模块一、二综合练习题答案
模块一二综合练习题
模块一、二综合练习题答案一．判断题1、计算车外圆的切削速度时，应按照已加工表面的直径数值进行计算。
（×）2、刀具前角的大小，可以是正值，也可以是负值。
（√）3、刀具的主偏角具有影响切削力、刀尖强度、刀具散热的作用。
（√）4、金属的切削过程也是形成切屑和已加工表面的过程。
（√）5、精加工相对于粗加工而言，刀具应选择较大的前角和较小的后角。
（×）6、刃倾角的作用是控制切屑的流动方向并影响刀头的强度，所以粗加工应选负值。
（√）7、切削加工中，常见机床的主运动一般只有一个。
（√）8、工艺系统刚性较差时（如车削细长轴），刀具应选用较大的主偏角。
（√）9、粗车主要目的是切除工件上的大部分余量，精车的主要目的是保证工件的精度和减小表面粗糙度Ra值。
（√）10、车削加工不宜加工硬度在30HRC以上的淬火钢。
（√）11、90度车刀（偏刀），主要用来车削工件的外圆、端面和台阶。
（√）12、一夹一顶装夹，适用于工序较多、精度较高的工件。
（×）13、两顶尖装夹方式适用于装夹重型轴类零件。
（×）14、两顶尖装夹粗车工件，由于支承点时顶尖，接触面积小，不能承受较大切削力，不宜使用。
（√）15、车削内孔时排屑和冷却较困难。
（√）16、圆柱孔的测量比外圆测量困难。
（√）17、车削套类零件的刀柄受孔径及孔深的影响，刚性较差。
（√）18、麻花钻可以在实心材料上加工内孔，不能用来扩孔。
（×）19、车孔时的切削用量应比车外圆低一些。
（√）20、细长轴通常用一夹一顶或两顶尖装夹的方法来加工。
（√）21、为了防止和减少薄壁零件工件加工时产生变形，加工时应分粗、精车。
（√）22、车削薄壁零件时，尽量不用径向夹紧法，最好用轴向夹紧法。
（√）23、车削短小套类零件时，为保证内、外圆轴线的同轴度，可用一次装夹车削。
（√）24、在立式铣床上不能加工键槽。
（×）25、卧式铣床主轴的中心轴线与工作台面垂直。
汽车故障检测与诊断(第二版)习题册答案
关，才能拆装跨接线缆。 （4）音响的扬声器应尽量远离计算机，以免对计算机工作产生不良影响。 （5）在打开点火开关，发动机没有启动时，警告灯亮为正常，启动发动机
后灯应熄灭，若灯仍亮，则表示计算机诊断系统已检测到系统中的故障或异常情 况。
（6）计算机、传感器必须防潮，不允许将计算机或传感器的密封装置损坏， 更不允许用水冲洗计算机和传感器。
3）曲轴箱通风装置进风过多，应清洗曲轴箱通风装置。 4）气门杆与气门导管的间隙过大，气门油封损坏，应检调配气机构。 另外，若发动机装配废气涡轮增压器，增压器轴可能漏油。诊断方法是检查 涡轮轴的径向和轴向间隙是否过大。制动系空气压缩机润滑油多由发动机提供， 空压机可能是机油消耗源，检查方法是检查油水分离器或贮气管中是否机油明显 较多。
课题七 发动机冷却系故障检测与诊断
一、填空题 1.温控开关 2.升高
二、判断题 1. × 2. √
三、选择题 1.B. 2.D.
四、简答题 答： 主要原因有冷却系内部渗漏，冷却系外部渗漏和散热器盖开启压力过 低。通常通过目测检查外部有没有漏水的痕迹，确定有无外部渗漏；通过 检查机油是否发白（乳化）或在发动机水温正常时排气是否冒白烟确定内 部是否渗漏。 若无内外渗漏，则让发动机冷机起动，在升温过程中，观察在水温表
3）清洁点火模块。 无分电器的直接点火系统的发动机，其点火正时的调整应检查正时带或链条 的正时标记是否对齐。 五、综合练习题 答： 1）火花塞潮湿。清洗、烘干或更换火花塞。 2）点火器故障。检查或更换点火器。 3）点火信号发生器性能不良。检修或更换点火信号发生器。 4)点火开关损坏。更换点火开关。 5)点火线圈断路、短路。更换点火线圈。 6)线路连接不良或搭铁。检修线路。 7)保险丝松动或熔断。紧固或更换保险丝。 8)分缸线漏电或内部断裂。更换分缸线。 9)中央高压线绝缘性能下降，漏电。更换中央高压线。
《电机拖动与控制》(徐建俊 居海清)教学资源-模块习题答案 模块一练习答案
模块一练习答案:1.简述三相异步电动机的主要结构及各部分的作用。
答：三相异步电动机主要有定子和转子两大部分组成。
定子是由机座、定子铁心和定子绕组三部分组成，转子是电动机的转动部分，由转子铁心、转子绕组及转轴等部件组成。
机座的作用主要是为了固定与支撑定子铁心，必须具备足够的机械强度和刚度。
定子铁心是异步电动机磁路的一部分，铁心内圆上冲有均匀分布的槽，用以嵌放定子绕组。
定子绕组是三相对称绕组，当通入三相交流电时，能产生旋转磁场，并与转子绕组相互作用，实现能量的转换与传递。
转子铁心的作用和定子铁心的作用相同。
三相异步电动机按转子绕组的结构可分为绕线式转子和鼠笼式转子两种。
2.简述三相异步电动机的工作原理。
答：定子上装有对称三相绕组，当定子接通三相电源后，即在定、转子之间的气隙内建立了一同步转速为n1的旋转磁场。
磁场旋转时将切割转子导体，根据电磁感应定律可知，在转子导体中将产生感应电势，由于转子绕组是闭合的，导体中有电流，电流方向与电势相同。
载流导体在磁场中要受到电磁力从而产生电磁转矩，于是转子就跟着旋转磁场逆时针方向转动。
3.旋转磁场的形成条件是什么?转动方向是由什么决定的?如何使三相异步电机反转?答: 旋转磁场的形成条件是三相对称的电流通入三相对称的定子绕组（1）旋转磁场的旋转方向是由通入三相绕组中的电流的相序决定的。
（2）改变三相绕组中的电流的相序即可使三相民步电动机反转。
4.简要阐述三相异步电机的拆装步骤？答：三相异步电机的拆装步骤是1．拆除电动机的所有引线。
2．拆卸皮带轮或联轴器。
先将皮带轮或联轴器上的固定螺丝钉或销子松脱或取下，再用专用工具“拉马”转动丝杠，把皮带轮或联轴器慢慢拉出。
3．拆卸风扇或风罩。
拆卸皮带轮后，就可把风罩卸下来。
然后取下风扇上定位螺栓，用锤子轻敲风扇四周，旋卸下来或从轴上顺槽拔出，卸下风扇。
4．拆卸轴承盖和端盖。
一般小型电动机都只拆风扇一侧的端盖。
5．抽出转子。
对于鼠鼠笼式转子，可直接从定子腔中抽出即可。
管理信息系统期末综合练习二
管理信息系统期末综合练习二一、单项选择题1．以下说法不正确的选项是〔〕。
A．管理信息系统是一种辅助决策的工具B．管理信息系统是一个“人—机〞系统C．管理信息系统可以代替人进展决策D．管理科学是管理信息系统的重要学科根底之一2．管理信息系统的穿插构造是指管理信息系统的〔〕。
A．网络构造B．管理职能构造C．组织机构D．功能构造3．管理活动的高、中、基3个层次分别对应着3种类型的决策过程，即〔〕。
A．非构造化决策、构造化决策和半构造化决策B．非构造化决策、半构造化决策和构造化决策C．非构造化决策、半构造化决策和一般性决策D．非构造化决策、过程性决策和构造化决策4.系统的存在需要3个根本条件，即：〔〕。
A．输入、反应、处理B．时间、地点、事件C．方案、控制、执行D．要素、构造、功能5．B/S是一种重要的网络计算机模式，其含义是〔〕。
A．客户/效劳器模式B．文件/效劳器模式C．浏览器/效劳器模式D．分时/共享模式6．C/S是一种重要的网络计算模式，其含义是：〔〕。
A．文件/效劳器模式B．分时/共享模式C．客户/效劳器模式D．浏览器/效劳器模式7．构造化分析与设计是信息系统开发时常用的方法，按其生命周期特征，它应属于〔〕。
A．螺旋模型B．喷泉模型C．混合模型D．瀑布模型8．构造化开发方法系统分析阶段的正式文档是〔〕。
A．可行性分析报告B．系统分析报告C．用户操作手册D．系统设计报告9．以下准确概括构造化分析方法核心思想的是〔〕。
A．由分解到抽象B．自下而上，由抽象到具体C．自顶向下，由粗到细，逐步求精D．自顶向下，由细到粗，逐步抽象10．总体规划阶段的主要工作不包括〔〕。
A．分析和确定系统目标B．分析子系统的组成及其根本功能C．建立系统的逻辑模型D．进展系统的可行性研究11．从概念上看，管理信息系统的四大部件是( )。
