高级试卷1
化工操作工(高级)模拟试卷1(题后含答案及解析)
化工操作工（高级）模拟试卷1(题后含答案及解析) 题型有：1. 单项选择题 2. 判断题请判断下列各题正误。
单项选择题下列各题的备选答案中，只有一个是符合题意的。
1．某设备进、出口测压仪表中的读数分别为p1（表压）=1200mmHg和p2（真空度）=700mmHg，当地大气压为750 mmHg，则两处的绝对压强差为( )mmHg。
A．500B．1250C．1150D．1900正确答案：D2．能自动间歇排除冷凝液并阻止蒸汽排出的是( )。
A．安全阀B．减压阀C．止回阀D．疏水阀正确答案：D3．通风机日常维护保养要求做到( )。
A．保持轴承润滑良好，温度不超过65℃B．保持冷却水畅通，出水温度不超过35℃C．注意风机有无杂音、振动、地脚螺栓和紧固件是否松动，保持设备清洁，零部件齐全D．以上三种要求正确答案：D4．在重力场中，微小颗粒的沉降速度与( )无关。
A．粒子的几何形状B．粒子的尺寸大小C．流体与粒子的密度D．流体的速度正确答案：D5．为减少园形管导热损失，采用包覆三种保温材料a、b、c，若三层保温材料厚度相同，导热系数λa>λb>λc，则包覆的的顺序从内到外依次为( )。
A．a、b、cB．b、a、cC．c、a、bD．c 、b、a正确答案：D6．某单程列管式换热器，水走管程呈湍流流动，为满足扩大生产需要，保持水的进口温度不变的条件下，将用水量增大一倍，则水的对流传热膜系数为改变前的( )。
A．1.149倍B．1.74倍C．2倍D．不变正确答案：B7．工业生产中的蒸发通常是( )。
A．自然蒸发B．沸腾蒸发C．自然真空蒸发D．不确定正确答案：B8．连续精馏中，精馏段操作线随( )而变。
A．回流比B．进料热状态C．残液组成D．进料组成正确答案：A9．有关精馏操作的叙述错误的是( )。
A．精馏的实质是多级蒸馏B．精馏装置的主要设备有：精馏塔、再沸器、冷凝器、回流罐和输送设备等C．精馏塔以进料板为界，上部为精馏段，下部为提馏段D．精馏是利用各组分密度不同，分离互溶液体混合物的单元操作正确答案：D10．在填料塔中，低浓度难溶气体逆流吸收时，若其它条件不变，但入口气量增加，则出口气体组成将( )。
化学检验工高级理论知识试卷一
化学检验工高级理论知识试卷一一、 单项选择。
1、可以用碱标准溶液直接滴定的含硫化合物是（ B ）。
A 、硫醇B 、磺酸C 、硫醚D 、磺酰胺2、在实际中，广泛使用（ D ）水解法测定酯的含量。
A 、醇B 、盐C 、酸D 、碱3、消除试剂误差的方法是（ A ）。
A 、对照实验B 、校正仪器C 、选择合适的分析方法D 、空白试验4、可逆反应2HI （气） H 2（气）＋I 2（气）这一可逆反应，在密闭容中进行，当容器中压强增加时，其影响是（ A ）A 、正反应的速率与逆反应的速率相同程度增加B 只增加正反应的速率C 、只增加逆反应速率D 、正反应速率比逆速率增加得快5、5.12707.71303.40234.0⨯⨯的结果是（ D ） A 、0.0561259 B 、0.056 C 、0.05613 D 、0.05616、试样的采取和制备必须保证反取试样具有充分的（A ）。
A 、代表性B 、唯一性C 、针对性D 、准确性7、铁矿石试样常用（ A ）溶解。
A 、盐酸B 、王水C 、氢氧化钠溶液D 、水8、以BaCl 2作为SO 42-的沉淀剂，其过量的适宜百分数为（ B ）。
A 、100％B 、20～30％C 、50～80％D 、100～150％9、Kca Y 2-=1010.69,当pH ＝9时，log a Y (H)=1.29，则K ，caY 2-等于（ C ）。
A 、1011.98B 、10-9.40C 、109.40D 、1010.9610、某人根据置信度为90％对某项分析结果计算后写出如下报告、报告、合理的是（ A ）。
A 、（30.78±0.1）％B 、（30.78±0.1448）％C 、（30.78±0.145）％D 、（30.78±0.14）％11、以E-V 曲线法进行电位滴定，若所绘曲线形状不对称、拐点不敏锐，则应采用（ C ）法来求滴定终点。
A 、E-V 曲线B 、V∆∆E －V 曲线 C 、22V E ∆∆－V 曲线 D 、直线法12、下列各混合溶液，哪个不具有PH 值的缓冲能力（A ）。
车工高级理论试卷1
职业技能鉴定国家题库 车工(普通车工)高级理论知识试卷 注 意 事 项 1、本试卷依据2001年颁布的《车工》国家职业标准命制， 考试时间：60分钟。
2、请在试卷标封处填写姓名、准考证号和所在单位的名称。
3、请仔细阅读答题要求，在规定位置填写答案。
一、单项选择题(第1题～第80题。
选择一个正确的答案，将相应的字母填入题内的括号中。
每题1分，满分80分。
) 1．小滑板( )，不会使小刀架手柄转动不灵活或转不动。
A 、镶条弯曲 B 、导轨弯曲 C 、丝杠弯曲 D 、润滑良好 2．对组合夹具的调整，主要是对( )进行调整。
A 、定位件和压紧件 B 、定位件和支撑件 C 、定位件和导向件 D 、压紧件和支撑件 3．主轴箱的功用是支撑主轴并使其实现启动、停止、( )和换向等。
A 、升速 B 、车削 C 、降速 D 、变速 4．用一夹一顶或两顶尖装夹轴类零件，如果后顶尖轴线与( )不重合，工件会产生圆柱度误差。
A 、工件 B 、刀架 C 、主轴轴线 D 、溜板 5．使用量块检验轴径夹角误差时，量块高度的计算公式是( )。
A 、h=M —0.5（D+d ）—Rsin θ B 、h=M —0.5（D —d ）—Rsin θ C 、h=M+0.5（D+d ）—Rsin θ D 、h=M —0.5（D+d ）+Rsin θ 6．车削内、外球面的加工方法是( )。
A 、双手控制法 B 、仿形法 C 、成行刀法 D 、以上均可 7．车削螺纹时，中径产生尺寸误差产生的原因是( )。
A 、背吃刀量太小 B 、车刀切深不正确 C 、切削速度太低 D 、挂轮不正确 8．将斜视图旋转配置时，( )。
A 、必须加注“旋转”二字 B 、必须加注旋转符号“(向旋转” C 、必须加注“旋转((度” D 、可省略标注9．粗车多线蜗杆时，比较( )的分线方法是使用小滑板刻度分线。
A 、精确B 、简单实用C 、费时D 、繁琐10．精车尾座套筒内孔时，可采用搭中心架装夹的方法。
高级烟草专卖管理员 理论试卷1(高级)
烟草专卖管理岗位技能鉴定模拟考试理论试卷（高级一）部门XX 得分一、单项选择(第1题～第60题。
选择一个正确的答案，将相应的字母填入答题纸内的方框中。
每题1分，共60分。
)1. 档案一般可以分为()等，其中文书档案始终占主要地位。
A、文书档案、科技档案、专业档案B、文书档案、科技档案、专门档案C、文书档案、专门档案D、文书档案、科技档案2. 下列哪项制度不属于日常监管制度？()A、同级监管制度B、联席会议制度C、举报监督制度D、案件查处制度3. 行政法是规定国家行政主体的组织、职权、行使职权的方式、程序以与对行使行政职权的法制监督，调整()关系的法律规X系统。
A、民事B、刑事C、经济D、行政4. 以下关于制定周市场检查计划的相关说法错误的是()。
A、要突出检查重点区域B、要突出检查重点对象C、要突出检查重点问题D、要突出重点检查线路5. 烟草专卖执法人员在审查X某销售非法生产卷烟案件的过程中，发现X某前后两次的询问笔录存在前后不一致的问题，但后一次询问说叙述的事实有其他证据印证，执法人员遂对X某第一次的询问笔录不予采信，不将其作为证据使用。
