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
题目解答
答案
A. increased compression ratio
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。