【名词&注释】
可靠性(reliability)、环境温度(ambient temperature)、警告牌(warning board)、填料函式
[单选题]“Stand by an engine” means ()
A. “prepare to stop the engine”
B. “assemble an engine on its bedplate”
C. “make an engine ready for starting”
D. “dismantle an engine&rdquo
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学习资料:
[单选题]可靠性定义中所述及的“规定的条件”,包括()。Ⅰ.环境温度、压力、湿度;Ⅱ.振动;Ⅲ.承受的负荷
A. Ⅰ+Ⅱ
B. Ⅱ+Ⅲ
C. Ⅰ+Ⅲ
D. Ⅰ+Ⅱ+Ⅲ
[单选题]吊缸主机检修时,应当(),以防止伤人和损坏机件。
A. 合上盘车机
B. 脱开盘车机
C. 在主机操纵部位悬挂警告牌
D. 合上盘车机并在主机操纵部位悬挂警告牌
[单选题]填料函式艉轴密封装置要求换新填料安装时应()。Ⅰ.材质不变;Ⅱ.每圈长度恰好对接;Ⅲ.各道填料接口错开;Ⅳ.填料的圈数不变;Ⅴ.必须全部更换。
A. Ⅱ+Ⅲ
B. Ⅰ+Ⅱ+Ⅳ+Ⅴ
C. Ⅲ+Ⅳ+Ⅴ
D. Ⅱ+Ⅲ+Ⅳ
[单选题]The sealing rings are in four parts and pressed together around the piston rods by means of ().
A. nuts
B. bolts
C. coil springs
D. stuffing boxe
[单选题]The minimum speed an engine must attain before ignition can occur depends upon ().
A. the type and size of the engine
B. the condition of the engine
C. ambient temperature
D. all of the above
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