正确答案: D

A+B

题目：船舶有效功率与主机有效功率的差值，是存在着（）所造成的。

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学习资料的答案和解析：

[单选题]燃气动力装置是指（）。

A+B

[单选题]柴油机吊缸时，正确的做法是（）。

停机后，停止燃油和润滑油

[单选题]在船上拆卸下列中、低速柴油机的螺栓时可能使用液压拉伸工具（）。Ⅰ.底脚螺栓；Ⅱ.贯穿螺栓；Ⅲ.气缸盖螺栓；Ⅳ.主轴承螺栓；Ⅴ.连杆螺栓。

Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ＋Ⅴ

[单选题]“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?” asked the oil barge owner （）

with compressed air

[单选题]Adjust （） by means of lead wire.

the clearance of the main bearing

[单选题]In the event of the cylinder starting valve leakage （） would pass into the air pipes and ignite the oil deposited.

hot gase

[单选题]The cylinder and piston must be warmed up （） to a temperature of about 140 degF in standing by engine.

gradually

[单选题]The water in an auxiliary boiler should be tested for chloride content to determine （）.

salt contamination

[单选题]Maximum horsepower of a diesel engine is attained （）.

at rated engine RPM