昆明理工大学826物流工程学2020年考研真题试卷试题
物流师历年考试真题及答案qu

物流师考试试题(含答案)一、单项选择题1.对工作之余恶毒继续学习,应该采取的做法是( D )。
A.能应付工作就不再学习B.如果单位要求就去学习C.如果能有充裕时间,多学点更好D.挤时间学习2.“供应链中的节点企业应保持一定量的库存”这体现了“库存”的(D)。
A.规模经济的作用B.平衡供求的作用C.地域专业化的作用D.时间效用的供应缓冲作用3.将供应链划分为不同类型的基本标准是( A )。
A.市场变动与主导成员平衡能力B.市场需求与供应的稳定结构C.供应链成员的数量与能量D.产品复杂性决定的商业关系4.(D)是已分拣商品脱离主输送机(或主传送带)进入集货区域的通道,一般由钢带、皮带、滚筒等组成滑道,使商品从主输送装置滑向集货站台,在那里工作人员将该道口的所有商品集中后,或是入库储存,或是组配装车并进行配送作业。
A.控制装置B.分类装置C.输送装置D.分拣道口5.(A)方式不仅快速省力,而且准确,尤其适应于多品种业务繁忙的配送中心。
A.利用自动分类机分货 B.人工分货C.“播种方式”分货D.“摘果方式”分货6.现代物流企业职业道德建设重点从(A)和行为规范两个层面来开展。
A.核心价值观 B.敬业精神 C.规章制度 D.企业文化7.关于线分类的缺点,正确的是(D)。
A.线分类的主要缺点在于不能充分利用容量B.难以手工处理信息C.它属于传统的习惯分类方式,不便于计算机对信息的处理D.结构弹性差。
一旦确定分类深度和每一层级的类目容量并固定了划分基准后,要想修改某一个计划基准是比较困难的8.生产物流控制的对象是( D )。
A.物料B.操作者和流程C.设备D.A、B和C9.WMS系统出库处理的信息与单证处理流程为( C )。
A.出库单→拣货单→提货单→运送单B.出库单据→拣货单→配载通知→运送路线→存储结算单C.生成出库单据→输出货运单→输出包装明细→确认出库→生成会计数据D.出库单→提货单→行车单→结算单10.采购市场调查程序是( B )。
2020年云南昆明理工大学工程力学考研真题A卷

2020年云南昆明理工大学工程力学考研真题A 卷一、判断题(正确的在括号中打“√”,错误的在括号中打“×”。
每空1分,共15分 ) 1、若力系中各力的作用线在同一个平面内,该力系称为平面力系。
( ) 2、质点系动能的变化等于作用在质点系上全部外力所作的功之和。
( ) 3、纯弯曲的梁,横截面上只有剪力,没有弯矩。
( )4、应用平面任意力系的二矩式方程解平衡问题时,两矩心位置均可任意选择,无任何限制。
( )5、作用于刚体上的力可平行于作用线移到刚体上任一点。
( )6、线应变是构件中单位长度的变形量。
( )7、一般情况下,梁的强度由极限应力控制。
( )8、若物体内各点的应变均为零,则物体无位移。
( )9、连接件产生的挤压应力与轴向压杆产生的压应力是不相同的。
( ) 10、杆件整体平衡时局部不一定平衡。
( ) 11、静定对称截面梁,无论何种约束形式,其弯曲正应力均与材料的性质无关。
( ) 12、单元体切应力为零的截面上,正应力必有最大值或最小值。
( ) 13、梁的横截面上作用有负值弯矩,其截面中性轴上侧各点受到压应力作用,下侧各点受到拉应力作用。
( )14、空心圆杆受轴向拉伸时,在弹性范围内,其外径与壁厚的变形关系是外径增大且壁厚也同时增大。
( ) 15、低碳钢试件在拉断时的应力为其强度极限。
( )二、填空题(每题2分,共30分)1、受力物体上的外力一般可分为主动力和 两大类。
2、杆件受到一对大小相等、转向相反、作用面与轴线垂直的外力偶作用时,杆件任意两相邻横截面产生绕杆轴相对转动,这种变形称为 。
3、EA 称为 抗拉压刚度 ,反映了杆件抵抗 变形的能力。
4、提高梁强度和刚度的主要措施有: 、 、 。
5、组合受力与变形是指 。
6、保持扭矩不变,长度不变,圆轴的直径增大一倍,则最大切应力τmax 是原来的 倍,单位长度扭转角是原来的 倍。
7、圆截面梁,保持弯矩不变,若直径增加一倍,则其最大正应力是原来的 倍。
昆明理工大学823内燃机原理2020年考研真题

昆明理工大学2020年硕士研究生招生入学考试试题(A卷)考试科目代码:823 考试科目名称:内燃机原理考生答题须知1.所有题目(包括填空、选择、图表等类型题目)答题答案必须做在考点发给的答题纸上,做在本试题册上无效。
请考生务必在答题纸上写清题号。
2.评卷时不评阅本试题册,答题如有做在本试题册上而影响成绩的,后果由考生自己负责。
3.答题时一律使用蓝、黑色墨水笔或圆珠笔作答(画图可用铅笔),用其它笔答题不给分。
4.答题时不准使用涂改液等具有明显标记的涂改用品。
一、填空题(每空1分,共40分)1.根据缸内着火方式内燃机可分为:(1)、(2)。
2.内燃机的动力性能指标参数主要有:(3)、(4)、(5)。
3.内燃机中的机械损失功主要包括:(6)、(7)、(8)。
4.内燃机的机械损失测量方法主要有:(9),(10),(11)和(12)。
5.高压共轨柴油机电控系统一般由:(13)、(14)、(15)三部分组成。
6.石化柴油的(16)较高,其自燃温度较低,所以采用(17)方式着火;石化汽油的(18)较高,其自然温度较高,所以采用(19)方式着火。
7.目前,随着汽车排放法规的不断升级,汽油车和柴油车国六排放标准主要控制的常规排放物包括:(20)、(21)、(22)三种气体排放和(23)固态排放。
8.内燃机混合气形成过程中,缸内气体流动方式主要有(24)、(25)、(26)和(27)。
9.不同用途内燃机在实际运行中的工况是不同的,典型的发动机运行工况通常主要分为以下三类:(28)、(29)、(30)。
10.柴油机热效率高于汽油机,其燃烧过程也存在差异,汽油机的燃烧过程一般分为(31)、(32)和(33)。
11.采用高压共轨技术是改善柴油机性能的重要措施,提高燃油喷油压力时可显著降低(34)排放,但是通常会导致(35)排放升高。
12.理论循环中,混合循环分别由(36)、(37)、(38)、(39)、(40)五个热力过程组成。
昆明理工大学供应链物流管理考试试题及答案

昆明理工大学供应链物流管理考试试题及答案二、简答题(每小题4分,共计16分)31.什么是安全库存?31?是为了应付需求、生产周期或供应周期等可能发生的不测变化而设置的一定数量的库存。
37.某企业每年需要耗用物资1 0 0 0件,现已知该物资的单价为4 0元,同时已知每次的订货成本为2 0元,每件物资的年存储费率为2 5%,本题中一年工作时间按3 5 0天计算,订货提前期为2 7 天。
请计算:(1 )经济订货批量是多少?(2)一年应定几次货?(3)订货点的库存储备量为多少?37. (1)写出EOQ^式得EOQ= 2DCV PH严每次订货成本x年需求总量彳单价汽年存储成本率经济订货批量是200件(2)一年订货次数=1000/200=500 (3)订货点的识破储备量=10000/350*7=700四、案例分析题(共计18分)DZ汽车有限公司目前仅“JD”汽车就有70 多个品种,近2 0种颜色,而每辆车都有2 0 0多种零部件基本处于“零库存”状态,这是该公司物流控制系统的杰作。
该公司的整车车间可同时生产三种不同品牌的汽车,却没有仓库。
该公司的零部件的送货形式有三种:第一种是电子看板,及公司每月把生产信息通过电脑网络传递到各供货商,各供货商根据这一信息安排自己的生产,然后公司按照生产情况发出供货信息,对方利用自备车辆将零部件送到公司各车间的入口处,再由入口处分配到车间的工位上。
第二种采用准时生产方式(just intime,JIT),公司按生产顺序把配货但传送到供货商,对方也按顺序装货直接把零部件送到工位上,从而取消了中间仓库环节。