这种对证据的审查方法是()。
A、比较取舍法B、询问释疑法C、矛盾排除法D、整合认证法6. 不属于产品质量法所称的产品X围之内的是()。
A、建筑材料B、建筑构件和设备C、建筑工程D、军工企业生产的民用产品7. 对使用涂改、伪造、变造的烟草专卖许可证的XX行为，烟草专卖行政主管部门可处以（）的行政处罚。
A、取消经营资格B、1000元以上罚款C、1000元以下罚款D、1000元罚款8. 下列人员不属于听证参加人X围的是()。
A、案件调查人员B、当事人与其委托代理人C、旁听群众D、证人与鉴定人9.违反许可证管理办法的处罚是指（）依据有关规定，对违反《烟草专卖许可证管理办法》的公民、法人或者其他组织的XX行为依法给予的行政处罚。
A．烟草专卖行政主管部门 B.工商行政管理部门C. 行政机关D.烟草专卖监督管理部门10. 行政复议的原则不包括()。
电气值班员高级(选择题)模拟试卷1(题后含答案及解析)
电气值班员高级（选择题）模拟试卷1(题后含答案及解析)题型有：1. 单项选择题单项选择题下列各题的备选答案中，只有一个是符合题意的。
1．自耦变压器一次侧电压与一次电流的乘积，称为自耦变压器的（）容量。
A．额定B．标准C．通过D．有效正确答案：C2．规定为三角形接线的电动机，而误接成星形，投入运行后（）急剧增加。
A．空载电流B．负荷电流C．三相不平衡电流D．负序电流正确答案：B3．为防止汽轮发电机组超速损坏，汽轮机装有保护装置，使发电机的转速限制在不大于额定转速的（）以内。
A．5％B．10％C．15％D．20％正确答案：B4．电动机在运行中，从系统吸收无功功率，其作用是（）。
A．建立磁场B．进行电磁能量转换C．既建立磁场，又进行能量转换D．不建立磁场正确答案：C5．发电机横差保护的不平衡电流主要是（）引起的。
A．基波B．三次谐波C．五次谐波D．高次谐波正确答案：B6．发电机匝间短路，其短路线匝中的电流（）一机端三相短路电流。
A．大于B．小于C．近似于D．等于正确答案：B7．正常运行的发电机，在调整有功负荷时，对发电机无功负荷（）。
A．没有影响B．有一定影响C．影响很大D．不一定有影响正确答案：B8．变压器呼吸器中的硅胶在吸潮后，其颜色应为（）。
A．粉红色B．橘黄色C．淡蓝色D．深红色正确答案：A9．发电机如果在运行中功率因数过高(cosφ=1)会使发电机（）。
A．功角减小B．动态稳定性降低C．静态稳定性降低D．功角增大正确答案：C10．异步电动机在启动过程中，使电动机转子转动并能达到额定转速的条件是（）。
A．电磁力矩大于阻力矩B．阻力矩大于电磁力矩C．电磁力矩等于阻力矩D．不确定正确答案：A11．六氟化硫介质，具有优越的（）性能。
A．绝缘B．灭弧C．绝缘和灭弧D．冷却正确答案：C12．电气设备检修工作人员，在10kV配电装置上工作时，其正常活动范围与带电设备的安全距离是（）m。
A．0．35B．0．4C．0．7D．0．8正确答案：B13．直流互感器的一次侧接在整流电路的直流侧，二次侧接上电流表，该表指示的是（）值。
高级英语1试卷
阅卷须知：阅卷用红色墨水笔书写，得分用阿拉伯数字写在每小题题号前，用正分表示，不得分则在题号前写0；大题得分登录在对应的题号前；统一命题的课程应集体阅卷，流水作业；阅卷后要进行复核，发现漏评、漏记或总分统计错误应及时更正；对评定分数或统分记录进行修改时，修改人必须签名。
Part Ι G rammar & Vocabulary (20%)Directions: there are 20 sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C, and D.Choose one word or phrase that correctly completes the sentence. Mark your answer on your answer sheet.1. Sarah is the only one of all the students of this high school who ________ by PekingUniversity.A. are admittedB. was admittedC. were admittedD. is admitted2. Once _______, the information superhighway will change the lifestyle of all theresidents on this island.A. it being completedB. it completedC. completedD. it completes3. Life is to be fortified by many friendships. To love and_________ is the greatest《 高级英语1》happiness.A. to be lovedB. being lovedC. lovedD. having been loved4. It is only when you overcome all difficulties and reach your goal _______fully awarethat the way to success is not paved with flowers.A. do you becomeB. then you becomeC. that you becomeD. have you become5. _________to show no emotion, the police officer stared straight ahead during theinspection.A. TrainingB. To be trainedC. being trainedD. trained6. Individual lines of the poem were very beautiful, but I didn’t see how the lines fittogether. To me, the poem wasn’t ____________.A. inherentB. coherentC. logicalD. corporate7. They are taking about vigorously about the people and countries _______they hadvisited.A. whichB. thatC. whatD. where8. Make sure you __________him immediately after you arrive and so in this case hewould not worry about you so much.A. would visitB. visitedC. have visitedD. visit9. No sooner _________ home than my grandfather asked me to read the newspaperfor him.A. had I arrivedB. I had arrivedC. did I arriveD. I arrived10. _______ towards globalization, competent information handling has