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单选题
The lower end of each piston rod is reduced in diameter to fit a bore in the （）, this being secured to the piston rod by a nut.
A
piston gudgeon pin
B
piston skirt
C
cross-head
D
cross-head pin
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单选题（） is fully floating in both connecting rod small end and the piston skirt.A
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单选题The lower end of each piston rod is reduced in diameter to fit a bore in （）, this being secured to the piston rod by a nut.A
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考题
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考题
单选题Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?（）A
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考题
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