第三种是批量进货,供货厂每月对于那些不影响大局又没有变化的小零件分批量地送一次到两次。
依据以上案例回答:3 8 .看板管理的作用是什么?(6分)3 9 .根据本案例,你认为JIT方式还适合那些库存的管理?(6分)40.本案例中,小零部件的库存控制采用了什么系统?这个系统是如何运行的?(6分)四、案例分析题38.看板起着直接传递生产及运送指令的作用,这也是看板最基本的功能。
物流工程复习题

物流工程复习题课程名称:物流工程(限110分钟)专业:层次:姓名:学号:年级:考分:虚线以上为试卷卷头一、单项选择(每题1分,共15分)1.下列不能体现物流要素集成的是()。
A.在经济、技术、科学及管理等社会实践中,对产品、工作、过程、服务等普遍的活动和重复性事务、概念进行制定、发布和实施统一的标准。
B.第四方物流对公司内部和具有互补性的服务供应商所拥有的不同资源、能力和技术进行整合和管理,并为客户提供一整套供应链解决方案C.2002 年初,经过整合原中远国际货运有限公司的物流资源和中国外轮代理总公司全部资源,中远物流有限公司成立D.某企业通过统筹规划,在数据、系统、业务等方面实现基础资料维护、功能模块、业务流程、信息查询、统计分析、商务智能、决策支持等多方面的共享2.不属于物流网络线路的是()。
A. 煤气管道B. 的士专用道路C.公交站台D. 粉尘运输管道3.下列关于物流系统规划中多设施选址规划问题的说法不准确的是()。
A. 常用混合整数线性规划法处理B. 对于实际多设施选址规划问题,通常需要借助数值模拟法才能求解C.是否选择某个仓库或某条线路可以用 0-1 变量来刻画D.所有决策变量必须是整数4.是否使用第三物流要视企业的具体情况而定,采用自营物流还是物流外包主要取决于下列两个因素:物流对企业的重要度和企业经营物流的能力。
如果物流对企业的重要度较低,同时企业经营物流的能力较弱,则应该选择()。
A. 自营物流B. 寻求强有力的物流合作伙伴C.物流外包D. 成为物流合作关系的核心5.区域物流系统网络综合评价指标中关于物流国土占用以及环境污染的描述体现的指标是()。
A. 社会适应性B. 环境资源C.供需平衡状况D. 技术性6.企业物流活动的现状可以从客户反应、库存、供应、运输和仓储五个大类进行评价。
下列不属于企业物流系统性能评价指标体系中关于运输系统的评价指标的是()。
A. 准时发出率B. 无损坏送货率C.存货周转率D. 完美路线率7.根据流体经营者的商品计划而形成的商品流向即()。
2020年云南昆明理工大学单考英语考研真题A卷

2020年云南昆明理工大学单考英语考研真题A卷Part I Vocabulary and Structure (20 points, 1 point each)Direction: In this part, there are 20 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A, B, C and D. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center.1.You ______________ park here! It’s an emergency exit.A.wouldn’tB. needn’tC. couldn’tD. mustn’t2.The dictionary is what I want, but I don’t have enough money______________ me.A.byB. forC. inD. with3.He had lost his temper and his health in the war and never found______________ of them again.A.neitherB. eitherC. eachD. all4.The book has been translated into thirty languages since it ____________ on the market in 1073.A.had comeB. has comeC. cameD. comes5.To improve the quality of our products, we asked for suggestions ______________ had used the products.A.whoeverB. whoC. whicheverD. which6.This restaurant has become popular for its wide ______________ of foods that suit all tastes and pockets.A.divisionB. areaC. rangeD. circle7.After the earthquake, the first thing the local government did was to provide______________ for the homeless families.A.accommodationB. occupationC. equipmentD. furniture8.In this lecture, I can only give you a purely ______________ view of how we can live life to the full and make some suggestions about the future.A.privateB. personalC. uniqueD. different9.Mistakes don’t just happen; they occur for a reason. Find out the reason, and then making the mistake becomes ______________.A.favourableB. preciousC. essentialD. worthwhile10.If I find someone who looks like the suspect, my ______________ reaction will be to tell the police.A.physicalB. immediateC. sensitiveD. sudden11.Niagara Falls is a great tourist ______________, drawing millions of visitors every year.A.attentionB. attractionC. appointmentD. arrangement12.The hopes, goals, fears and desires ______________ widely between men and women, between the rich and the poor.alter B. shift C. transfer D. vary13.It is our ______________ policy that we will achieve unity through peaceful means.A.consistentB. continuousC. considerateD. continua14.Between 1974 and 1997, the number of overseas