A．信息源、信息处理器、信息分派和信息管理者B．信息源、信息加工器、信息分派和信息管理者C．信息源、信息加工器、信息用户和信息管理者D．信息源、信息处理器、信息用户和信息管理者12．以下工作中，不属于系统分析阶段的是〔〕。
牛津高中英语模块一UNIT2教材答案
牛津高中英语模块一UNIT2教材答案篇一：牛津高中英语模块一Unit2 练习和检测试题与答案牛津高中英语模块一Unit2 练习和检测试题与答案一、单项选择1. ______ two exams to worry about, I have to work really hard this weekend.A. WithB. BesidesC. As forD. Because of2. ______John has arrived, we can begin.A. IfB. As soon asC. Now thatD. Now this3. The students shared their experiences through their website, in the hopemore teenagers would help pass down their local culture.A. whichB. thatC. whereD. as4．He’s got himself into a dangerous situation________ he is likely to lose control over the plane.A. whereB. whichC. whileD why5．Nobody noticed the thief slip into the house because the lights happened to _______.A. be put up.B. give inC. be turned onD. go out6 .We asked teacher to explain _________.A. us the word.B. us of the word.C. the word to us.D. the word for us.7．The children were left __________ of a neighbor when they went on holiday.A. in chargeB. in the chargeC. under chargeD. at charge.8．. ----He has turned on all the lights in thebuildin g. That’s waste of electricity.---- It’s not his____. He just did what he was told to.A. mistake.B. wrongC. faultD.shorting.9. The teacher came in, ________ by some students.A. followedB. followingC. was followedD. to follow10. Don’t punish him again. ________, he is only a small child.A. After allB. In allC. First of allD. Above all11.★I have two bikes; _______ are broken.A. all of themB. both of themC. all of whichD. both of which12. We need water and air, _________ we can’t live.A. with whichB. with whomC. without which D without whom13. The reason ____ he explained was ______ he was ill and unable to go to school.A. why; thatB. why; becauseC. which; becauseD. which; that14.★ Premier Wen Jiabao said the suggestions on improving the quality of milk industry are supposed to careful consideration.A. determineB. decideC. deserveD. desire15.★ difficulties we may e across, we’ll help oneanother to overe them.A. WhereverB. WheneverC. HoweverD.Whatever二、完型填空★Are you a man or a mouse? When people ask this question they want to know 16 you think you are a 17 person or a coward(懦夫). But you will never really know the answer to this question 18 you are tested in real life. Some people19 they are brave but when they e face to face with real 20 , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like 21.Lenny had always thought of himself as a 22 person. He got worried before examinations. He worried about his job and his health. All he wanted in life was to be safe and healthy. 23 , on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny went to the river to see what was happening. He saw a woman in the 24 water. Lenny did not feel afraid. He kept very 25 and did a very courageous thing. He jumped into Potomac, 26 to the woman, and kept her head 27 the water. Seventy-eight people died that day. Thanks to Lenny, it was not 28 . When you are in a very 29 situation and feel afraid, the bodyautomatically（自动地）produces a chemical in the blood. This chemical is called adrenalin(肾上激素). 