正确答案: B

through an inlet valve

题目：In the suction stroke air is induced into the cylinder （）In the compression stroke the air is compressed.

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学习资料的答案和解析：

[单选题]机舱饱和度是表征机舱利用率的指标，由（）来表示。

B+C

[单选题]低速柴油机排放污染物中，影响废气锅炉烟垢着火的污染物是（）。

排气颗粒排放率

[单选题]气缸盖底面在较高的（）等的恶劣条件下工作。Ⅰ.交变的机械负荷；Ⅱ.热负荷；Ⅲ.燃气腐蚀阀、孔；Ⅳ.冲刷；Ⅴ.冲击。

Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ

[单选题]中国船级社要求营运船舶的曲轴臂距差为（）时，应限期修理。

＞0.25S

[单选题]如果采用（）时，底脚螺栓可以不用紧配螺栓。

环氧垫块

[单选题]For a continuous operation diesel engine, a duplex filter unit would be the best arrangement because （）.

changing filter elements would not interrupt engine operation

[单选题]When reassembling the bowl of a disk-type centrifuge, the bowl or locking ring is rotated （）.

counterclockwise, due to the bowl rotating clockwise

[单选题]A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.

reduce the engine load