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【填空题】
144.机车综合无线通信设备通信模式转换提示标志采用涂有白底色、黑框、写有黑___ 字样的方形板。
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答案
 通信转换
解析
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149.听觉信号,长声为3s,短声为1s,音响问隔为___ J460
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150.发现线路有危及行车安全的不良处所时,应鸣示()信号。
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156进人挂车线后,应严格控制机车速度,执行十、五、三车和度停车规定, 确认___、 防护信号及停留车位置。
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157.活塞的冷却方式有:喷射冷却、振荡冷却、(二种。
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158.辅助机油泵的功能是从油底壳吸人机油,使机油进入机油热交换器进行___ ,然后送到柴油机内。
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159.柴油机启动时油水温度不得低于___。
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160.更换联合调节器工作油时,往联合调节器内加的工作油或清洗用柴油,均须经___ 过滤并经加油口滤网慢慢加入调节器内。
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161.柴油机增压压力不足,将使气缸内空气充量减少,排气温度___,增加燃油消耗。
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162.多缸柴油机曲轴的各曲柄按一定规律、一定角度位置的布置方式称为___。
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163.活塞在进气冲程上止点前42*20曲轴转角时,该缸进气凸轮使___的升程按技术要求为0.38mm,这一数值叫做0.38尺寸。
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164.活塞环与环槽问隙过大时,会造成泵油量增大,使过多的机油窜人___,既浪费机油,又易产生积炭。
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165.喷油器喷油压力调整过高,不仅功率损失大,而且会引起本身工.作条件恶化,影响其使用寿命和工作的()。
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166.在联合调节器的功调滑阀回油油路中,分别设有增载和碱载针阀,其作用是在回油腔内形成定的背压,以增加功率调节过程中的___。
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167.机车喷机油的主要原因一是机油进入气缸,二是___漏油。
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168.柴油机运用中,发现膨胀水箱靠水时,可逐缸停止___,并打开示功阀,检查水箱是否涨水。
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169运行中差示压力计CS动作造成柴油机停机后,若发现加油口盖处冒燃或柴油机抱缸,这时不要育目打开曲轴箱( )盖或启动柴油机。
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171.柴油机曲轴自由端装有___ 、曲轴齿轮、簧片硅抽碱振器和万向轴。
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172.东风4B型机车柴油机最低稳定工作转速()
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173.柴油机除装设水温、润滑、曲轴箱防爆、柴油机超速保护环节, 此外还有曲轴箱防爆阀、盘车机构的___和紧急停车按钮。
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174油压继电器是柴油机机油压力的一种保护装置,它的精构包括 )和执行机构。
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175.柴油机最大供油止挡的作用是限制柴油机的最大供量,以免柴油机___工.作。
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176柴油机工作时,操纵台燃油压力应为___ kPa,
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177柴油机工作时,操纵台增压器机油压力为
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