30 adrenalin in the blood system, you actually feel stronger and stronger and are 31 to fight or run away. However, when you are absolutely terrified, the body can produce too much adrenalin. When this 32 the muscles bee very hard and you find you 33 move at all. You are paralyzed(使无能为力) with fear. This is 34 when we are very frightened, we sometimes say we are ‘petrified’, this word es from a Greek word‘petros’, which means ‘stone’. We are 35 frightened that we bee stonelike.16. A. howB. neitherC. whether D. either17. A. braveB. realC. hard D. certain18. A. whenB. untilC. after D. once19. A. realize B. findC. think D. agree20. A. lifeB. question C. mouse D. danger21. A. soldiers B. miceC. heroes(英雄)D. cowards22. A. useful B. braveC. nervous D. terrible23. A. SoB. ThereforeC. ThenD. Actually24. A. freshB. poisonous C. warm D. ice-cold25. A. nervous B. calmC. frightened D. excited26. A. wentB. helpedC. spoke D. swam27. A. inB. underC. above D. from28. A. an accident B. a mistake C. seventy-eightD. seventy-nine29. A. dangerous B. fortable C. different D.favorable30. A. WithB. Without C. For D. Like31. A. afraidB. unableC. ready D. anxious32. A. getsB. disappears C. happens D. goes33. A. needn’t B. can’tC. mustn’t D. shouldn’t34. A. where B. howC. because D. why35. A. reallyB. veryC. such D. so三、阅读理解(A)Six people were traveling in a partment (包厢) on a train. Five of them were quiet and well behaved(举止文明), but the sixth was a rude young man who was causing a lot of trouble to the other passengers.At last this young man got out of the station with his two heavy bags. None of the other passengers helped him, but one of them waited until the rude young man was very far away, and then opened the window to him, “ You left something behind in the partment!” Then he closed the window again.The young man turned around and hurried back with his two bags. He was very tired when he arrived, but he shouted through the window, “ What did I leave behind?”As the train began to move again, the passenger who had called him back opened the window and said, “ A very bad impression!”36. Of the six passengers in the partment ___.A. five of them were rude and badly behavedB. one of them was rude and badly behavedC. five were always causing trouble on the trainD. only one was quiet and well behaved37. When the rude young man got off the train ___.A. he left his two bags behindB. he was thrown out through the windowC. the other five pas sengers didn’t help himD. one of the other passengers opened the window for him38. The young man hurried back because ___.A. he found he had left something on the trainB. he found he had left his bags on the trainC. he heard a passenger calling him by his nameD. he heard a passenger shouting to him that he hadleft something behind39. The passenger who had called him back wantedA. to punish him for his bad behaviorB. to have a word with him about his behaviorC. to help him with his behaviorD. to return him the things he had left on the train(B)A thief entered the bedroom of the 30th President of the United States, who met him and helped himescape punishment.The event happened in the early morning hours in oneof the first days when Calvin Coolidge came into power, late in August, 1923. He and his family were living in the same third-floor suite(套房) at the Willard Hotelin Washington that had occupied several years before. The former President’s wife was still living in the White House.Coolidge awoke to see a stranger go through his clothes, remove a wallet and a watch chain.Coolidge spoke, “ I wish you wouldn’t take that.”The thief, gaining his voice, said, “ Why?”