An acceptance control chart has limits that are based on the spec. limits for the product rather than limits which differentiate between random and assignable causes. Under which of the following circumstances should a QC manager consider this type chart
A . When the engineering tolerance on a dimension greatly exceeds the natural dispersion of the manufacturing process
B . When the number of samples outside the current control chart limits become too costly and cumbersome to investigate.
C . When a process is subject to constant but stable tool wear.
D . A and B.
E . A and C
第1题:
A.class
B.tier
C.shares
D.limits
第2题:
重新设置图形空间的命令是limits。
第3题:
定义了abs()函数的头文件是
A.stdlib.h
B.math.h
C.stdio.h
D.limits.h
第4题:
zwcad将图形对象保存成外部块时,可采用()命令。
A.block
B.wblock
C.mblock
D.limits
第5题:
调整界面背景颜色用()命令。
A.OPTIONS
B.ZOOM
C.UNITS
D.LIMITS
第6题:
【单选题】AutoCAD设置绘图范围的命令是(),若选用metric(公制),默认的绘图范围是()
A.LIMITS 12X9
B.LIMITS 420X297
C.LIMITS 297X210
D.ZOOM 420X297