Cracking of a diesel piston crown can result from（）
- AExcessive piston to liner clearance
- BThe underside of the piston crown being excessively dirty lowering the rate of heat transfer
- CFaulty nozzle spray
- DAll of the above
问题
Cracking of a diesel piston crown can
参考解析：
分类：船舶电气与船舶安全题库
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