智慧树知到《数控技术英语》章节测试答案

智慧树知到《数控技术英语》章节测试答案
第一章单元测试
1、Numerical control is designed to control the operation of a machine tool by a series of coded instructions called a program.。
A.正确
B.错误
正确答案：正确
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 work-piece.。
A.正确
B.错误
正确答案：正确
3、Like a conventional machine tool， the NC system can’t replace the manual actions of the operator either.。
A.正确
B.错误
正确答案：错误
4、数字模拟转换器的英语全称是
A.Analog Digital Converter
B.Digital Analog Converter
C.Central Processing Unit
D.Basic Revolution Unit
正确答案：Central Processing Unit
5、模拟数字转换器的英语缩写是（）
A.APT
B.DDT
C.DDC
D.ADC
正确答案：ADC
第二章单元测试
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.正确
B.错误
正确答案：错误
2、DNC is short for direct numerical control.。
A.正确
B.错误
正确答案：正确
3、One of the aims of CNC systems is to replace as much of the conventional NC software with hardware as possible.。
A.正确
B.错误
正确答案：错误
4、The part program contains a description of the（）.
A.program
B.geometry
C.data
D.parameter
正确答案：geometry
5、Several machine tools are directly controlled by a central computer， this is the（）.
A.NC
B.CNC
C.BNC
D.DNC
正确答案：DNC
第三章单元测试
1、As NC machines need a large capital investment， we should efficiently use them.。
A.正确
B.错误
正确答案：正确
2、Machining is the manufacturing in which the workers can remove the excess material of a part on a machine tool.。
A.正确
B.错误
正确答案：正确
3、The feed is defined as the distance the cutting tool projects below the original surface of the work-piece.。
A.正确
B.错误
正确答案：错误
4、（）is the relative lateral movement between the tool and the work-piece.
A.The depth of cut
B.The cutting speed
C.The feed
D.The spindle
正确答案：The feed
5、EDM（Electrical Discharge Machining）refers to in Chinese term。
A.电蚀加工
B.电射加工
C.电火花加工
D.电解加工
正确答案：电火花加工
第四章单元测试
1、Part programmers must have a solid knowledge of machining processes and know a lot of the capabilities of the machine tool.。
A.正确
B.错误
正确答案：正确
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.正确
B.错误
正确答案：正确
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.正确
B.错误
正确答案：错误
4、Programmers should（）the particular NC machine， its capabilities， and specific codes.
A.calculate
B.decide
C.prove
D.be familiar
正确答案：be familiar
5、The core of（）， however， is preparation of the manuscript， its conversion into a verified tape， and subsequent editing.
A.milling machine
B.manual programming
C.drilling machine
D.computer-aided programming
正确答案：manual programming
第五章单元测试
1、Never attempt to machine a work-piece without first checking the operation of the machine.。
A.正确
B.错误
正确答案：正确
2、Before starting a production run， it'；s not necessary to perform a trial run.。
A.正确
B.错误
正确答案：错误
3、When using a tool compensation function，you should check the direction and amount of compensation.。
A.正确
B.错误
正确答案：正确
4、Incorrect operation may lead to（）.
A.serious machine troubles
B.injuries
C.work-piece
D.all right
正确答案：all right
5、Before operation the machine， you should read the contents in the（）.
A.warning labels
B.textbook
C.cell phone
D.computer
正确答案：warning labels
第六章单元测试
1、CNC diagnostic support at present includes four basic categories：start-up diagnostics，
on-line diagnostics， off-line diagnostics and background diagnostics.；。
A.正确
B.错误
正确答案：错误
2、Start-Up Diagnostics are a diagnostic routine that regularly operate automatically when the CNC is switched on.。
A.正确
B.错误
正确答案：正确
3、Off-Line Diagnostics are manual diagnostics which are intended for thorough；
maintenance performed by trained technicians.。
A.正确
B.错误
正确答案：正确
4、Numerical control machine operators set up and tend（）.
A.ATM
B.CNC
C.ATC
D.ADC
正确答案：CNC
5、With（）based CNC machine tool controllers， maintenance and repair are no longer an issue.pc
A.PC
B.PID
C.FMS
D.MT
正确答案：PC
第七章单元测试
1、“Strut-machining department” means “柱式机床部门”.。
A.正确
B.错误
正确答案：正确
2、The CNC can‘t send messages to those users that its Windows account can access.。
A.正确
B.错误
正确答案：错误
3、Factory Automation（FA） is becoming the developing trend of factories.。
A.正确
B.错误
正确答案：正确
4、By connecting（）to the personal computer and the CNC， the programmer can transfer programs from the computer to the CNC.
A.a cable
B.a line
C.a software
D.a hardware
正确答案：a cable
5、What does CAD mean？
A.Controller Aided Design
B.Computer Aided Design
C.Controller Aided Diagram
D.Computer Aided Diagram
正确答案：Computer Aided Design
第八章单元测试
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.正确
B.错误
正确答案：正确
2、During the early years of hardwired NC， built-in diagnostic tools existeD.。
A.正确
B.错误
正确答案：错误
3、The emphasis has changed from "；how to fix it"； to "；how it works"；.。
A.正确
B.错误
正确答案：错误
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 voltage
B.alternating current 24 volts voltage
C.direct current 200 volts voltage
D.alternating current 200 volts voltage
正确答案：direct current 24 volts voltage
5、FANUC control system works under a（）volts voltage.
A.direct current 200
B.alternating current 200
C.direct current 24
D.alternating current 24
正确答案：direct current 24
第九章单元测试
1、Although the robots resemble human beings， they cannot do the work of humans.。
A.正确
B.错误
正确答案：错误
2、Scientists are developing an intelligent robot that can “see” and “touch” and make decisions like human beings.。
A.正确
B.错误
正确答案：正确
3、The technology of robots is completely the same as the NC technology in every way.。
A.正确
B.错误
正确答案：错误
4、PC（Proportional Controller） refers to in Chinese term。
A.积分控制器
B.比例控制器
C.微分控制器
D.数字控制器
正确答案：比例控制器
5、It is a very big opportunity for human； the challenge is（）it wisely.
A.use
B.to use
C.used
D.to be used
正确答案：to use
第十章单元测试
1、 In today’s aerospace and aeronautics industry， a complete aircraft may be designed without a CAD/CAM system.。
A.正确
B.错误
正确答案：错误
2、Advanced CAD/CAM systems include not only solid geometry modeling capability but also NC verification programs.。
A.正确
B.错误
正确答案：正确
3、 Generally speaking， a CAD system is an analytic tool for design.。
A.正确
B.错误
正确答案：错误
4、To avoid accidents， read safety guidelines and related（）carefully and operate the system correctly.
A.menus
B.manuals
C.minuses
D.manes
正确答案：manuals
5、If the NC machine tool is used in a wrong manner， it will（）serious injuries and machine damages.
A.lead to
B.result from
C.due to
D.responsible for
正确答案：lead to