正确答案: D
5年
题目:带有匙形键槽且根部有适当圆角的双螺旋桨轴或艉轴,其检验间隔期规定为()。
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学习资料的答案和解析:
[单选题]在约定MCR工况下,废气锅炉推荐的最大压力损失一般为()MPa。
0.0015
[单选题]排气阀阀面磨损严重时,采用()修复。
堆焊
[单选题]油润滑艉轴密封装置的防蚀衬套选用()制造。
镀铬钢套或不锈钢
[单选题]Fuel is admitted to a diesel engine cylinder through the ().
injector nozzle
[单选题]Scavenging in a four-stroke/cycle diesel engine occurs during the ().
last part of the exhaust stroke, and the first part of the intake stroke
[单选题]When there is a flame failure in an automatically fired auxiliary boiler, the ().
fuel supply is shut off