正确答案: C

Ⅲ＋Ⅳ＋Ⅴ

题目：测量曲轴臂距差还要求在（）时进行，以避免在船体变形的情况下测量。Ⅰ.午后；Ⅱ.上午；Ⅲ.清晨；Ⅳ.夜间；Ⅴ.阴雨天。

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学习资料的答案和解析：

[单选题]柴油机冷态即环境温度下测量曲轴臂距差具有测量值（）。Ⅰ.准确；Ⅱ.符合规范；Ⅲ.稳定；Ⅳ.便于操作；Ⅴ.不受温度影响。

Ⅰ＋Ⅲ＋Ⅳ

[单选题]柴油机未装连杆状态下，盘车一周可测得曲轴（）个臂距值。

4

[单选题]新制艉轴铜套的厚度应为（）。

0.03d＋7.5mm

[单选题]螺旋桨桨叶0.4R以外的裂纹可采用（）修理。

完善的工艺焊补

[单选题]During （）, the starting air valves should be closed to prevent the engine from turning.

overhaul

[单选题]In an ordinary diesel engine the fuel injection begins （）

before TDC

[单选题]The indicated power of an engine can be obtained by taking the （）.

B and C

[单选题]When reassembling the bowl of a disk-type centrifuge, the bowl or locking ring is rotated （）.

counterclockwise, due to the bowl rotating clockwise

[单选题]The power output of a turbocharged diesel engine will drop if the cooling water flow through the after-cooler is interrupted because the （）.

air charge density decreases