题目
The insertion of shims between the foot of a marine type connecting rod and a bearing box would result in __________.A.increased compression ratioB.decreased compression ratioC.increased bearing clearanceD.decreased bearing clearance
The insertion of shims between the foot of a marine type connecting rod and a bearing box would result in __________.A.increased compression ratio
B.decreased compression ratio
C.increased bearing clearance
D.decreased bearing clearance
B.decreased compression ratio
C.increased bearing clearance
D.decreased bearing clearance
题目解答
答案
A
解析
步骤 1:理解问题背景
在船舶发动机中,连接杆的脚部和轴承箱之间插入垫片,会改变它们之间的距离,从而影响压缩比和轴承间隙。
步骤 2:分析垫片对压缩比的影响
插入垫片会增加连接杆脚部和轴承箱之间的距离,从而增加活塞行程,导致压缩比增加。
步骤 3:分析垫片对轴承间隙的影响
插入垫片会增加连接杆脚部和轴承箱之间的距离,从而增加轴承间隙。
在船舶发动机中,连接杆的脚部和轴承箱之间插入垫片,会改变它们之间的距离,从而影响压缩比和轴承间隙。
步骤 2:分析垫片对压缩比的影响
插入垫片会增加连接杆脚部和轴承箱之间的距离,从而增加活塞行程,导致压缩比增加。
步骤 3:分析垫片对轴承间隙的影响
插入垫片会增加连接杆脚部和轴承箱之间的距离,从而增加轴承间隙。