become vital forsurvival in a competitive world.A. The world is movingB. The world has been movingC. With the world movingD. While the world moving11. Had you worked harder in the past three years, you ______ already a collegestudent as your best friend Tom is.A. areB. have beenC. wereD. be12. By the end of this century intelligent intelligent robot ___________to do most of thehousework for man.A. is expected to be inventedB. will have been expected to be inventedC. has been expected to be inventedD. is expected to have been invented13. The old man strolled to the beach, -_______________.A. his dog following himB. his dog followed himC. his dog was followedD. following by his dog14. I was so __________ the story that I forgot what time it was.A. caught up onB. caught up withC. caught up inD. caught in15. These mountain villages would be _________ if all the trees were cut down.A. worse outB. worse onC. worst outD. worse off16. These people argued that poverty had ___________crime in the town.A. resorted toB. burst intoC. given rise toD. made17. Luckily we’d brought a map with us, _______ we would have lost our way.A. with whichB. by whichC. witchD. without which18. If we had taken his advice, the project __________ sooner.A. would have been completedB. would be completedC. could completeD. could have completed19. At no time _____________ his name at the party.A. she ever mentionedB. ever did she mentionC. did she ever mentionD. she ever mentions20. I have great confidence ___________ these talented young people. They will beable to take __________ my job.A. for, overB. about, upC. in, overD. on, onDirections: Decide which of the choices given below would bestcomplete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your answer sheet.Wise buying is a positive way in which you can make your money go further. The 21 to go about purchasing an article or a service can actually 22 you money or can add 23 the cost.Take the 24 example of a hairdryer. If you are buying a hairdryer, you might 25 you are making the 26 buy if you choose one 27 you like and which is also the cheapest 28 price. But when you get it home you may find that it 29 twice as long as a more expensive 30 to dry your hair. The cost of the electricity plus the cost of your time could well 31 your hairdryer the most expensive one of all.So what principles should you 32 when you go out shopping? If you_33 your home, your car or any valuable 34 in excellent condition, you'll be saving money in the long 35 .Before you buy a new 36 , talk to someone who owns one. If you can, use it or borrow it to check it suits your particular 37 .Before you buy an expensive 38 ,or a service, do check the price and 39 is on offer. If possible, choose 40 three items or three estimates.21. A) form B) fashion C) way D) method22. A) save B) preserve C)in D)similar23. A) up B) to C) in D) on24. A) easy B) single C) simple D) similar25. A) convince B) accept C) examine D) think26. A) proper B) best C) reasonable D) most27. A) its B) which C) whose D) what28. A) for B) with C) in D) on29. A) spends B) takes C) lasts D) consumes30. A) mode B) copy C) sample D) model31. A) cause B) make C) leave