《智慧树知到《数控技术英语》章节测试答案.pdf》由会员分享，可在线阅读，更多相关《智慧树知到《数控技术英语》章节测试答案.pdf（12页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、智慧树知到数控技术英语章节测试答案第一章1、Numerical control is designed to control the operation of a machine tool by a series of coded instructions called a program.A:对B:错答案: 对2、A part program is stored in the form of blocks of information, and each block has the numerical data needed to manufacture a segment of the w
2、ork-piece.A:对B:错答案: 对3、Like a conventional machine tool, the NC system cant replace the manual actions of the operator either.A:对B:错答案: 错4、数字模拟转换器的英语全称是A:Analog Digital Converter B:Digital Analog ConverterC:Central Processing UnitD:Basic Revolution Unit答案: Central Processing Unit5、模拟数字转换器的英语缩写是_A:AP
3、T 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:对B:错答案: 错2、DNC is short for direct numerical control.A:对B:错答案: 对3、One of the aims of CNC systems is to replace as much of t
4、he conventional NC software with hardware as possible.A:对B:错答案: 错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 NC machines need
5、a large capital investment, we should efficiently use them.A:对B:错答案: 2、Machining is the manufacturing in which the workers can remove the excess material of a part on a machine tool.A:对B:错答案: 3、The feed is defined as the distance the cutting tool projects below the original surface of the work-piece
6、.A:对B:错答案: 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: 电蚀加工B: 电射加工C: 电火花加工D: 电解加工答案: 第四章1、Part programmers must have a solid knowledge of m
7、achining processes and know a lot of the capabilities of the machine tool.A:对B:错答案: 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:对B:错答案: 3、The required data contained in each l
8、ine of the manuscript includes all machining instructions for transferring the cutting tool from one point to the next one.A:对B:错答案: 4、Programmers should _ the particular NC machine, its capabilities, and specific codes.A: calculateB: decideC: proveD: be familiar答案: 5、The core of _, however, is prep
9、aration 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:对B:错答案: 2、Before starting
10、 a production run, its not necessary to perform a trial run.A:对B:错答案: 3、When using a tool compensation function,you should check the direction and amount of compensation.A:对B:错答案: 4、Incorrect operation may lead to _.A: serious machine troublesB: injuriesC: work-pieceD: all right答案: 5、Before operatio
11、n 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:对B:错答案: 2、Start-Up Diagnost
12、ics are a diagnostic routine that regularly operate automatically when the CNC is switched on.A:对B:错答案: 3、Off-Line Diagnostics are manual diagnostics which are intended for thorough maintenance performed by trained technicians.A:对B:错答案: 4、Numerical control machine operators set up and tend _.A: ATMB
13、: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 “柱式机床部门”.A:对B:错答案: 2、The CNC cant send messages to those users that its Windows account can access.A:对B:错答案: 3、Factory A
14、utomation (FA) is becoming the developing trend of factories.A:对B:错答案: 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 mean?A: Controller Aided DesignB: Computer
15、 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:对B:错答案: 2、During the early years of hardwired NC, built-in diagnostic tools existed.A:对B:
16、错答案: 3、The emphasis has changed from how to fix it to how it works.A:对B:错答案: 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 current 24 volts voltageC: direct current
17、 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, they cannot do the work of humans.A:对B:错答案
18、: 2、Scientists are developing an intelligent robot that can “see” and “touch” and make decisions like human beings.A:对B:错答案: 3、The technology of robots is completely the same as the NC technology in every way.A:对B:错答案: 4、PC (Proportional Controller) refers to in Chinese termA: 积分控制器B: 比例控制器C: 微分控制器D
19、: 数字控制器答案: 5、It is a very big opportunity for human; the challenge is _ it wisely.A: useB: to useC: usedD: to be used答案: 第十章1、In todays aerospace and aeronautics industry, a complete aircraft may be designed without a CAD/CAM system.A:对B:错答案: 2、Advanced CAD/CAM systems include not only solid geometr
20、y modeling capability but also NC verification programs.A:对B:错答案: 3、Generally speaking, a CAD system is an analytic tool for design.A:对B:错答案: 4、To avoid accidents, read safety guidelines and related _ carefully and operate the system correctly.A: menus B: manuals C: minusesD: manes答案: 5、If the NC machine tool is used in a wrong manner, it will _ serious injuries and machine damages.A: lead toB:result from C: due toD: responsible for答案: