【单选题】
(71662)BSP客车蓄电池充电机电路控制板上电位器RP3的作用是( )。[313120211](1.0分)___
A. 调整输出电流反馈大小
B. 调整电流给定
C. 调节输出电压大小
D. 调节温度补偿电压反馈度
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答案
B
解析
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(71663)BSP客车AC 380 V供电线路中如果闭合空气断路器Q201，得电的是( )。[312120205](1.0分)___
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(71665)BSP客车DC 48 V应急负载供电线路中闭合空气断路器Q701，( )得电。[321120205](1.0分)___
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(71666)BSP客车一般直流负载和应急负载的电压为( )。[312120306](1.0分)___
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(71668).BSP客车充电机无充电电流的原因是( )。[312110204](1.0分)___
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(71670)BSP客车充电机在使用时应注意：在车辆整备长期放置不用时，尽量每隔( )给蓄电池充一次电，并注意将蓄电池箱内的断路器断开。[312120304](1.0分)___
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(71671)TCL-12型开水炉控制箱上工作指示灯连续闪烁两次表明( )。[313110204](1.0分)___
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(71672)电开水炉进水电磁阀关闭不严不会造成( )。[312110204](1.0分)___
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(71674)快达KD-3型电开水炉的3号电极的作用是( )。[312110205](1.0分)___
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【单选题】
(71675)TCL-12型开水炉工作指示灯亮但不加热有可能由( )原因造成。[312120404](1.0分)___
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(71683)KZS/M-Ⅰ型轴温报警器在客车配电箱接线端子排上的接线1～8应接( )。[322120228](1.0分)___
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(71684)KZS/M-Ⅰ型轴温报警器在客车配电箱接线端子排上的接线9应接( )。[321120228](1.0分)___
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(71685)DR50-16CT2型全自动电开水炉整机绝缘电阻为( )。[321120302] (1.0分)___
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(71686)TCL-12型电开水炉整机绝缘电阻为( )。[322120202](1.0分)___
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(71687)DR50-16CT2型全自动电开水炉“沸腾”灯不亮，开水炉不煮水的原因可能是( )。[322210204](1.0分)___
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(71688)TCL-12型电开水炉出水温度低，排气管溢水多的原因可能是( )。[322120204](1.0分)___
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(71689)KSQ-Ⅵ型电开水炉在平衡水箱上部设有( )水位探头，用以探测加热腔水位变化，从而进行加热控制、缺水报警和电磁阀进水控制。[321110511](1.0分)___
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(71691)KSQ-Ⅵ型电开水炉在平衡水箱上部设有( )水位探头，用以探测加热腔水位变化，从而进行加热控制、缺水报警和电磁阀进水控制。[321110511](1.0分)___
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(71692)TCL-12型电开水炉主回路三相交流电源经断路器、熔断器进入电控箱，再经三相整流桥转变成( )左右直流电。[312120213](1.0分)___
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(71693)KZS/M-Ⅰ型轴温数据监测记录仪的记录间隔时间为( )。[322110214](1.0分)___
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(71694)KZS/M-Ⅰ型轴温数据监测记录仪可记录( )组轴温数据和1 034组报警数据。[323110214](1.0分)___
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(71695)将整块的金属导体放于交变磁场中，将在金属块内产生闭合的旋涡状的感应电流，称之为( )。[222110206](1.0分)___
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(71696)KZS/M-Ⅰ型轴报器当某一车厢某一轴位的轴温超过环温40 ℃，或轴温达到( )时，全列车所有仪器都报警并显示超温的车厢号、轴位和轴温，蜂鸣器鸣叫且超温轴的轴温数据和报警指示灯闪烁。[321110214](1.0分)___
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(71697)KZS/M-Ⅰ型集中轴温报警器对车体通信线路的基本要求：用专用线或播音线作通信线，整列车二根线之间的电阻应( )，否则，会对各KZS/M-Ⅰ通信产生不良影响。[221110214](1.0分)___
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(71699)BSP客车GERKEN接地装置的主要功能是提供( )与车轴之间的接地电流回路。[321110223](1.0分)___
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(71700)DR50-16CT2型电开水炉工作时，若冷水箱水位低于( )电极，电磁阀自动通电进水。[321110205](1.0分)___
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【单选题】
(71701)SWKP AS 20C防滑器系统的速度传感器与齿轮顶径向的间隙为( )。[322110202](1.0分)___
A. 1.0 mm±0.2 mm
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【单选题】
(71702)SWKP AS 20R防滑器系统排放电磁阀由内部电源( )额定电压控制。[322110505](1.0分)___
A. 24 V
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