“ I don’t mean the watch and chain, only thecharm(表坠). Take it near the window and read what is impressed on its back,” the president said.The thief read, “ Presented to Calvin Coolidge.”“ Are you President Coolidge?” he asked.The president answered, “ Yes, and the House of Representatives（众议院）gave me the watch charm. I’m fond of it. It would do you no good. You want money. Let’s talk this over.”Holding up the wallet, the young man said in a low voice, “ I’ll take this and leave everything else.”Coolidge, knowing there was 80 dollars in it, persuaded the young man to sit down and talk. He told the President he and his college roommate had overspent during their holiday and did not have enough money to pay their hotel bill.Coolidge added up the roommate and two rail tickets back to the college. Then he counted out 32 dollars and said it was a loan(借款).He then told the young man, “ There is a guard in the corridor.” The young man nodded and left through the same window as he had entered.40. What caused the thief to meet the PresidentA. He knew the president had lots of money.B. He knew the president lived in the suite.C. He wanted to be a rich businessman.D. He wanted to steal some money.41. Why did Calvin Coolidge live at the Willard Hotel in those days?A. Because the former president was still in the White House.B. Becaus e the former First Lady hadn’t left the White House.C. Because the First lady liked to live there.D. Because he liked there.42. Coolidge counted out 32 dollars______.A. in order not to be killed by the thiefB. in order to be out of dangerC. so as to help the young student overe his difficulty.D. because he had no more money.43. The young man’s roommate went back to college_____.A. by airB. by waterC. by busD. by train44. Which of the following might happen afterwards?A. The young man repaid the 32 dollars.B. The thief was put into prison.C. The President told many reporters the thief’s name.D. The President ordered the young man to repay the money.四、单词拼写45.How much did the bookstore owner c_______ you?46. Teaching the children with disabilities is ac______________ job.47.The only_________________(解释) for his behavior is that he’s mad.48. No one can go u________________ if he breaks the law.49．I _____________(真诚地)hope that you will be successful next time.50. This tool is ______________（贵重的)for doing electrical repairs.51．Students are f___________ to smoke in school.52. He ____________(后悔)that he had been careless.53. Where are you planning to spend your v__________ next summer..54.They are having a heated a_________(争论) over whether smoking is badfor the health.篇二：牛津高中英语模块1Unit_2_基础知识训练模块1Unit 2 基础知识训练（一）单项填空：1. ---- Where is Frank?---- He is ______ his car painted in the garage.A. takingB. doingC. havingD. giving2. ---- If you like I can do some shopping for you.---- That’s a very kind ________.A. offerB. serviceC. pointD. suggestion3. ---- I feel like ________ for a walk. Will you go with me?---- If Mary goes, _________.A. to go; I alsoB. to go; so do IC. going; so will ID. going; so do I4. ---- Who to ld you about Dad’s illness?