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

1、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 manufacture

2、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 cant 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 Processing Unit5、

3、模擬數(shù)字轉(zhuǎn)換器的英語(yǔ)縮寫(xiě)是_A:APT B:DDTC:DDCD: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 aims of CNC systems is to re

4、place 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:CNCC:BNCD:DNC答案: DNC第三章1、As

5、 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 projects below the original surface

6、 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、Part programmers must have a so

7、lid 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:對(duì)B:錯(cuò)答案: 3、The required data c

8、ontained 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: be familiar答案: 5、The core of _

9、, 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 operation of the machine.A:對(duì)B:錯(cuò)答案:

10、 2、Before starting a production run, it's 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: injuriesC: work-pieceD: all rig

11、ht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 background diagnostics.A:對(duì)B:錯(cuò)

12、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 control machine operators se

13、t 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 cant send messages to those users that its Windows

14、 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、What does CAD m

15、ean?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 of hardwired NC

16、, 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 current 24 volts voltageB:alternating

17、current 24 volts voltageC: 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 current 24答案: 第九章1、Although the robots resemble human beings, t

18、hey 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: