第一章 单元测试
1、单选题：
What does a thick line represent in drawing?
选项：
A:represent visible line
B:represent invisible line
C:represent symmetrical line
D:represent hatching line
答案: 【represent visible line】
2、多选题：
The possible direction of a dimension text should towards?
选项：
A:left
B:right
C:upper
D:down
答案: 【left;upper】
3、判断题：
The "R" and "∅ " means radius and diameter.
选项：
A:对
B:错
答案: 【对】
4、多选题：
The main contents of title block are:
选项：
A:part name
B:signature
C:class
D:student ID NO.
答案: 【part name;signature;class;student ID NO.】
5、多选题：
The elements of the dimension
选项：
A:extension line
B:dimension line
C:arrow head
D:text
答案: 【extension line;dimension line;arrow head;text】
6、判断题：
Thin dashed dotted line to indicate axis line ,symmetrical center lines.
选项：
A:对
B:错
答案: 【对】
7、判断题：
Continuous thin irregular line to indicate part sectional boundary lines or to terminate a part view, and for short break line.
选项：
A:对
B:错
答案: 【对】
8、判断题：
Thick dashed line shown can be made surface-treatment
选项：
A:对
B:错
答案: 【对】
9、判断题：
A compass is used to draw circles and arcs
选项：
A:对
B:错
答案: 【对】
第二章 单元测试
1、单选题：
Which coordinates are related to H projection of a point?
选项：
A:x,y
B:x,z
C:y,z
D:x,y,z
答案: 【x,y】
2、单选题：
How can you represent V projection of a point?
选项：
A:a'
B:a
C:A
D:a''
答案: 【a'】
3、单选题：
Which projection accumulates as a point for a H perpendicular line?
选项：
A:V
B:W
C:H
D:no projection accumulates as a point
答案: 【H】
4、单选题：
Which projection is the true length for a frontal line?
选项：
A:H projection
B:V projection
C:W projection
D:no projection
答案: 【V projection】
5、单选题：
How many types of parallel line are there relative to projection plane?
选项：
A:1
B:2
C:3
D:4
答案: 【3】
6、多选题：
How many relationships between two lines?
选项：
A:1
B:2
C:3
D:4
答案: 【3;4】
7、判断题：
If two projections of two lines are parallel, then the two lines are parallel in space
选项：
A:对
B:错
答案: 【错】
8、判断题：
The true length projection of a line appears in a projection plane that is parallel to the line
选项：
A:对
B:错
答案: 【对】
9、判断题：
Two lines are parallel in space provided that their respective projections on two projection planes are parallel.
选项：
A:对
B:错
答案: 【对】
10、判断题：
If a line is parallel to any line in a plane, the line is parallel to the plane.
选项：
A:对
B:错
答案: 【对】
