智慧樹(shù)知到《數(shù)控技術(shù)英語(yǔ)》章節(jié)測(cè)試答案

1、精品資料歡迎閱讀 智慧樹(shù)知到數(shù)控技術(shù)英語(yǔ)章節(jié)測(cè)試答案 智慧樹(shù)知到數(shù)控技術(shù)英語(yǔ)章節(jié)測(cè)試答案第一章1、Numerical control is designed to control the operation of a machine tool by a series of coded instructions called a program.A:對(duì)B:錯(cuò)答案: 對(duì)2、A part program is stored in the form of blocks of information, and each block has the numerical data needed to man

2、ufacture a segment of the work-piece.A:對(duì)B:錯(cuò)答案: 對(duì)3、Like a conventional machine tool, the NC system can’t replace the manual actions of the operator either.A:對(duì)B:錯(cuò)答案: 錯(cuò)4、數(shù)字模擬轉(zhuǎn)換器的英語(yǔ)全稱(chēng)是A:Analog Digital Converter B:Digital Analog ConverterC:Central Processing UnitD:Basic Revolution Unit答案: Central P

3、rocessing Unit5、模擬數(shù)字轉(zhuǎn)換器的英語(yǔ)縮寫(xiě)是_A:APT B:DDTC:DDC  D:ADC答案: ADC第二章1、An important advance in the philosophy of NC of machine tools was the shift toward the use of controller units instead of computers in NC systems.A:對(duì)B:錯(cuò)答案: 錯(cuò)2、DNC is short for direct numerical control.A:對(duì)B:錯(cuò)答案: 對(duì)3、One of the

4、aims of CNC systems is to replace as much of the conventional NC software with hardware as possible.A:對(duì)B:錯(cuò)答案: 錯(cuò)4、The part program contains a description of the _.A:programB:geometryC:dataD:parameter答案: geometry5、Several machine tools are directly controlled by a central computer, this is the _.A:NCB

5、:CNCC:BNCD:DNC答案: DNC第三章1、As NC machines need a large capital investment, we should efficiently use them.A:對(duì)B:錯(cuò)答案: 2、Machining is the manufacturing in which the workers can remove the excess material of a part on a machine tool.A:對(duì)B:錯(cuò)答案: 3、The feed is defined as the distance the cutting tool project

6、s below the original surface of the work-piece.A:對(duì)B:錯(cuò)答案: 4、_is the relative lateral movement between the tool and the work-piece.A: The depth of cutB: The cutting speedC: The feedD: The spindle 答案: 5、EDM（Electrical Discharge Machining）refers to in Chinese termA: 電蝕加工B: 電射加工C: 電火花加工D: 電解加工答案: 第四章1、Pa

7、rt programmers must have a solid knowledge of machining processes and know a lot of the capabilities of the machine tool.A:對(duì)B:錯(cuò)答案: 2、NC part programming includes three tasks: the collection of all data needed, the calculation of the tool path and the arrangement of those given and calculated data.A:

8、對(duì)B:錯(cuò)答案: 3、The required data contained in each line of the manuscript includes all machining instructions for transferring the cutting tool from one point to the next one.A:對(duì)B:錯(cuò)答案: 4、Programmers should _ the particular NC machine, its capabilities, and specific codes.A: calculateB: decideC: proveD: b

9、e familiar答案: 5、The core of _, however, is preparation of the manuscript, its conversion into a verified tape, and subsequent editing.A: milling machineB:manual programming C: drilling machineD: computer-aided programming答案: 第五章1、Never attempt to machine a work-piece without first checking the opera

10、tion of the machine.A:對(duì)B:錯(cuò)答案: 2、Before starting a production run, its not necessary to perform a trial run.A:對(duì)B:錯(cuò)答案: 3、When using a tool compensation function,you should check the direction and amount of compensation.A:對(duì)B:錯(cuò)答案: 4、Incorrect operation may lead to _.A: serious machine troublesB: injurie

11、sC: work-pieceD: all right答案: 5、Before operation the machine, you should read the contents in the _.A: warning labelsB:textbook C: cell phoneD: computer答案: 第六章1、CNC diagnostic support at present includes four basic categories: start-up diagnostics, on-line diagnostics, off-line diagnostics and backg

12、round diagnostics.A:對(duì)B:錯(cuò)答案: 2、Start-Up Diagnostics are a diagnostic routine that regularly operate automatically when the CNC is switched on. A:對(duì)B:錯(cuò)答案: 3、Off-Line Diagnostics are manual diagnostics which are intended for thorough maintenance performed by trained technicians.A:對(duì)B:錯(cuò)答案: 4、Numerical con

13、trol machine operators set up and tend _.A: ATMB:CNC C: ATCD: ADC答案: 5、With _ based CNC machine tool controllers, maintenance and repair are no longer an issue.pcA: PCB: PIDC: FMSD: MT答案: 第七章1、“Strut-machining department” means “柱式機(jī)床部門(mén)”.A:對(duì)B:錯(cuò)答案: 2、The CNC can‘t send messages to those users th

14、at its Windows account can access.A:對(duì)B:錯(cuò)答案: 3、Factory Automation (FA) is becoming the developing trend of factories.A:對(duì)B:錯(cuò)答案: 4、By connecting _ to the personal computer and the CNC, the programmer can transfer programs from the computer to the CNC.A: a cableB:a line C: a softwareD: a hardware答案: 5、W

15、hat does CAD mean?A: Controller Aided DesignB: Computer Aided DesignC: Controller Aided DiagramD: Computer Aided Diagram答案: 第八章1、Not only most of major machine tool manufacturers but also the CNC suppliers offer a wide variety of end-user training on CNC machines.A:對(duì)B:錯(cuò)答案: 2、During the early years o

16、f hardwired NC, built-in diagnostic tools existed.A:對(duì)B:錯(cuò)答案: 3、The emphasis has changed from "how to fix it" to "how it works".A:對(duì)B:錯(cuò)答案: 4、The function of direct current regulated power supply is to input an alternating current power of 220volts, so that it can output _.A: direct

17、current 24 volts voltage  B:alternating current 24 volts voltage  C: direct current 200 volts voltageD: alternating current 200 volts voltage答案: 5、FANUC control system works under a _volts voltage.A: direct current 200B:alternating current 200 C: direct current 24D: alternating c

18、urrent 24答案: 第九章1、Although the robots resemble human beings, they cannot do the work of humans.A:對(duì)B:錯(cuò)答案: 2、Scientists are developing an intelligent robot that can “see” and “touch” and make decisions like human beings.A:對(duì)B:錯(cuò)答案: 3、The technology of robots is completely the same as the NC technology in every way.A:對(duì)B:錯(cuò)答案: 4、PC (Proportional Controller) refers to in Chinese termA: 積分控制器B: 比例控制器C: 微分控制器D: 數(shù)字控制器答案: 5、It is a very big opportunity for human; the challenge is _ it wisely.A: useB: to useC: usedD: to be used答案: 第十