正确答案: B

B．Ⅰ＋Ⅲ＋Ⅴ

题目：气缸盖冷却侧裂纹一般多产生在（）。Ⅰ.钻孔处；Ⅱ.钻孔之间；Ⅲ.冷却水道筋的根部；Ⅳ.冷却水道底部；Ⅴ.有应力集中处。

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学习资料的答案和解析：

[单选题]废气锅炉窄点较低（）。Ⅰ.可提高废气锅炉的利用率；Ⅱ.废气锅炉应有较大受热面；Ⅲ.废气锅炉废气压力损失较小

Ⅰ+Ⅱ

[单选题]The fourth engineer accompanied by the workers on oil barge measures the oil levels, temperature and （） in the tanks.

water contents

[单选题]The high pressure in fuel injection system of the diesel engine is produced by the （）.

injector pump

[单选题]Vee-type engines have the connecting rods from two cylinders connected to each （） of the crankshaft.

throw

[单选题]Indirect cooling of fuel injector nozzle holders for diesel engines is accomplished primarily by （）.

heat conduction into the water jacket wall