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工程制图(双语) 2024智慧树满分答案
第一章 单元测试
1、多选题:
According to national standard, which of the following are preferred scales?
A:3:1
B:4:1
C:2:1
D:5:1
答案: 2:1;5:1
2、多选题:
Which of the following heights are provided in national standards?
A:3
B:7
C:5
D:10
答案: 7;5;10
3、判断题:
The symbol “GB/T 14689-2008” denotes that the concern national standard is compulsory.
A:错
B:对
答案: 错
4、判断题:
When we make a drawing, a frame should be drawn inside of the outmost edges of the drawing sheet. There are two styles of drawing sheet layout: with a filling margin and without a filling margin.
A:对
B:错
答案: 对
5、单选题:
Which of the following lines are used as dimension lines, extension lines, leader lines, construction lines, section lines and projection lines?
A:Wavy lines
B:Thin solid lines
C:Thin phantom lines
D:Thin center lines
答案: Thin solid lines
第二章 单元测试
1、多选题:
Which of the following are the projection rules of the projections of points?
A:The frontal projection and the profile projection of the same point should be aligned horizontally.
B:The frontal projection and the horizontal projection of the same point should be aligned vertically.
C:The horizontal projection and the profile projection of the same point have the same width coordinate.
答案: The frontal projection and the profile projection of the same point should be aligned horizontally.;The frontal projection and the horizontal projection of the same point should be aligned vertically.;The horizontal projection and the profile projection of the same point have the same width coordinate.
2、多选题:
What are the projection properties of frontal line?
A:The angle between the frontal projection and axis OX equals the angle of the spacial line and the horizontal plane of projection.
B:The horizontal projection is parallel to axis OX.
C:The profile projection is parallel to axis OZ.
D:The frontal projection gives the true size.
答案: The angle between the frontal projection and axis OX equals the angle of the spacial line and the horizontal plane of projection.;The horizontal projection is parallel to axis OX.;The profile projection is parallel to axis OZ.;The frontal projection gives the true size.
3、判断题:
If a line is an oblique line, the projections of the line will be foreshortened lines in the three planes of projections.
A:对
B:错
答案: 对
4、判断题:
The connecting line between the spacial point and its horizontal projection reflects the distance of the point to the horizontal plane of projection, and it equals the coordinate X of the point.
A:对
B:错
答案: 错
5、判断题:
According to the difference of X coordinates of the two points, we can tell the relative position of these two points in front-rear direction.
A:错
B:对
答案: 错
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