【单选题】
(32866)发电车中铅蓄电池的充电电流一般不超过( )。(1.0分)___
A. 10A
B. 20A
C. 30A
D. 40A
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答案
C
解析
暂无解析
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(32870)60W/220V的交流白炽灯串联二极管后,接入220V交流电源,其消耗的电功率为( )。(1.0分)___
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(32871)康明斯KTA-19G2柴油机中安装执行器时,最终拧紧螺栓的力矩为( )。(1.0分)___
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(32876)电容器C1、C2串联后接在直流电路中,若C1=3C2,则C1两端的电压是C2两端电压的( )。(1.0分)___
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(32877)在穿心互感器的接线中,一次相线如果在互感器上绕四匝,则互感器的实际变比将是额定变比的( )。(1.0分)___
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(32878)机房的照明灯具的电源采用( )。(1.0分)___
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(32880)关于燃油炉的水管和油管,正确的说法是( )。(1.0分)___
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(32881)每次启动康明斯柴油机前,均需检查柴油机的机油油位,机油油位在( )时,是标准的。(1.0分)___
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(32883)发电车的机组启机前若未将对应柴油机的油阀打开,将会出现( )现象。(1.0分)___
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(32887)康明斯发电车所使用的1FC5356发电机在1560转/分时,其电频率为( )。(1.0分)___
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(32888)MTU12V183型柴油机正常运转后,其机油压力为( )。(1.0分)___
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(32889)发电车的柴油机冷却水温高报警,( )不是其中的原因之一。(1.0分)___
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(32890)当柴油机因为冷却风机故障而引起水温高时,正确的处理方法是( )。(1.0分)___
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(32893)( )可能造成KTA-19G2型柴油机起动马达无法运转。(1.0分)___
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(32897)发电车运行中机组均发生突然停机,如果仅仅是因为是油质差,则处理方法不正确的是( )。(1.0分)___
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(32899)康明斯KTA19-G2型柴油机有怠速无高速,下列原因不可能的是( )。(1.0分)___
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(32901)冬季发电车下油箱柴油凝结时,可采取的办法是( )。(1.0分)___
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