正确答案: B

warmed up gradually to appropriate temperature

题目：Before a marine diesel engine is started the cylinders and pistons must be （）.

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学习资料的答案和解析：

[单选题]F（r）直接反映出故障随（）变化的规律，故称为累积故障的概率。

时间

[单选题]下列（）情况下，必须对活塞运动部件进行校中。

更换气缸套、导板、十字头

[单选题]If the engine does start on air, but combustion does not immediately begin, the cause may not be （）.

turning gear being still o

[单选题]The gas loads on the engine structure are constrained by means of hydraulically preloaded （） which connect the bed plate, frame sections and cylinder jackets into a single unit.

tie rod

[单选题]Prior to lighting off a cold automatically fired auxiliary boiler, you should （）.

check and regulate the water level