---- The doctor in _________.A. connectionB. turnC. publicD. charge5. We insisted that the sick children ________ to hospital at once.A. must be sentB. be sentC. will be sentD. is sent6. Does this meal cost $50? I __________ something far better than this!A. preferB. expectC. suggestD. suppose7. Mary wanted to travel around the world all by herself, but her parents did not ________ her todo so.A. forbidB. allowC. followD. ask8. _________ you’ve got a chance, you might as well make full use of it.A. Now thatB. AfterC. AlthoughD. As soon as9. You are not _______ to take the newspapers and magazines out of the reading room.A. hopedB. imaginedC. supposedD. wished10. Mr. Lee suggested _______ to there instead of________ by bus.A. cycling; goingB. cycling; goC. to cycle; goingD. cycle; go（二）单词拼写：1. Can you take out the ___________ when you go off to work? (垃圾)2. Such ____________ is unacceptable in public. (行为)3. Various ______________ for these changes in climate have been offered by scientists all overthe world. (解释)4. In the final ______________, Harry expressed his love to Julia. (场景)5. Teachers in this school are given plete _______ in their choice of teaching materials. (自由)6. I think we all learned a _____________ lesson today. (宝贵的)7. After a brief __________ of silence, the students started their discussion. (时期、时段)8. She drew back the _________ to let in the light,and then sat down to enjoy a cup of tea. (窗帘)9. Students at our school generally have the highest test __________ in the city. (分数)10. In this country, women are ______________ to enter the temple. (禁止)（三）词组填空:1. Generally speaking, a lot of successful people_________________ themselves.2. Who do you think will be ______________ the pany when Mr. Luck retires this June?3. With Tom away and Jenny ill, we're going to have to work ________________ to get this taskfinished on time.4. I understand him much better ______________ I’ve seen his living conditions.5. Mike is impossible! He treated me _______________ I was a plete stranger!6. I’m sorry, but you ________________ hand in your paper last Monday.1. I had a very bad day at the office, so tonight I don’t __________________ doing anything.2. We went to bed, but Julie and Kate____________________ talking and playing cards.3. She ______________ following me all the way here, though I told her not to.4. Be careful not to ______________ those papers on the desk.5. What shall we _____________ the dog if we go off on vacation?6. Suddenly all the lights ______________ and it was pitch dark.（四）综合填空：1. ---- What’s up, honey? You don’t look happy.---- Sorry, nothing serious. I just had an a______________ with my boss this afternoon.2. ---- Why didn’t you hand in your home work, Jeffery?---- I’m sorry, sir. But it’s not myf___________. My dog ate it. 3. ---- Copy the text ten times! Every one of you! ---- But sir, it's unfair to p___________ a whole class for the actions of one or two students.4. ---- I give up! Physics is simply driving mec__________!---- Why don’t you ask your teacher for help?5. ---- What’s wrong with Bob these days?---- I think he is still u__________ that we forgot his birthday.6. ---- How are you paying? By credit card?---- No, in c__________.7. ---- Are you close to your parents?---- Yes. I have a good r____________ with them.8. ---- We still have a s_________ ticket fortonight’s game.