D) prove32. A) adopt B) lay C) stick D) adapt33. A)reserve B) decorate C) store D) keep34. A) products B) possession C) material D) ownership35. A) run B) interval C) period D) time36. A) appliance B) equipment C) utility D) facility37. A) function B) purpose C) goal D) task38. A) component B) element C) item D) particle39. A) what B) which C) that D) this40. A) of B) in C) by D) fromPart III. Reading Comprehension (30%)Directions: In this section there are 2 passages followed by questions or unfinished statements, each with four suggested answers marked A, B, C and D. Choose the best one that you think is the correct answer. Mark your choice on the answer sheet.PASSAGE ALiving a long LifeIn the Caucasus region of Russia, nearly 50 out of every 100,000 people live to celebrate their 100th birthday, and many don’t stop at 100! By comparison, in America only 3 people in 100,000 reach 100. But these Russian old people aren’t alone. ThePakistani Hunzas in Ecuador seem to share the secret of long life too.These peoples remain healthy in body and spirit despite the passage of time. While many older persons in industrial societies become weak and ill in their 60s and 70s, some Georgians, aged 110 to 140, work in the field beside their great-great-grand children. Even the idea of aging is foreign to them. When asked, “At what age does youth end?” most of these old people had no answer. Several replied, “Well, perhaps at age 80.” The very youngest estimate was age 60.What accounts for this ability to survive to such old age, and to survive so well? First of all, hard physical work is a way of life for all of these loge-lived peoples. They begin their long days of physical labour as children and never seem to stop. For example, Mr. Rustam Mamedov is 142 years of age. He remembers his life experiences: the Crimean War of 1854; the Turkish War of 1878; the Bolshevuk Revolution in 1917. His wife is 116 years old. They have been married for 90 years. Mr. Mamedov has no intention of retiring from his life as a farmer. “Why? What else would I do?” he asks. Oh,h e’s slowed down a bit. Now he might quit for the day after 6 hours in the field instead of10.All these people get healthful rewards from the environment in which they work. They all come from mountainous regions. They live and work at elevations of 5,000 to 12,000 feet above the sea level. The air has less oxygen and is pollution-free. This reduced oxygen environment makes the heart and blood vessel system stronger.Another factor that may contribute to the good health of these people is their isolation. To a great extent, they are separated from the pressures and worries of industrial society.41. What is the main idea of this article?A. Mr. Mamedov’s lifeB. A description of several societies where people live a long life.C. Factors contributing to the health and long life of peopleD. people in the world enjoying a longer life42. The first paragraph -________.A. introduces the subject of articleB. tells why Americans don’t live as long as other peopleC. tells you some secrets about the HunzasD. shows only people in the Caucasas region enjoy a long life43. “The idea of aging is foreign to