动位
A. 对
B. 错
【判断题】
当空压机出现均匀的嗒嗒声时,是由于阀片缺油引起的,只需注油就可消除,或继续使用也不会出现问题
A. 对
B. 错
【判断题】
判断故障时,一般应遵循由简到繁(由表及里)的顺序
A. 对
B. 错
【判断题】
停车状态下按压【调车】键2s退出调车模式;或调用数据后,调车状态下收到允许信号,速度低于40km/h时,允许按压【正常】键,进入正常监控模式
A. 对
B. 错
【判断题】
液力偶合器在正常工作时,泵轮转速总是小于涡轮转速
A. 对
B. 错
【判断题】
液力传动的传动系统主要由液力传动箱、变速器、万向传动装置和车轴齿轮箱等组成
A. 对
B. 错
【判断题】
当微机控制系统换档控制器出现故障时,允许长时间使用油门控制器控制行车应急使车辆回库,回库后应立即查找并排除换档控制器的故障
A. 对
B. 错
【判断题】
机械传动接触网作业车的传动系统主要由离合器、变速器、万向传动装置、换向箱、车轴齿轮箱等组成
A. 对
B. 错
【判断题】
接触网作业车每行驶1000km后,其换向箱应更换润滑油
A. 对
B. 错
【判断题】
PT油泵不需要正时调整
A. 对
B. 错
【判断题】
进行电焊操作时,不需要断开电源
A. 对
B. 错
【判断题】
发动机配气机构的作用是按照内燃机各缸着火次序,使可燃混合气及时燃烧
A. 对
B. 错
【判断题】
接触网作业车每行驶6000km后,其换向箱应更换润滑油
A. 对
B. 错
【判断题】
微机控制系统控制软件的主要功能包括数据采集、发动机转速控制、自动换档控制、安全防护、数据记录及重联控制等功能
A. 对
B. 错
【判断题】
为保证设备安全,交流线路中设有断路器、交流接触器、直流接触器保护用电设备的安全
A. 对
B. 错
【判断题】
变速箱工作开关的功能是控制液力传动箱的工作状态
A. 对
B. 错
【判断题】
车辆的制动梁及下拉杆必须有保安装置
A. 对
B. 错
【判断题】
柴油发动机对喷油泵的基本要求是根据柴油机工作循环的要求,保证一定的供油开始时间和延续时间
A. 对
B. 错
【判断题】
电气化铁路上使用轨道车时不得用水管冲洗车辆
A. 对
B. 错
【判断题】
未按规定检修的接触网作业车可以上线运行
A. 对
B. 错
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