---- Then can I go with you?9. ---- May I speak to Dr. Henderson please?---- I’m sorry, but Dr. Henderso n is away onv__________.10. ---- What a m___________! Can’t you clean up a bit?---- Sorry. I’m too busy with my exam this week.（五）短文填空：the brothers had to take Spot to the vet. They spent a whole day with the dog so they did not have time to clean the house.模块1 Unit 2KEYS（一）单项填空：1-5: CACDB 6-10: BBACA（二）单词拼写：1. garbage2. behaviour6. valuable7. period（三）词组填空:A1. are hard on2. in charge of6. were supposed toB1. feel like2. stayed up6. went out（四）综合填空：1. argument2. fault6. cash7. relationship（五）短文填空：1. vacation2. charge6. upset7. trust 3. explanations8. curtains 3. like crazy 3. insisted on 3. punish8. spare3. surprise 8. explain4. scene9. scores4. now that 4. mix up4. crazy9. vacation 4. mess9. rude5. freedom 10. forbidden 5. as though 5. do with 5. upset 10. mess 5. mad/angry 10. hard篇三：牛津高中英语模块一Unit_2_Home_aloneHome aloneAct oneMom and Dad arrive back from vacation a day is dark when Mom and Dad Dad: It’s so nice to be home!Mom: Yes, I Suddenly a door opens and a soccer ball walking very slowly.Eric: Mom! Dad! You’re back early! (looking around room, sounding e home until tomorrow!The dog slowly walks to Mom and Dad.Mom: (Bending to touch dog) Eric, he’s so tired and hungry! (looking at table) The money for dog food , but Spot looks like he is ! What did you Dad: And look at this room— garbage all over the place! Where is your brother? (shouting angrily) Daniel! Daniel: (running into room) Mom, Dad, I canDad opens the curtains and light es into the room. The room is, with pizza boxes on the floor and dirty dishes in the sink. In the corner, there is a garbage canpaper.Mom and Dad both turn towards Daniel.Dad: (sounding very angry) listen to me, young man----we an I don’t know the reason Mom: Daniel, we thought you were an adult, a person ...Dad: How can we trust you any more? We won’t such behavior in our family!Daniel: ( shouting) Stop me. I’m still a! Why is everything always my Daniel runs into his bedroom and the door angrily. Mom and Dad look at.Act two, scene oneDaniel and Eric’s bedroom. Eric sits and looksDaniel: They never even myself. I hate them!Eric: You don’t hate them. I can tell them we had . Then they won’t be madDaniel: No, don’t tell them anything. Anyhow they didn’t me. They don’t. Let them th ink what they want.Eric: But Daniel, if they knew that Spot was sick and we used the money to him to the Daniel: And that we spent all of yesterdayhouse --- but no, Eric, why didn’t they ask me what happenedAct two, scene twoMom: Do you think we were Daniel? Perhaps there is a why the house is a mess…Dad: Maybe, but he has been sohim or he won’t Mom: Oh, why does this have to be so?End of act two.Project ---Growing pains。
练习题、基础知识模块1
基础知识、模块一一、单选：1、职业是指从业人员为获取主要（）来源所从事的社会工作类别。
A生产B生活C经济D经营答案及解析：B。
基础知识课本P003，职业的含义。
2、《中华人民共和国职业分类大典》将我国职业划分为（）大类。
A六B七C八D九答案及解析：C。
基础知识课本P004，职业类型划分。
3、职业资格是对从事某一职业所必备的知识、（）和能力的基本要求。
A品德B技术 C 素质D技能答案及解析：D。
基础知识课本P005，职业资格定义。
4、职业道德基本规范包括“爱岗敬业、诚实守信、办事公道、（）、奉献社会”A 依法办事B公平公正C服务群众D热爱祖国答案及解析：C。
基础知识课本P008，职业道德基本规范。
5、消防行业职业道德是消防行业从业人员在从事消防职业活动中，从思想到工作行为所必须遵守的（）和消防行业职业守则。
A法律法规B单位规章C道德标准D职业道德规范答案及解析：D。
基础知识课本P009，消防行业职业道德的含义。
6、专研业务是指在消防从业中刻苦专研，深入探究并掌握（）发生、发展的规律，以及防火、灭火的知识和技能。
A事故B事情C火灾D任务答案及解析：C。
基础知识课本P014，钻研业务的含义。
