正确答案: B

在垂直平面和水平平面内的平行度

题目：连杆大小端轴承孔平台检验时应检查二者的中心线的（）。

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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]艉轴铜套产生（）时，应采用换新铜套。Ⅰ.磨损；Ⅱ.腐蚀；Ⅲ.壁厚过薄；Ⅳ.套合松动；Ⅴ.接缝渗水。

Ⅲ＋Ⅳ＋Ⅴ

[单选题]备车的正确理解是（）。Ⅰ.保证船舶开航；Ⅱ.保证船舶机动航行；Ⅲ.保证船舶动力装置及设备处于随时可启动和运行

Ⅰ+Ⅱ+Ⅲ

[单选题]In order to ensure the safety of the ship and its equipment during UMS operation, certain essential functions （）.

must be provided

[单选题]The crankshaft is of the semi built type, with the journal （） the forged or cast steel crank throws.

being shrunk into

[单选题]The cylinder covers and the liners are bolted together by means of （）.

studs screwed into the cylinder frame

[单选题]The sealing rings are in four parts and pressed together around the piston rods by means of （）.

coil springs

[单选题]When to remove scale from the cooling spaces, acid solution （） in the system can be tested from time to time by putting some on to a piece of lime.

strength

[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