visitors expanded ______________ 27%.A.byB. forC. toD. in15.He is ______________ about his chances of winning a gold medal in the Olympics next year.A.outstandingB. optionalC. optimisticD. obvious16.His writing is so ______________ that we can't clarify his ideas in first reading.A.obscureB. objectiveC. obligingD. obstacle17.He gave his ______________ for new marketing procedures.A.representationsB. presentationsC. commentsD. memoranda18.I hope you ______________ all the material before you make the final decision.A.will have readB. will readC.will be readingD. would have read19.Hello! You ______________ be the assistant. I’m Mr. Munroe.A.ought toB. shouldC. couldD. must20.You have no right ____________________ to read what is written inside.A.indeedB. actuallyC. whatsoeverD. anyhowPart II Cloze (10 points, 1 point each)Directions: There are 10 blanks in the following passage. For each blank, there are four choices marked A, B, C and D. Choose the ONE that best fits into the passage. Then mark the corresponding letter on the Answer Sheet with a single line through the center.Most people give little thought to the pens they write with, especially since the printers in modern homes and offices mean that very 21 things are handwritten. All too often, people buy a pen based only on 22 , and wonder why they are not satisfied 23 they begin to use it. However, buying a pen that you’ll enjoy is not 24 if you keep the following in mind.First of all, a pen should fit comfortably in your hand and be 25 to use. The thickness of the pen is the most important characteristic 26 comfort. Having a small hand and thick fingers, you may be comfortable with a thin pen. If you have a 27 hand and thicker fingers, you may 28 a fatter pen. The length of a pen can 29 influence comfort. A pen that is too 30 can easily feel top-heavy and unstable.21.A. many B. few C. pleasant D. important22.A. looks B. reason C. value D. advantages23.A. once B. if C. because D. though24.A. convenient B. practical C. strange D. difficult25.A. heavy B. easy C. hard D. safe26.A. taking B. finding C. determining D. seeking27.A. stronger B. weaker C. smaller D. larger28.A. prefer B. recommend C. prepare D. demand29.A. hardly B. also C. never D. still30.A. thick B. light C. long D. softPart III Reading Comprehension (30 points, 2 points each)Directions: In this part there are 3 passages. Each passage is followed by 5 questions or unfinished sentences. For each of them there are 4 choices marked A, B, C and D. Choose the best answer and mark your choice on the Answer Sheet with a single line through the center.Passage 1Questions 31 to 35 are based on the following passage.An increase in students applying to study economics at university is being attributed to the global economic crisis awakening a public thirst for knowledge about how the financial system works.Applications for degree courses beginning this autumn were up by 15% this January, according to UCAS, the Universities and Colleges Admissions Service. A spokesman for the Royal Economic Society said applications to do economics at A-level were also up.Professor John Beath, the president of the society and a leading lecturer at St. Andrews University, said his first-year lectures—which are open