【单选题】
通过机床的挡块或行程开关决定的坐标位置叫___
A. 机床原点
B. 机床参考点
C. 机床换刀点
D. 刀架参考点
查看试卷，进入试卷练习
微信扫一扫，开始刷题
答案
B
解析
暂无解析
相关试题
【单选题】
数控装置中电池的作用是___
A. 给系统的CPU运算提供能量
B. 在系统断电时，用来保持RAM中的数据
C. 为检测元件提供能量
D. 在突然断电时为数控机床提供动能，使机床能暂时运行几分钟，以便退出刀具
【单选题】
关于产品质量监督抽查的说法，正确的是___
A. 监督抽查的样品，应从企业生产线上随机抽取
B. 监督抽查必须以产品标准作为判定依据
C. 监督抽查所需费用由被抽查企业支付
D. 国家监督抽查的产品，地方不得重复抽查
【单选题】
使用精度为0.01百分表时，长针走一圈和一小格尺寸变动多少？短针走一小格尺寸变动多少？___
A. 长针走一圈是1mm，一小格尺寸变动0.02mm；短针一小格尺寸变动1mm；
B. 长针走一圈是0.2mm，一小格尺寸变动0.001mm；短针一小格尺寸变动0.2mm；
C. 长针走一圈是0.2mm，一小格尺寸变动0.005mm；短针一小格尺寸变动0.2mm；
D. 长针走一圈是1mm，一小格尺寸变动0.01mm；短针一小格尺寸变动1mm。
【单选题】
SDS公司第三方质量管理体系认证标准,针对覆盖汽车行业的标准是指___
A. ISO9001质量管理体系标准
B. ISO/TS16949汽车行业质量管理体系标准
C. OHSAS18000职业健康安全管理体系标准
D. ISO14001环境管理体系标准
【单选题】
临时脱离通知，在 需识别为变化点___
A. 从临时脱离开始，一直到临时脱离结束期间
B. 在临时脱离开始首次执行时
C. 从临时脱离开始和结束时都需执行
D. 仅在临时脱离退出时执行
【单选题】
产品不合格分级的概念应理解为___
A. 根据其严重程度和其对产品适用性影响进行分级
B. 将可能发生的产品质量不合格，根据其严重程度的不同进行分级
C. 将已发生的产品质量不合格，按其质量特性的重要性进行分级
D. 将可能发生的产品质量不合格，根据其对产品适用性影响的不同进行分级
【单选题】
返工是指___
A. 为使不合格产品满足预期用途而对其所采取的措施
B. 对使用或放行不符合规定要求的产品的许可
C. 为使不合格产品符合要求而对其采取的措施
D. 为使不合格产品符合不同于原有的要求而对其等级的改变
【单选题】
“D”标识，在安全存档责任件中是指___
A. 作为影响安全特性过程工艺参数的标记
B. 作为安全特性的标记
C. 作为与安全特性有关的工艺流程卡上的过程标记
D. 作为与安全件和安全特性有关的存档责任文件和资料的标记
【单选题】
中频淬火试样在抛光完成后，需要使用一定浓度的硝酸酒精溶液腐蚀待组织显现后送至检测室检测，所用硝酸酒精溶液的浓度为___
A. 0.01
B. 0.04
C. 0.1
D. 0.5
【单选题】
以下哪种说法是正确的___
A. 工厂所有量具都必须经过法定计量单位校准或检定后，才能投入使用
B. 工厂所有量具都必须经过校准或检定后，才能投入使用
C. 工厂所有量具都无需校准或检定
D. 工厂所有量具在任何情况下，都必须校准或检定
【单选题】
关于粗糙度测量，哪种描述是正确的___
A. 应选择被测面上目测最粗糙的区域进行测量
B. 应选择被测面上目测最光洁的区域进行测量
C. 应选择被测面上目测光洁程度较为适中的区域进行测量
D. 应选择被测面上目测最粗糙，最光洁的区域分别测量，然后计算平均值
【单选题】
关于量具的测量力，哪种做法最正确___
A. 使用尽可能大的测力，同时确保测量部件与被测件之间无间隙
B. 使用尽可能小的测力，同时确保测量部件与被测件之间无间隙
C. 使用既不太大也不太小的测力，同时确保测量部件与被测件之间无间隙
D. 测力由测量人员根据测量条件，自由选择
推荐试题
【单选题】
Our company decided to ___ the contract because a number of the conditions in it had not been met.