二、多选：1、职业的特征包括（）A目的性B社会性C稳定性D规范性E群体性答案及解析：ABCDE。
基础知识课本P003，职业的特征。
2、消防设施操作员职业，从事建（构）筑物消防设施（）等工作的人员。
A运行B操作C维修D保养E检测答案及解析：ABCDE。
基础知识课本P005，消防设施操作员职业定义。
3、消防设施操作员职业，主要工作任务有（）A值守消防控制室B操作、维修、保养火灾自动报警、自动灭火系统等消防设施C安装、调试火灾自动报警、自动灭火系统等消防设施D检测火灾自动报警、自动灭火系统等消防设施。
答案及解析：ABD。
基础知识课本P005，消防设施操作员职业，主要工作任务有三项：一是值守消防控制室；二是操作、维修、保养火灾自动报警、自动灭火系统等消防设施；三是检测火灾自动报警、自动灭火系统等消防设施。
小学四年级英语下册第一模块练习题(外研版)及答案
小学四年级英语下册第一模块练习题(外研版) 一、选出下列不同类的单词：（20分）（）1、A.nice B.clever C.door （）2、A.teacher B.pupil C.shy（）3、A.naughty B.curl C. cute （）4、A.big B.very C.good（）5、A.mother B.friend C.little （）6、A.is B. this C.these （）7、A.he B.she C.my （）8、A.boy B.girl C. cool（）9、A.tall B.look C.is （）10、A.my B.she C.his二、翻译下列短语：（30分）1、我的朋友们2、一点害羞3、一个聪明的小学生4、一位友善的老师5、一只非常淘气的鸟儿6、我的大兄弟7、盼盼的小妹妹 8、一个小女孩9、一小绺鬈发 10、一个非常友善的男孩三、选择填空：（20分）（）1、She is . A.a very nice B.very nice（）2、She is . A.a bit shy B.a bit nice（）3、He is . A.a clever B.clever（）4、Parrot is . A.a very naughty B.very naughty（）5、 are my friends. A.These B.This（）6、 is Maomao. A. These B.This（）7、 is my big brother. A. These B.This（）8、He is . A.a cool B.cool（）9、This is sister. A.little my B.my little（）10、My mother is . A.very tall B.a very tall四、翻译下列句子：（20分）1、这是毛毛的父亲。
2、这是我的小妹妹。
她有点害羞。
外研 五上英语 一、二模块练习题
五年级英语Module1-2练习题一、写出下列动词的过去式形式。
do---__________ meet---__________ drop---__________ buy---___________ go---__________ come---__________ have---__________ run---___________ is--- __________ visit--- __________ lose---__________ eat---___________二、选择合适的词填空。
1. Did you_____________ (go/went) home yesterday?2. Did you_____________ (watch/watched) TV last night?3. Did you_____________ (do/did) your homework last Saturday?4. Did you_____________ (visit/visited) your grandparents last Sunday?5. Did you ____________ (see/saw) an apple on the table?三、选择合适的词填空。
---- At the supermarket.2. My father went to Shanghai__________ plane yesterday.3. These presents are____________ you. Please take them to your home.4. Lily is _____________ England. She wants to make friends in China.5. They live ___________ Beijing.6. ----____________ did you eat last night?---- Rice and fish.7. I often play football__________ my friends after school.四、根据句意用括号内所给单词的适当形式填空。
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模块一、二综合练习题答案一．判断题1、计算车外圆的切削速度时，应按照已加工表面的直径数值进行计算。
（×）2、刀具前角的大小，可以是正值，也可以是负值。
（√）3、刀具的主偏角具有影响切削力、刀尖强度、刀具散热的作用。
（√）4、金属的切削过程也是形成切屑和已加工表面的过程。
（√）5、精加工相对于粗加工而言，刀具应选择较大的前角和较小的后角。
（×）6、刃倾角的作用是控制切屑的流动方向并影响刀头的强度，所以粗加工应选负值。
（√）7、切削加工中，常见机床的主运动一般只有一个。
（√）8、工艺系统刚性较差时（如车削细长轴），刀具应选用较大的主偏角。
（√）9、粗车主要目的是切除工件上的大部分余量，精车的主要目的是保证工件的精度和减小表面粗糙度Ra值。
（√）10、车削加工不宜加工硬度在30HRC以上的淬火钢。
（√）11、90度车刀（偏刀），主要用来车削工件的外圆、端面和台阶。
（√）12、一夹一顶装夹，适用于工序较多、精度较高的工件。
（×）13、两顶尖装夹方式适用于装夹重型轴类零件。
（×）14、两顶尖装夹粗车工件，由于支承点时顶尖，接触面积小，不能承受较大切削力，不宜使用。
（√）15、车削内孔时排屑和冷却较困难。
（√）16、圆柱孔的测量比外圆测量困难。
（√）17、车削套类零件的刀柄受孔径及孔深的影响，刚性较差。
（√）18、麻花钻可以在实心材料上加工内孔，不能用来扩孔。
（×）19、车孔时的切削用量应比车外圆低一些。
（√）20、细长轴通常用一夹一顶或两顶尖装夹的方法来加工。
（√）21、为了防止和减少薄壁零件工件加工时产生变形，加工时应分粗、精车。
（√）22、车削薄壁零件时，尽量不用径向夹紧法，最好用轴向夹紧法。
（√）23、车削短小套类零件时，为保证内、外圆轴线的同轴度，可用一次装夹车削。
（√）24、在立式铣床上不能加工键槽。
（×）25、卧式铣床主轴的中心轴线与工作台面垂直。
（×）26、精铣时一般选用较高的切削速度、较小的进给量和切削深度。
（√）27、在板块工件上铣直槽，一般用三面刃铣刀。
（√）28、在轴上的平键槽，一般在立铣床上用键槽铣刀加工。
（√）29、插床也是利用工件和刀具作相对直线往复运动来切削加工的，它又称为立式刨床。
（√）30、刨削加工常用在大批大量的生产中。
（×）31、现在很多应用场合，铣床常被用来代替刨床加工。
（√）32、在镗床上镗孔可以保证箱体类零件上孔系间的位置精度。
（√）35、磨削外圆时，工件的转动是主运动。
（×）36、砂轮的磨粒号越大，磨粒尺寸也越大。
（×）37、砂轮是由磨粒、结合剂和空隙组成的多孔物体。