to students from all departments—were drawing crowds of 400, rather than the usual 250. “There are a larger number of students who are not economics majors, who would like to learn something about it. One of the things I have done this year is to relate my teaching to contemporary events in a way that one hasn‘t traditionally done,” he added.University applications rose 7% last year, but there were rises above average in several subjects. Nursing saw a 15% jump, with people’s renewed interest in careers in the public sector, which are seen as more secure in economic crisis.A recent study showed almost two thirds of parents believed schools should do more to teach pupils about financial matters, and almost half said their children had asked them what was going on, although a minority of parents felt they did not understand it themselves well enough to explain.Zack Hocking, the head of Child Trust Funds, said, “It’s possible that one good thing to arise from the downturn will be a generation that’s financially wiser and better equipped to manage their money through times of economic uncertainty.31.Professor John Beath’s lectures are ______________.A.given in a traditional wayB. connected with the present situationC.open to both students and their parentsD. warmly received by economists32.Careers in the public sector are more attractive because of their ______________.A.greater stabilityB. higher payC. fewer applicationsD. better reputation33.In the opinion of most parents, ______________.A.economics should be the focus of school teachingB.more students should be admitted to universitiesC.the teaching of financial matters should be strengthenedD.children should solve financial problems themselves34.According to Hocking, the global economic crisis might make the youngsters ______________.A.wiser in money managementB. have access to better equipmentC.confident about their future careersD. get jobs in Child Trust Funds35.What’s the main idea of the text?A.Universities have received more applications.B.Economics is attracting an increasing number of students.C.College students benefit a lot from economic uncertainty.D.Parents are concerned with children’s subject selection.Passage 2Questions 36 to 40 are based on the following passage.Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning. Food poisoning is usually not serious, but some types are deadly. The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.Certain microorganisms cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release poisons that make people sick. Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have bad reaction to those chemicals when they eat the crops.Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms. When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish ban be poisonous.Most people recover from food poisoning after a few days of resting and drinking extra water. If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.36.Which of the following statements is NOT true?A.Food when poisoned can make people sick.B.Food poisoning means death.C.Food poisoning comes in varieties.D.Food poisoning can be serious.37.We know from the passage that the symptoms of food poisoning ________________.A.are always accompanied by a