【单选题】
东风7C型机车加载运行中,牵引发电机电压应不超过___。
A. 600V
B. 770V
C. 880V
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答案
B
解析
暂无解析
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东风7C型机车运用中抱轴瓦温度不得高于___
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柴油机冒蓝烟的主要原因是因为___进入燃烧室参加燃烧而随废气排出造成的。
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东风8B型内燃机车柴油机装车功率为___kw。
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东风8B型机车扫石器距轨面的高度为___mm。
A. 30
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东风8B型内燃机车构架主要由左侧梁、右侧梁、___、前端梁和后端梁等组成全焊接“目”字型结构。
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东风8B型内燃机车转向架采用___支承的橡胶堆旁承。
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东风8B型内燃机车液压系统使柴油机机油、冷却水温度保持在规定的范围内是由___来控制的。
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东风8B型机车撒砂系统的控制方式有___种。
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当低温冷却水温度下降至___℃时,冷却风扇进入调速阶段,直至停转。
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东风8B型内燃机车撒砂阀受___的控制。
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东风8B型内燃机车设计轴重为___t。
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柴油机-发电机组通过___个支承安装于机车上,用于承受柴油机---发电机组的重量和减少柴油机振动对车架的影响。
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【单选题】
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柴油机加载、减载时,一般从空载加载至满负荷,或从满负荷减载至空负荷,其时间不少于___s。
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【单选题】
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A. 1000
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如果柴油机功率不足,拉杆系统又没有故障,供油齿条刻线却拉不出来,一般是___或机车电气故障所致。
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柴油机运转中因燃油系统故障造成柴油机功率不足的原因有___或喷油器发生故障。
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东风11型内燃机车柴油机运行一段时间后由于水温的升高,使膨胀水箱的水位稍有上升约为___左右,这是正常的。
A. 10mm
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东风11型内燃机车共有___个S140型40A直流接触器。
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东风11型机车正向过渡点___。
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C型联合调节器功率调节系统的功用是保持柴油机在给定转速下的___。
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柴油机油压保护机构用途:当柴油机转速达到___时,右纵拉杆上的上盖斜面压住行程开关的触头,油压继电器参与工作。
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东风11型内燃机车当接地继电器线圈中的电流大到___时,DJ动作。
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A. 100kpa
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