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0530课前作业:SPC基本理论知识竞答

Authored by Fengjia Zhang

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0530课前作业:SPC基本理论知识竞答
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10 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

准确度是指所测得的值与“真实值”有多靠近

精确度是指测量系统在多次测量同一标准样或样品的单一特性时,其所获的测量值有多一致,下面图表中那个准确度和精确度最好?(单选题)

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2.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

控制用控制图的作用是(单选题)

及时告警

起到贯彻预防作用

处理生产中的问题

消除不合格品

3.

MULTIPLE SELECT QUESTION

10 mins • 10 pts

下面公式正确的是(多选题)

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4.

MULTIPLE SELECT QUESTION

10 mins • 10 pts

下面Cpk、Ppk、Cpm说法,正确的是(多选题)

Cp只考虑过程的波动,Cpk还体现了过程的中线集中度

Cpm是用相对目标的标准偏差计算的, σ_T 是相对目标的偏差而不是相对均值

Cp是短期过程能力

Pp是长期过程能力

5.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

下面图标正确的是

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6.

MULTIPLE SELECT QUESTION

10 mins • 10 pts

下面公式正确的是

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7.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

SQC(Statistical quality control)是指对于结果(过程或转化单元的输出)的统计和控制, SPC(Statistical process control)是指对于过程或转化单元内参数的统计和控制 

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