2024知到网课 工程制图（双语）智慧树答案

第一章 单元测试

1、多选题：According to national standard, which of the following are preferred scales?
A:4：1
B:2：1
C:3：1
D:5：1
正确答案:【2：1;5：1】

2、多选题：

Which of the following lettering heights are provided in national standards?

A:10
B:5
C:7
D:3
正确答案:【10;5;7】

3、判断题：The symbol “GB/T 14689-2008” denotes that the concern national standard is compulsory.
A:对
B:错
正确答案:【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
正确答案:【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:Thin solid lines
B:Wavy lines
C:Thin phantom lines
D:Thin center lines
正确答案:【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 horizontal projection and the profile projection of the same point have the same width coordinate.
B:The frontal projection and the horizontal projection of the same point should be aligned vertically.
C:The frontal projection and the profile projection of the same point should be aligned horizontally.
正确答案:【The horizontal projection and the profile projection of the same point have the same width coordinate.;The frontal projection and the horizontal projection of the same point should be aligned vertically.;The frontal projection and the profile projection of the same point should be aligned horizontally.】

2、多选题：What are the projection properties of frontal line?
A:The horizontal projection is parallel to axis OX.
B:The angle between the frontal projection and axis OX equals the angle of the spacial line and the horizontal plane of projection.
C:The frontal projection gives the true size.
D:The profile projection is parallel to axis OZ.
正确答案:【The horizontal projection is parallel to axis OX.;The angle between the frontal projection and axis OX equals the angle of the spacial line and the horizontal plane of projection.;The frontal projection gives the true size.;The profile projection is parallel to axis OZ.】

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
正确答案:【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:错
B:对
正确答案:【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
正确答案:【错】

第三章 单元测试

1、多选题：

Which of the solid can we make straight lines on its surfaces?

A:

Cylinder

B:

Cone

C:

Sphere

D:

Pyramid

E:

Prism

正确答案:【

Cylinder

;

Cone

;

Pyramid

;

Prism

】

2、多选题：

When we need to make a point on the surface of a solid, on which of the following solid the auxiliary latitude circle method can be used?

A:Prism
B:Cone
C:Pyramid
D:Sphere
正确答案:【Cone;Sphere】

3、判断题：When making projections of points in the conical surfaces of cones and spherical surfaces on spheres, auxiliary element method and auxiliary latitude circle method can both be used.
A:错
B:对
正确答案:【错】

4、判断题：When a sphere is cut by a plane at any location, all of the projections of the produced intersection are circles.
A:错
B:对
正确答案:【错】

5、判断题：When dimensioning a composite solid which is formed by cutting, the dimensions should be given at the location where the solid is cut.
A:对
B:错
正确答案:【对】