（√）38、磨削实际上是一种多刃刀具的超高速切削。
（√）39、淬火后零件的后道加工，比较适宜的方法是磨削。
（√）40、工件材料的硬度越高，选用的砂轮硬度也应越高。
（×）41、有色金属的精加工适合采用磨削的方式。
（×）42、由于拉刀一次行程就能把该工序的待加工表面加工完毕，故其生产率很高。
（√）43、拉削加工能校正原有孔的位置精度。
（×）44、拉削加工由于拉刀以低速运动，所以生产率较低。
（×）45、拉削加工只有一个主运动，生产率很低，适于各种批量的生产。
（×）46、刨削和插削的主要区别是主运动的形式不同。
（×）47、拉床上只有一个主运动而无进给运动。
（√）48、镗床只能加工通孔，而不能加工盲孔。
（×）49、粗磨时应选粒度号大的磨粒，精磨时则应选细的磨粒。
（×）50、砂轮硬度选择原则是：磨硬材料应选软砂轮，磨软材料应选硬砂轮。
（√）51、砂轮的组织号越大，磨料所占的体积百分比越大。
（×）52、用前后顶尖安装轴类零件是外圆磨床上最常用的安装工件的方法。
（√）二．填空题1 、在切削运动中，按其功用可分为__主运动__和__进给运动___。
2 、切削用量三要素是指_切削速度__、_进给量__和__背吃刀量__。
3、在正交平面内测量的前刀面与基面之间的夹角称为_前角_，主后刀面与切削平面之间的夹角称为_后角_。
4、刀具角度中，前角的作用是使刀具锋利，后角的作用是减少与工件过渡表面的摩擦。
5、刀具正常磨损的主要形式有 _前刀面磨损_、_后刀面磨损_ 和_边界磨损。
6、刀具磨损一般经历初期磨损、正常磨损、急剧磨损三个阶段。
7、切削液的作用是_冷却_、_润滑_ 、__清洗__ 和_防锈_。
8、切削用量选择的顺序是：先选__背吃刀量__再选_进给量__最后选__切削速度_。
9、产生积屑瘤的条件是中温中速，加工塑性材料。
10、总切削力可分解主切削力、径向力、轴向力三个分力。
11、切削热来源于摩擦和变形。
12、刀具的刃倾角是主切削刃和基面之间的夹角。
13、加工脆性材料宜选用 YG 类硬质合金，加工塑性材料宜选用 YT 类硬质合金。
14、常见的切屑种类有带状切屑、挤裂切屑、崩碎切屑三种。
15、在钻床上钻孔时，钻头的旋转是主运动，钻头的轴向移动是进给运动；16、车削刚性较差的细长轴时，车刀主偏角应选用 90°为宜，主要是为减小径向力切削力的大小。
17、轴类零件主要用于_支持传动件_以及__传递运动和扭矩__。
18、一般轴类零件常用__45钢__作材料；中等精度而转速高的轴可用__40Cr_；高转速、重载荷条件下工作的轴可选__20CrMnTi _。
19、按结构形式不同分类，车刀可分为整体式车刀、焊接式车刀、机夹重磨式车刀和机夹可转位车刀等。
20、孔常用的加工方法有_ 钻孔 _、_铰孔 _、_镗孔_、_ 磨孔_等。
21、轴类零件上的圆柱表面一般用于支承和配合。
22、铣削时，铣刀的旋转是主运动，工件的左右、前后、上下直线移动的运动是进给运动。
23、加工中小型工件上的平面、沟槽等多用卧式铣床和立式铣床；加工大型工件上的平面、沟槽则常用龙门铣床。
24、铣削平面可选择的铣刀有圆柱铣刀、端铣刀和立铣刀。
25、铣床的主要附件有万能分度头、平口钳、回转工作台和立铣头。
26、根据圆柱铣刀旋转方向与工件移动方向之间的相互关系，铣削可分为顺铣和逆铣两种方式。
27、铣削加工精度一般为 IT7-8 ，表面粗糙度Ra值一般为—μm 。
28、B665牛头刨床其后两位数字的含义是最大加工长度650mm 。
主运动是刨刀的往复直线运动，进给运动是工件的前后、上下直线运动；龙门刨床主运动是工件的往复直线运动，进给运动是刀具的直线运动。
29、磨削加工精度可达 IT5-7 ，表面质量较好，Ra值可达。
高精度磨削时表面粗糙度Ra值可达μm 。
30、磨削的加工范围很广，可磨削零件的外圆柱面、内圆柱面、平面及成形表面。
31、M1432A型万能外圆磨床的主运动为砂轮的旋转，进给运动为工件的旋转、工件的纵向直线运动、砂轮的间歇横向进给运动。
32、在外圆磨床上磨外圆有纵磨法和横磨法两种方法，纵磨法适于精磨及磨削较长的工件，横磨法适于磨削刚性较好或有台阶的轴颈。
33、砂轮的特性取决于磨料、结合剂、粒度、硬度、组织。
砂轮常用的磨料有刚玉和硅碳化物两大类。
34、磨削是机器零件的精密加工方法，可达到很高的尺寸精度和表面质量，磨削能加工一般金属材料，又能加工难以切削的淬火材料及高硬度材料等。
35、镗削的主运动是镗刀的旋转运动36、平面磨削可分为端磨法和周磨法两种方法。
三．选择题1、扩孔钻扩孔时的背吃刀量（切削深度）等于（ D ）A扩孔前孔的直径 B扩孔钻直径的1/22、在切削平面内测量的角度有（ C ）A前角和后角 B主偏角和副偏角C刃倾角 D工作角度3、切削用量中对切削热影响最大的是（ A ）A切削速度 B进给量C切削深度 D三者都一样4、通过切削刃选定点的基面是（ A ）A垂直于主运动速度方向的平面 B与切削速度平行的平面C与加工表面相切的平面 D工件在加工位置向下的投影面5、刀具磨钝的标准是规定控制（ D ）A刀尖磨损量 B后刀面磨损高度C前刀面月牙凹的深度 D后刀面磨损宽度6、确定刀具标注角度的参考系选用的三个主要基准平面是（ C ）A切削表面、已加工表面和待加工表面 B前刀面、后刀面和副后刀面C基面、切削平面和正交平面 D水平面、切向面和轴向面7、当刀具产生了积屑瘤时，会使刀具的（ B ）A前角减小 B前角增大 C后角减小 D后角增大8、车削时，切削热最主要的散热途径是（ C ）A工件 B刀具 C切屑 D周围介质9、在正交平面内标注的角度有（ A ）A前角和后角 B主偏角和副偏角 C刃倾角 D工作角度10、切削铸铁工件时，刀具的磨损部位主要发生在（B ）A前刀面B后刀面C前、后刀面D副后刀面11、粗车钢材工件时，刀具的磨损部位主要发生在（ A ）A前刀面B后刀面C前、后刀面D副后刀面12、车削时切削热传出途径中所占比例最大的是（ C ）A刀具B工件 C切屑 D周围介质13、ISO标准规定刀具的磨钝标准是控制（ B ）A沿工件径向刀具的磨损量B后刀面上平均磨损带的宽度VBC前刀面月牙洼的深度KT D前刀面月牙洼的宽度14、对铸铁材料进行粗车，宜选用的刀具材料是（ D ）A YT15(P10)B YT5(P30)C YG3X(K01)D YG8(K20)15、下列刀具材料中，适宜制造形状复杂的机用刀具的材料是（ C ）A碳素工具钢 B人造金刚石 C高速钢 D硬质合金16、重要的轴类零件的毛坯通常应选择（ B ）。
17、曲轴的毛坯常用（ A ）A铸件 B锻件 C棒料 D管材18、调质处理一般安排在（ B ）。
A 粗加工前B 粗加工与半精加工之间C 精加工之后D 任意19、车床主轴常采用（ A ）作为毛坯。
A 45号钢模锻件B 30号钢自由锻件 C铸件 D 棒料20、变换（ C ）箱外的手柄，可以使光杠得到各种不同的转速。
A主轴箱 B溜板箱 C进给箱21、车床在装夹外形不规则的工件或较大的工件时，常用( B )。
A 三爪卡盘B 四爪卡盘C 心轴22、四爪单动卡盘的每个卡爪都可以单独在卡盘范围内作（ C ）移动。
A圆周 B轴向 C径向23、用标准铰刀铰削H7～H8、D<30mm、μm的内孔，其工艺过程一般是（ A ）。
A 钻孔→扩孔→铰孔B 钻孔→扩孔→粗铰→精铰C 钻孔→扩孔D 钻孔→铰孔24、麻花钻的两个螺旋槽表面就是( C)。
A 主后刀面B 副后刀面C 前刀面D 切削平面25、在立式钻床上钻孔，其主运动和进给运动（ B ）。
A 均由工件来完成B 均由刀具来完成C分别由工件和刀具来完成 D 分别由刀具和工件来完成26、用一夹一顶或两顶尖装夹轴类零件，如果后顶尖轴线与主轴轴线不重合，工件会产生( C )误差。
A、圆度B、跳动C、圆柱度D、同轴度27、车床的几何精度检验项目多达（ B ）种。