feverB.are too common to be notedC.can be noticed within hoursD.can be ignored38.Food poisoning can be caused by all the following EXCEPT ________________.A.some chemicalsB. low temperaturessome tiny living things D. certain natural materials39.From Paragraph 5, we can learn that ________________.A.mushrooms should not be eatenB.vegetables are safer than meat and seafoodC.natural poisons are more dangerous than chemicalsD.different types of food should be handled differently40.It can be inferred from the passage that ________________.A.Natural materials are safe in food processingB.Chemicals are needed in food processingC.Food poisoning can be kept under controlD.Food poisoning is out of controlPassage 3Questions 41 to 45 are based on the following passage.Many a young person tells me he wants to be a writer. I always encourage such people, but I also explain that there's a big difference between “being a writer” and writing. In most cases these individuals are dreaming of wealth and fame, not the long hour alone at a typewriter. “You’ve got to want to write,” I say to them, “not want to be a writer”.The reality is that writing is a lonely, private and poor-paying affair. For every writer kissed by fortune there are thousands more whose longing is never rewarded. When I left a 20-year career in the U.S. Coast Guard to become a freelance writer,I had no prospects at all. What I did have was a friend who found me my room ina New York apartment building. It didn't even matter that it was cold and had no bathroom. I immediately bought a used manual typewriter and felt like a genuine writer.After a year or so, however, I still hadn't gotten a break and began to doubt myself. It was so hard to sell a story that I barely made enough to eat. But I knew I wanted to write, I had dreamed about it for years. I wasn't going to be one of those people who die wondering: What if? I would keep putting my dream to the test even though it meant living with uncertainty and fear of failure. This is the shadowland of hope, and anyone with a dream must learn to live there.41.The passage is meant to ________________.A.warn young people of the hardships that a successful writer has to experienceB.advise young people to give up their idea of becoming a professional writerC.show young people it’s unrealistic for a writer to pursue wealth and fameD.encourage young people to pursue a writing career42.What can be concluded from the passage?A.Genuine writers often find their work interesting and rewarding.B.A writer’s success depends on luck rather than on efforts.C.Famous writers usually live in poverty and isolation.D.The chances for writer to become successful are small43.Why did the author begin to doubt himself after the first year of his writing career?A.He wasn’t able to produce a single book.B.He hadn’t seen anything for the better.C.He wasn’t able to have a rest for a whole year.D.He thought that he lacked imagination.44.“…people who die wondering: What if?”(Line3, Para 3) refers to “those ________________”.A. who think too much of the dark side of lifeB. who regret giving up their career halfwayC. who think a lot without making a decisionD. who are full of imagination even upon death45.