老友网智慧树知到《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 work-piece.
A:对
B:错
答案: 对
3、Like a conventional machine tool, the NC system can’t 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 Converter
C:Central Processing Unit
D:Basic Revolution Unit
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
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 the conventional NC software with hardware as possible.
A:对
B:错
答案: 错
4、The part program contains a description of the _.
A:program
B:geometry
C:data
D:parameter
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
答案: DNC
第三章
1、As NC machines need 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.
A:对
B:错
答案:
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
答案:
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
答案:
第四章
1、Part programmers must have a solid knowledge of machining 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 line 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: calculate
B: decide
C: prove
D: be familiar
答案:
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
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 a production run, it’s 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 troubles
B: injuries
C: work-piece
D: all right
答案:
5、Before operation the machine, you should read the contents in the ___.
A: warning labels
B:textbook
C: cell phone
D: 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 Diagnostics 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: ATM
B:CNC
C: ATC
D: ADC
答案:
5、With ____ based CNC machine tool controllers, maintenance and repair are no longer an issue.pc
A: PC
B: PID
C: FMS
D: 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 can‘t send messages to those users that its Windows account can access.
A:对
B:错
答案:
3、Factory Automation (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 cable
B:a line
C: a software
D: a hardware
答案:
5、What does CAD mean?
A: Controller Aided Design
B: Computer Aided Design
C: Controller Aided Diagram
D: 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: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 voltage
B:alternating current 24 volts voltage
C: direct current 200 volts voltage
D: alternating current 200 volts voltage
答案:
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
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:
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 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
答案:
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
答案:
第十章
1、In today’s 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 geometry 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: minuses
D: manes
答案:
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
答案:
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