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【单选题】

互相啮合的两齿轮,必须相等的参数是( )。

A.
分度圆直径
B.
模数
C.
齿顶圆直径
D.
齿数
题目标签:齿轮啮合参数
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参考答案:
参考解析:
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举一反三

【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...

A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.

【单选题】一级啮合传动且转向一致的是( )传动。

A.
圆锥齿轮
B.
内啮合齿轮
C.
外啮合齿轮
D.
蜗轮蜗杆

【单选题】锥齿轮啮合质量的检验,应包括( )的检验。

A.
侧隙和接触斑点
B.
侧隙和圆跳动
C.
接触斑点和圆跳动
D.
侧隙、接触斑点和圆跳动

【多选题】开式齿轮的主要失效形式是__。

A.
轮齿折断
B.
齿面磨损
C.
齿面胶合
D.
齿面点蚀

【单选题】晶体管中的“β”参数是()。

A.
电压放大系数
B.
集电极最大功耗
C.
电流放大系数
D.
功率放大系数
相关题目:
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【单选题】齿轮的润滑主要靠()
A.
边界油膜
B.
刚性油膜
C.
弹性油膜
【单选题】一级啮合传动且转向一致的是( )传动。
A.
圆锥齿轮
B.
内啮合齿轮
C.
外啮合齿轮
D.
蜗轮蜗杆
【单选题】锥齿轮啮合质量的检验,应包括( )的检验。
A.
侧隙和接触斑点
B.
侧隙和圆跳动
C.
接触斑点和圆跳动
D.
侧隙、接触斑点和圆跳动
【多选题】开式齿轮的主要失效形式是__。
A.
轮齿折断
B.
齿面磨损
C.
齿面胶合
D.
齿面点蚀
【单选题】晶体管中的“β”参数是()。
A.
电压放大系数
B.
集电极最大功耗
C.
电流放大系数
D.
功率放大系数