【名词&注释】
柴油机气缸套(engine cylinder liner)、实际情况(actual situation)、测量精度高(high measuring accuracy)
[单选题]测量曲轴臂距差时,要求在()情况下进行,以保证测量精度高和与实际情况相符。Ⅰ.柴油机正车运转;Ⅱ.柴油机倒车运转;Ⅲ.装表位置不变;Ⅳ.一次装表;Ⅴ.不更换表。
A. Ⅰ+Ⅲ+Ⅳ
B. Ⅲ+Ⅳ
C. Ⅰ+Ⅳ+Ⅴ
D. Ⅰ+Ⅳ
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[单选题]当柴油机气缸套产生较大拉痕、擦伤、磨台和过度磨损时,应拆下送厂采用()进行修理。Ⅰ.镀铬;Ⅱ.镗缸;Ⅲ.修理尺寸法;Ⅳ.喷焊;Ⅴ.恢复尺寸法。
A. A.Ⅰ+Ⅲ+Ⅳ+Ⅴ
B. B.Ⅰ+Ⅱ+Ⅴ
C. C.Ⅱ+Ⅲ+Ⅴ
D. D.Ⅰ+Ⅱ+Ⅲ
[单选题]中间轴承有()。Ⅰ.上瓦和下瓦D.仅有下瓦;Ⅲ.上下瓦可以互换
A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ+Ⅲ
D. Ⅰ或Ⅲ
[单选题]() of the A-frames there is a strong cast iron frame called the scavenging air box.
A. At the top
B. At the bottom
C. In the top
D. In the bottom
[单选题]Fuel injection systems meter fuel, atomize fuel, and ().
A. create turbulence in the combustion chamber
B. aid in completing cylinder scavenging
C. inject fuel at the proper time
D. minimize fuel penetration into the cylinder
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