正确答案: A
低速机
题目:巨大型船舶对动力装置的重量和尺度没有特别要求,一般采用()柴油机动力装置。
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学习资料的答案和解析:
[单选题]在约定MCR工况下,建议废气管内流速不超过50m/s,实际上为避免压力损失太大,废气流速约为()m/s
35
[单选题]为了防止液压拉伸器密封环的损坏,在()设计了特殊的泄油孔,当活塞的升程超过了其“最大升程”时,液压油会迅速从泄油孔泄放。
活塞的底部
[单选题]舵杆表面的裂纹应采用()检查。
磁力探伤
[单选题]() is the removal of exhaust gases by blowing in fresh air.
Scavenging
[单选题]Before a marine diesel engine is started the cylinders and pistons must be ().
warmed up gradually to appropriate temperature
[单选题]The most important factor that causes the wear of the engine parts is ().
friction