them” implies that ________.A. they don’t care much about their ageB. they would rather not tell their ageC. they won’t say anything about their age until they are asked toD. the idea of whether they are getting old has never occurred to them44. The description of Mr. Mamedov___________.A. implies his intention of retiring from his life as a farmerB. shows how he was survived the warsC. is an example of a typical long life among these peopleD. tells of the importance of doing hard physical work45. What’s the author’s view of “isolation”?A. It makes people healthy, wealthy and gay.B. It is one of the factors that contributes to one’s long life.C. It separates people from urban pressures and worriesD. It is only found in mountainous regions.46. According to the author, which of the following is true?A. Separation from the pressures and worries of industrial society is indispensable.B. Good family genes from the major factor in living longerC. Food and diet is the only factor that makes people strong and healthyD. A long span of life is believed to be a multifactor matter47. From this article we can conclude that -________ contribute(s) to the remarkablelong life of these people.A. moderate dietsB. clean mountain airC. daily hard workD. all the above factors48. How do you think the author feels about these long-lived people?A. He is much impressed with themB. He doesn’t care a bit about themC. Most probably he doesn’t like themD. He hopes that they will live a still longer lifePASSAGE BJust the Job!Rodney Mace, 35 is married with two young children, and is a part-time teacher of architectural history. “I am constantly surprised by other people’s surprise, when they come to the house and see me cleaning a floor or hanging out the washing. Their eyes open wide at the sight of it! Much of the comment comes from men, but I even more surprised at the number of women who comment too.”His wife Jane, an Oxford graduate in modern languages, has a demanding full-time job. She is director of the Cambridge House literacy scheme for adults in South London. Her working week involves several evenings and Saturdays, and at these times her husband is in sole charge of home and family. Apart from this, they share household jobs and employ a child-minder for the afternoons. This enables him to teach two days a week and to do what he considers his principle work: writing. He has written several books and spends much of his time in the British museum Reading Room, cycling there from his home in Brixton.People ask the Maces if they think that their children miss them. One can argue that satisfied parents generally have satisfied children, but in any case the Maces are careful to reserve time and energy to play with their children. “And they have now developed relationships with other adults and children”Previously, Rodney mace worked full-time and Jane only part-time. Then 18 months ago, the director of the literacy scheme left. “It seemed to me that Jane was very well suited to do this job. She was very doubtful about it. But I urged her to apply. She did, and she got it. ” Jane Mace confirms that she needed this encouragement, so as many women initially