A. destroy
B. resist
C. assume
D. cancel
【单选题】
I think it’s time I ___ in a new computer.
A. invested
B. insulted
C. interacted
D. impacted
【单选题】
The jeweler will ____ the inside of the ring with her name.
A. carve
B. engrave
C. cut
D. engross
【单选题】
They are _____ moving their office outside London.
A. considered
B. discussing
C. pondering
D. negotiating
【单选题】
Although she _____ the old pot thoroughly, she could not make it look completely clean.
A. scrubbed
B. washed
C. made
D. screwed
【单选题】
The mistake will remain an indelible ____ on his memory.
A. stain
B. thing
C. issue
D. accident
【单选题】
The wheel ____ through my frozen hand, and the car went right across the road.
A. slipped
B. sipped
C. dashed
D. disappeared
【单选题】
The cupboard was ____ with old fishing tackle.
A. stuffed
B. stocked
C. stored
D. filled
【单选题】
Teaching can be a tiring and ____ job.
A. meaningless
B. stressed
C. rewarded
D. stressful
【单选题】
The building is partly a museum and partly a private ____.
A. place
B. area
C. community
D. residence
【单选题】
They conferred on the best way to ______ business.
A. extend
B. adjust
C. expand
D. adopt
【单选题】
We had a party last month, and it was a lot of fun, so let’s have ____ one this month.
A. another
B. the other B. more D. other
【单选题】
I decided to go to the library as soon as I ____.
A. finish what I did
B. finished what I did
C. would finish what I was doing
D. finished what I was doing
【单选题】
The speaker, ______ for her splendid speeches, was warmly received by the audience.
A. having known
B. being known
C. knowing
D. known
【单选题】
No sooner had we reached the top of the hill ______ we all sat down to rest.
A. when
B. then
C. than
D. until
【单选题】
___ energy under the earth must be released in one form or another, for example, an earthquake.
A. Accumulated
B. Gathered
C. Assembled
D. Collected
【单选题】
Please ___ me for my rudeness. I really do not know the custom here.
A. engaged
B. comfort
C. execute
D. forgive
【单选题】
Sometimes it is very difficult to ___ some of the English words. Even the native speaker cannot help.
A. decrease
B. create
C. define
D. delight
【单选题】
In the wife’s eyes, his ___ to their marriage life is far from perfect.
A. requirement
B. commitment
C. participation
D. reflection
【单选题】
This newspaper often ___ the government’s opinion, not the public opinion.
A. affects
B. reacts
C. reflects
D. recognizes
【单选题】
It is predicted that heavy rains are ___ to flood the area in a few days.
A. frightening
B. threatening
C. scattering
D. warning
【单选题】
I chose to work abroad to improve my career ___.
A. future
B. path
C. prospect
D. expect
【单选题】
Long before I ever went there, Africa was alive in my ___.
A. image
B. imaginary
C. imaginative
D. imagination
【单选题】
The spectacle of the aurora may appear to dazzle and ___ the observer’s eye.
A. enchant
B. charm
C. fascinate
D. draw
【单选题】
Compared with Westerners, the ___ use less butter. They prefer the very healthful peanut oil.
A. foreigners
B. Southerners
C. Northerners
D. Orientals
【单选题】
Within a few days she had become seriously ill, ___ great pain and discomfort.
A. surviving
B. suffering
C. affecting
D. accepting
【单选题】
People of their generation who lived through World War II have ___ memories of confusion and incompetence.
A. vivid
B. strong
C. acute
D. profound
【单选题】
Not a breath of fresh air ___ the long white curtains.
A. blew
B. stirred
C. whirled
D. stung
【单选题】
Figures showed customer complaints had ___ to record levels and profits were falling.
A. added
B. climbed
C. accumulated
D. soared
【单选题】
Thanks for the advice, but this is something I have to ___ out myself.
A. fulfill
B. identify
C. figure
D. claim
【单选题】
A ___ monument has been erected in Tian An Men Square in honor of the people’s heroes.
A. magnificent
B. gorgeous
C. huge
D. marvelous
【单选题】
Vietnam made an official ___ that the meeting be postponed.
A. require
B. requirement
C. request
D. agreement
【单选题】
Luke was allowed to sit directly behind the pilot and ___ with him.
A. converse
B. inverse
C. perverse
D. diverse
