正确答案: D
无法预测
题目:在偶然故障期内,故障是否发生,是()。
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学习资料的答案和解析:
[单选题]MAN-B&W公司推出的标准废气锅炉系统,主要特点是废气锅炉为单压蒸汽系统;产生饱和蒸汽供加热之需;废气锅炉与燃油辅助锅炉之间有循环水泵并共用一个汽鼓,对其评价可选为()。
具有明显的简单性和低投资成本,又完全满足船舶加热所需蒸汽量的要求
[单选题]气缸套的内径增量ΔD=()(D为名义直径)。
Dmax-D
[单选题]大、中型船舶的轴系各中间轴法兰采用圆柱形螺栓连接时,其中紧配螺栓数应不少于螺栓总数的()。
50%
[单选题]() supplies pilot air to control the cylinder air start valves.
An air distributor
[单选题]In a naturally aspirated diesel engine, the volume of air intake is directly related to engine ().
valve size
[单选题]Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the ().
heat exchanger
[单选题]The amount of fuel injected in a particular time, or degree, of crankshaft rotation is termed ().
rate of injection
[单选题]The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of().
a vibration damper