do.Did his male ego suffer from the change-over? Nothing like that occurred. But he still seems amazed at the way it changed his thinking: “I felt that we were finally going to be partners. I felt enormous relief. I was not avoiding responsibility, but changing it. Our relationship is so much better now. It has been a change for the good for both of us---I think for all of us, in every aspect of our lives. I cannot overemphasize that: in every aspect. I think it is fundamental that the woman works. The idea of equal partnership is an illusion if one partner does not work.”49. The article is about a couple whose married life is happier because ________.A. they have a truly equal partnershipB. the husband enjoys staying at homeC. they earn more moneyD. the wife has a full-time job50. At one time, Rodney Mace_________.A. spent all his time writing booksB. taught architecture and historyC. had a full-time jobD. worked for the Cambridge House literacy scheme51. Jane finally decided to apply for her present job because ___________.A. she thought she had better qualifications than othersB. her husband had persuaded her toC. it was very well paidD. some of her friends had encouraged her to52. The Maces____________.A. neglect their childrenB. always manage to spend some time with their childrenC. have helped to find friends for their childrenD. miss their children very much53. It is implied in the passage that _________.A. the Maces believe a good career is even more important than their family lifeB. Rodney’s children are quite happy with their position in the familyC. even capable woman sometimes need encouragement from their familiesD. the practice of sharing household jobs between husband and wife is commonplace in London54. According to this passage the challenge to conventional ideas about the man-womanrelationship__________A. is applauded worldwideB. seems to be sacrificing the men’s interests to the women’sC. has developed at an unheard-of speedD. will inevitably change people’s ways of thinking55. We can infer from this passage that a change-over of roles in the family_______A. is quite necessary in modern lifeB. is probably based on some practical reasonsC. aims solely at a complete emancipation of womenD. shows women are more necessary inferior to menPart IV Paraphrase (5%) Directions: In this section there are 5 sentences. According to the context you ’ve learned, give a restatement of the meaning of each sentence in your own words.56. I pictured this prodigy part of me as many different images, trying each one on for size.57. Absence of evidence is not evidence of absence.58. She was, to be sure, a girl who excited the emotions, but I was not one to let myheart rule my head.59. At that time economic status was considered the measure of the individual ’s abilityand talents.60. There is a limit to what flesh and blood can bear.Part V Translation (10%) Directions: In this section there are five Chinese sentences. Translate each sentence into English. Write down what you have done on your answer sheet.61. 许多科学家都在探讨地球之外是否有生命存在。
电焊工高级模拟试卷1(题后含答案及解析)
电焊工高级模拟试卷1(题后含答案及解析) 题型有：1. 是非题 2. 单项选择题是非题1．通常利用测定断弧长度来评定焊条的电弧稳定性。