“Shadowland” in the last sentence refers to ________________.A. the wonderland one often dreams aboutB. the bright future that one is looking forward toC. the state of uncertainty before one’s final goal is reachedD. a world that exists only in one’s imaginationPart IV Translation (20 points)A.Directions: Translate the following paragraph into Chinese on the Answer Sheet.(10 points)46.In medicine as in law, government, and other lines of work, the requirements of honesty often seem less important because of greater needs: the need to shelter from cruel news or to uphold a promise of secrecy; to expose dishonesty or to promote the public interest. At time, doctors see important reasons to lie for the patient’s own sake; in their eyes, such lies differ sharply from self-serving ones. “Ours is a profession which traditionally has been guided by a rule that exceeds the virtue of uttering the truth for truth’s sake, and that is ‘as far as possible do no harm.’”B.Directions: Translate the following Chinese sentences into English on the Answer Sheet. (10 points, 2 points each))47.虽然不想参加宴会,他还是接受了邀请。
昆明理工大学826物流工程学2013--2019年考研真题

昆明理工大学2013年硕士研究生招生入学考试试题(A卷)考试科目代码:825 考试科目名称:物流工程学试题适用招生专业:物流工程与管理(0823Z1)考生答题须知1.所有题目(包括填空、选择、图表等类型题目)答题答案必须做在考点发给的答题纸上,做在本试题册上无效。
请考生务必在答题纸上写清题号。
2.评卷时不评阅本试题册,答题如有做在本试题册上而影响成绩的,后果由考生自己负责。
3.答题时一律使用蓝、黑色墨水笔或圆珠笔作答(画图可用铅笔),用其它笔答题不给分。
4.答题时不准使用涂改液等具有明显标记的涂改用品。
一、名词解释(每小题4分,共20分)1、第三方物流2、多式联运3、RFID4、Hub-and-spoke网络5、VRP问题二、简答题(每小题8分,共64分)1、库存管理中ABC分析法的一般步骤是什么?2、谈谈你对第四方物流的理解。
3、什么是物流效益背反现象,请举例说明。
4、社会物流系统与企业物流系统有何区别?5、简述物流节点的功能和类型。
6、常见的物流信息技术有哪些?物流信息系统的基本功能有哪些?7、什么是供应链管理?为什么会出现牛鞭效应?8、物流需求预测的常用方法有哪三类?各自的含义是什么?三、论述、分析题(30分)1、简析电子商务企业发展现状,对支撑电子商务企业发展的物流环节,目前电子商务企业采用了自建和外包两种不同模式,你认为哪种方式更合理,请进行相关论述。
(20分)2、分析流通加工与生产加工的区别,列举三类典型的流通加工。
(10分)四、计算题(36分)1、某汽车制造企业,每年需要采购某零件10000只,购买价格为每只16元,每次订购成本为100元,每只零件的保管成本为8元,求该零件的订货时间间隔和经济订购批量。
(6分)2、某物流企业计划在某区域内设置配送中心,为区域范围内的各个需求点提供配送服务,区域内各需求点的坐标和运费率如下表所示,求在该区域内选址最佳位置P的坐标。
(6分)表1 需求点分布情况和运费率表坐标位置需求地需求量运费率x yA1 A2 A3 A4 A5500030001800320045000.30.50.90.60.3101530403015504040203、我国货运量与进出口总额的统计数据,如表2所示,预测当我国进出口总额达到2000 0亿美元时的货运量。
2020年云南昆明理工大学物理化学考研真题A卷

2020年云南昆明理工大学物理化学考研真题A 卷一、选择题。
请在答卷上填入正确答案代号。
(本大题共15小题, 每小题2分, 共30分)1.关于热力学第二定律,下列说法不.正确的是 ( )。
(A) 第二类永动机是不可能制造出来的;(B) 把热从低温物体传到高温物体,不引起其它变化是不可能的;(C) 一切实际过程都是热力学不可逆过程;(D) 功可以全部转化为热,但热一定不能全部转化为功。
2.p-V 图上(右图),1mol 单原子理想气体,由状态A 变到状态B ,错误的是( )。
(A) Q U =∆ ; (B) Q H =∆ ;(C) 0<∆S ; (D) 0<∆U 。
3. 某物质溶于互不相溶的两液相α和β中,该物质在α相以A 形式存在,在β相以A 2形式存在,则等温等压下两相平衡时:( )(A ))A ()A (2βαμ=μ ;(B ))A (2)A (2βαμ=μ;(C ))A ()A (22βαμ=μ;(D )a a A A αβ=2。
4. 已知Cu 的相对原子质量为64,用0.5法拉第电量可从CuSO 4溶液中沉淀出Cu ( )。
(A) 16g (B) 32g (C) 64g (D) 128g5. 体系从状态A 变化到状态B ,有两条途径:I 为可逆途径,II 为不可逆途径。
以下关系中不.正确的是 ( )。
(A) I II S S ∆=∆ ; (B) B II I A ()Q S T δ∆=⎰ ; (C) B B I II A A ()()Q Q T T δδ=∑∑ ; (D )B I I A ()Q S T δ∆=⎰ 。
6. 已知298 K 及100 kPa 压力下, 0.5 mol C 2H 4(g) 完全燃烧时放出的热为705 kJ , C 2H 4(g)完全燃烧时的标准摩尔热力学能变化值为:( )。
(A)-707.5 kJ ·mol -1; (B)-1415.0 kJ ·mol -1; (C)-1405.0 kJ ·mol -1; (D)-702.5 kJ ·mol -1。
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昆明理工大学2020年硕士研究生招生入学考试试题(A卷) 考试科目代码:826 考试科目名称:物流工程学
考生答题须知
1.所有题目(包括填空、选择、图表等类型题目)答题答案必须做在考点发给的答题纸上,做在本试题册上无效。
请考生务必在答题纸上写清题号。
2.评卷时不评阅本试题册,答题如有做在本试题册上而影响成绩的,后果由考生自己负责。
3.答题时一律使用蓝、黑色墨水笔或圆珠笔作答(画图可用铅笔),用其它笔答题不给分。
4.答题时不准使用涂改液等具有明显标记的涂改用品。
第 1 页共2页。