常年水深超过10m的大河中,采用加厚铅护套深水电缆时,气压标准可按水深每增加10m增加()KPa计算。 ["50","98","70","120"]
当收费亭系统出现故障,短时间内又无法排除故障时,应采取应急措施,以下应急措施不正确的是() ["A、开备用车道","B、发预编码卡","C、卖手工票","D、暂停通行"]
水底电缆单独充气,常年水深在5~10m时,日常保持气压应在()KPa之间。 ["50~70","70~90","100~120","100~180"]
水底电缆单独充气,常年水深在5~10m时,最高充气气压应()KPa。 [">150 ","≤150 ",">200 ","≤200"]
预编码卡预先写入了哪些信息?() ["A、车型信息","B、车牌信息","C、所站信息","D、车道信息"]
什么是档号?