( )A．正确B．错误正确答案：A2．碳当量法是用来判断材料焊接性的一种直接试验方法。
( )A．正确B．错误正确答案：B3．碳当量的计算公式适用于一切金属材料。
( )A．正确B．错误正确答案：B4．碳当量越高，材料的淬硬倾向越大，冷裂敏感性也越大。
( )A．正确B．错误正确答案：A5．奥氏体不锈钢的焊接性不能用碳当量来间接评定。
( )A．正确B．错误正确答案：A6．评定材料抗冷裂性最好的方法是热影响区最高硬度法，因为它考虑到了氢和应力两个因素。
( )A．正确B．错误正确答案：B7．采用斜Y形坡口焊接裂纹试验方法时，试验一定要在室温进行，试件不得进行预热。
( )A．正确B．错误正确答案：B8．采用斜Y形坡口焊接裂纹试验方法时，焊后应立即进行检查，以避免产生延迟裂纹。
( )A．正确B．错误正确答案：B9．采用斜Y形坡口焊接裂纹试验方法焊成的试件，其表面裂纹可用肉眼、磁粉或着色法进行检验。
( )A．正确B．错误正确答案：A10．搭接接头(CTS)焊接裂纹试验方法主要适用于低合金钢焊接热影响区由于马氏体转变而引起的裂纹试验。
( )A．正确B．错误正确答案：A11．进行搭接接头(CTS)焊接裂纹试验时，对焊接参数没有规定具体数值。
( )A．正确B．错误正确答案：B12．由于搭接接头(CTS)焊接裂纹试验焊缝的冷却速度较慢，所以未能大量推广应用。
( )A．正确B．错误正确答案：A13．T形接头焊接裂纹试验方法主要适用于奥氏体不锈钢T形接头角焊缝的裂纹试验。
( )A．正确B．错误正确答案：B14．插销试验可以用来评定焊接接头中各种形式的冷裂纹。
( )A．正确B．错误正确答案：B15．进行插销试验的关键是插销的缺口尖端必须位于焊接热影响区的粗晶区。
( )A．正确B．错误正确答案：A16．插销试验的优点之一是可以用临界应力值来定量地评定材料对焊根裂纹的敏感性。
厨师高级(国家三级)理论知识试卷1
厨师高级(国家三级)理论知识试卷1一、选择题（共10题，每题2分，共20分）1. 下列哪项是蔬菜的烹饪特征？- A. 选用成熟的蔬菜- B. 烹饪时间要长- C. 使用大火进行烹饪- D. 注重保持蔬菜的颜色和营养- 答案：D2. 以下哪种酱汁可用于调味西餐中的牛排？- A. 酸甜酱- B. 香辣酱- C. 孜然酱- D. 蘑菇酱- 答案：D3. 炒菜时，起锅前应该加入什么调味料？- A. 盐- B. 酱油- C. 糖- D. 味精- 答案：D4. 调味料“十三香”由多少种调料组成？- A. 10种- B. 13种- C. 15种- D. 20种- 答案：B5. 下列哪种炖菜的制作方法最为传统？- A. 干炖- B. 红烧- C. 卤煮- D. 煨焖- 答案：C6. 炒菜时，下列哪种食材应该最后加入锅中？- A. 蔬菜- B. 肉类- C. 蘑菇类- D. 豆类- 答案：A7. 明炉烧烤是哪种烹饪方法的代表？- A. 蒸- B. 炒- C. 煎- D. 烤- 答案：D8. 西餐中的酸黄瓜属于什么类别的佐料？- A. 凉菜- B. 热菜- C. 酱料- D. 调味品- 答案：C9. 糖醋鱼属于下列哪一类菜品？- A. 凉菜- B. 热菜- C. 主食- D. 汤类- 答案：B10. 中餐中，蛋炒饭属于什么类型的菜品？- A. 凉菜- B. 热菜- C. 主食- D. 汤类- 答案：C二、简答题（共5题，每题10分，共50分）1. 简述鸡肉的适宜烹饪方法及常见菜品。
- 答案：鸡肉适宜水煮、炖煮、烤制和炒制等烹饪方法。
常见的鸡肉菜品有宫保鸡丁、蜜汁烤鸡翅、香辣鸡块等。
2. 简述调味料“五香粉”的成分和使用场景。
- 答案：五香粉由八角、桂皮、丁香、香叶和花椒等组成。
它常用于炖菜、红烧菜品、炖肉等菜品中，能提升菜品的香气和口感。
3. 简述西餐中常见的主食及其制作方法。
- 答案：西餐中常见的主食有面包、面条、米饭和土豆等。
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煤化工工种职业技能鉴定《化学检验工》高级工（三级）理论考试试卷（卷）注意事项：1、答题前在试卷及答题卡规定的位置上，准确书写姓名、单位、准考证号、工种代码；2、必须用2B铅笔将正确答案填涂到答题卡上对应的题号中，不允许用钢笔或圆珠笔填涂，在试卷内填涂答案无效，修改时使用塑料橡皮擦除干净；3、不得在答题卡四周的图像定位点上及周围作任何标记；4、要保持答题卡的整洁，不能折叠或弄破；5、本份试卷共3道大题，满分100分，考试时间为90分钟。
一、判断题（每题1分，共30分，将正确的答案在答题卡中填涂“A”，错误的填涂“B”）：（B）1、电子天平使用前不用校准。
(A)2、Ag+ ,Pb2+ ,Hg2+与Cl-反应生成白色氯化物沉淀.由于PbCl2溶于沸水,在系统分析中就是利用此性质使PbCl2与AgCl,HgCl2分离。
(B)3、使用没有校正的砝码是偶然误差。
(B)4、用部分风化的H2C2O4·2H2O标定NaOH是偶然误差。
(A)5、滴定分析是依据标准溶液的浓度和使用的体积。
(B)6、化学计量点是指观察出指示剂变色的点。
(A)7、酸碱滴定反应能否直接进行,可用滴定反应平衡常数k来说明,k越大,滴定反应进行得越完全。
(A)8、以配位键形成的化合物称为络合物。
(B)9、以铬黑T为指示剂,溶液PH值必须维持在5～7.直接滴定法滴定到终点时溶液由鲜红色变到纯兰色。
(B)10、可用于测定水的硬度的方法有酸碱滴定法。
(A)11、EDTA溶于水中,此溶液的PH值大约为4.4。
(A)12、BaSO4是强酸强碱盐的难溶化合物,所以具有较大的定向速度而形成晶形沉淀。
(A)13、洗涤沉淀是为了洗去表面吸附的杂质和混杂在沉淀中的母液。
(B)14、重量法分离出的沉淀进行洗涤时,洗涤次数越多,洗涤液用量就越多,则测定结果的准确度越高。
(B)15、AgCl是强酸盐的沉淀,所以它的溶解度与酸度无关。
(A)16、人眼睛能看到的可见光,其波长范围在400～760nm之间。
(B)17、在光度分析中,吸光度越大,测量的误差就越小。
(×)(B)18、有色溶液的透光率随浓度的增大而减小,所以透光率与浓度成反比。
(×)(B)19、若显色剂及被测试液中均无其它有色离子,比色测定应采用试剂空白作参比溶液。
(B)20、测定Cu2+时加氨水作显色剂生成兰色的铜氨络离子[Cu(NH3)2]2+ ,应选择红色滤光片。
(A)21、光电比色法和目视比色法的原理相同,只是测量透过光强度的方法不同,前者用光电池后者用眼睛判断。
(A)22、反应必须按照化学反应式定量地完成的含义是:一是反应物是一定的,二是到达终点时,剩余的反应物的量,不应大于0.1%才认为是定量地完成。
(B)23、根据溶度积原理,难溶化合物的Rsp为常数,所以加入沉淀剂越多,则沉淀越完全。
(A)24、长期不用的滴定管要除掉凡士林后垫纸，用橡皮筋栓好活塞保存。
(A)25、对EDTA滴定法中所用金属离子指示剂,要求它与被测离子形成的络合物条件稳定常数K'MY≥8。
（B）26、在Fe3+ ,Al3+ ,Ca2+ ,Mg2+ 的混合液中,用EDTA法测定Fe3+ ,Al3+ 要消除Ca2+ ,Mg2+ 的干扰最简便的方法是络合掩蔽法。
（B）27、在EDTA络合滴定中,酸效应系数越大,络合物的稳定性越大。
（A）28、甲基红的PH变色范围 4.4(红)～6.2(黄),溴甲酚绿的PH变色范围是 4.0(黄)～5.6(蓝).将这两种指示剂按一定比例混合后的变色点PH为5.1.将这种混合指示剂用于以NaOH 标准溶液滴定HAC试液,滴定终点时指示剂由酒红色变为绿色。
（B）29、以铁铵钒为指示剂,用NH4CNS标准液滴定Ag+ 时,应在弱碱性条件下进行。
（B）30、影响化学反应平衡常数值的因素是反应物的浓度。
二、单项选择题（每题1分，共30分，将正确的答案填涂在答题卡内）：(D)31、某25度的水溶液,其PH值为4.5,则此溶液中的OH- 浓度为:A、10-4．5mol/LB、104．5 mol/LC、10 -11。
5mol/LD、10 -9。
5mol/L(C)32、将PH=13.0的强碱溶液与PH=1.0的强酸溶液以等体积混合,混合后溶液的PH为:A、12.0B、10.0C、7.0D、6.5(C)33、将20mlNaCl溶液通过氢离子交换数脂,经定量交换后,流出液用0.1mol/LNaOH溶液滴定时耗去40ml.该NaCl溶液的浓度(mol/L)为:A、0.05B、0.1C、0.2D、0.3( B)34、用重铬酸钾法测定铁,25.00ml0.01000mol/L的K2Cr2O7溶液相当于Fe2O3(其摩尔质量为159.79g/mol)多少毫克的计算式为:A、25.00(×)0.01000(×)159.7(×)2/6B、25.00(×)0.01000(×)159.7(×)6/2C、25.00(×)0.01000(×)159.7(×)1/2000D、25.00(×)0.01000(×)159.7(×)1/6000(D)35、将0.56g含钙试样溶解成250ml试液.移取25ml试液,用0.02mol/LEDTA标准溶液滴定,耗去30ml,则试样中CaO(其摩尔质量为56g/mol)含量约为:A、3%B、6%C、12%D、60%( C )36、以EDTA法测定某试样中MgO(其摩尔质量为40.31g/mol)含量,用0.02mol/LEDTA滴定.设试样中含MgO约50%,试样溶解后容成250ml,吸取25ml进行滴,则试样称取量应为:A、0.1～0.2gB、0.16～0.32gC、0.3～0.6gD、0.6～0.8g E.0.8～1.2g (D)37、滴定分析中,一般利用指示剂颜色的突变来判断等当点的到达,在指示剂变色时停止滴定,这一点称为:A、等当点B、滴定分析C、滴定D、滴定终点(D)38、有一碱液可能为NaOH或NaHCO3或Na2CO3或它们的混合物,用标准HCl滴定至酚酞终点时耗去酸V1ml,继以甲基橙为指示剂又耗去HClV2ml且V1<V2,则此碱液为:A、Na2CO3B、NaHCO3C、NaOHD、Na2CO3＋NaHCO3(A)39、人眼感觉到的光称为可见光,其波长范围为:A、400～780nmB、200～400nmC、200～600nmD、400～780um(B）40、用30mlCCl4萃取等体积水溶液中的I2(分配比为8.5),下列何种萃取方法最为合理?A、30ml1次B、10ml3次C、5ml6次D、2ml15次(B)41、定量分析方法,按试样用量可分为常量,微量,半微量,超微量等分析方法.常量分析的试样取用量的范围为:A、大于0.1mg或小于0.01mlB、大于0.1g或小于10mlC、在0.1～0.01g或1～10mlD、大于0.5g或大于35ml(B)42、欲配制浓度3mol/LH2SO4溶液,在100ml纯水中应加入浓H2SO4多少毫升?A、50mlB、20mlC、10mlD、5ml(A)43、ppm的表达式为:A、溶质质量/溶液质量(×)106B、溶质质量/溶液质量(×)10-6C、溶质质量/溶液质量(×)109D、溶质质量/溶液体积(B)44、欲测定SiO2的准确含量,需将灼烧称重后的SiO2以HF处理,处理时宜采用下列何种器皿?A、瓷坩锅B、铂坩锅C、银坩锅D、镍坩锅(B)45、下列物质的干燥条件中何者是错误的?A、邻苯二甲酸氢钾在105℃～110℃的电烘箱中B、Na2CO3在105℃～110℃电烘箱中C、CaCO3放在盛硅胶的干燥器中 D、H2C2O4·2H2O放在空的干燥器中(C)46、选择合适的天平: 称取酸碱滴定法测定所用的某试样0.1～0.2g 名称台天平普通天平电光天平半微量天平A B C D最大载荷 200g 200g 200g 20g 感量 0.1g 1mg 0.1mg 0.01mg(D)47、定量分析要求测定结果的误差:A、愈小愈好B、等于零C、没有要求D、在允许误差范围内(D)48、可用下法中哪种方法减小分析测定中的偶然误差?A、进行对照试验B、进行空白试验C、进行仪器检准D、增加平行试验的次数(D)49、以HCl溶液滴定某碱样,滴定管的初读数为0.25±0.01ml,终度数为32.25±0.01ml,则用去盐酸溶液的准确容积为:A、32mlB、32.0mlC、32.00mlD、32.00±0.02ml(C)50、对某试样进行三次平均测定,得CaO平均含量为30.6%,而真实含量为30.3%,则30.6%-30.3%=0.3%为:A、相对误差B、相对偏离C、绝对误差D、系统误差(C)51、EDTA溶于水中,此溶液的PH值大约为:A、0.7B、12.0C、4.4D、5.5(A)52、用碘量法测定Cu2+时,加入KI作用，错误的是:A、氧化剂B、还原剂C、络合剂D、沉淀剂(D）53、AgNO3基准物标定溶液应选择下列哪种滴定指示剂:A、酚酞B、甲基橙C、甲基红D、铬酸钾(D)54、莫尔法测定CL-含量时,要求介质的PH值在6.5～10.0之间,若酸度过高则:A、AgCl沉淀不完全B、AgCl沉淀吸附Cl-增强C、AgCl沉淀易胶溶D、Ag2CrO4沉淀不易形成(C)55、滴定分析的相对误差一般要求为0.1%,滴定时耗用标准溶液的体积应控制在:A、10ml以下B、10～15mlC、20～30D、15～20(C)56、由于计算器得(2.236(×)1.1124)/(1.036(×)0.2000)的结果为12.004471,按有效数字运算规则,应将结果修约为:A、12B、12.0C、12.00D、12.004(D)57、某含铝试样,经过处理之后获得一定重量的PbSO4,并由此PbSO4的重量计算试样中Pb3O4的含量计算时使用的化学因素为:A、PbSO4/Pb3O4B、3PbSO3/Pb3O4C、3Pb/Pb3O4D、Pb3O4/3PbSO4(D)58、某金属离子x与R试剂形成一有色络合物,若溶液中X的浓度为1.0×10-5mol/L,用1cm比色皿在525nm处测得吸光度为0.400,则此络合物在525nm处的摩尔吸光系数为:A、4×10-3B、4×103C、4×10-4D、4×104(B)59、用电光天平称物,天平的零点为-0.3mg.当砝码和环码加到11.3500g时,天平停点为+4.5mg,此物重为:A、11.3545gB、11.3548gC、11.3542gD、11.0545g(B)60、H2PO4-的共轭碱是:A、H3PO4B、HPO42- C、PO43- D、OH-三、多项选择题（每题1分，共40分，请将您认为正确的答案序号填在括号内）：(CD)61、在滴定分析中，出现下列哪种情况会导致系统误差（）A、试样未充分混匀；B、滴定时溶液有溅出；C、所用纯水中有干扰离子；D、天平两臂不等长；（BC）62、在分析中做空白实验的目的是（）A、提高精密度；B、提高准确度；C、消除系统误差；D、消除偶然误差；（C）63、某标准溶液的浓度，其三次平行测定结果为：0.1023mol/L、0.1020mol/L、0.1024mol/L，如果第四次测定结果不为Q检验法（n=4时，Q0.95=0.76）所弃去，则最高值为（）。