第一章 单元测试
1、单选题：What does a thick line represent in drawing?
A:represent hatching line
B:represent symmetrical line
C:represent invisible line
D:represent visible line
正确答案:【represent visible line】
2、多选题：The possible direction of a dimension text should towards?
A:left
B:down
C:upper
D:right
正确答案:【left;upper】
3、判断题：The “R” and “∅ ” means radius and diameter.
A:错
B:对
正确答案:【对】
4、多选题：The main contents of title block are:
A:class
B:student ID NO.
C:signature
D:part name
正确答案:【class;student ID NO.;signature;part name】
5、多选题：The elements of the dimension
A: extension line
B: text
C: arrow head
D: dimension line
正确答案:【 extension line; text; arrow head; dimension line】
6、判断题：Thin dashed dotted line to indicate axis line ,symmetrical center lines.
A:对
B:错
正确答案:【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.
A:对
B:错
正确答案:【对】
8、判断题：Thick dashed line shown can be made surface-treatment
A:错
B:对
正确答案:【对】
9、判断题：A compass is used to draw circles and arcs
A:错
B:对
正确答案:【对】
10、多选题：The main contents of title block are:
A:signature
B:student ID NO.
C:part name
D:class
正确答案:【signature;student ID NO.;part name;class】
11、多选题：The elements of the dimension
A: text
B: dimension line
C: arrow head
D: extension line
正确答案:【 text; dimension line; arrow head; extension line】
12、多选题：The possible direction of a dimension text should towards?
A:upper
B:down
C:left
D:right
正确答案:【upper;left】
13、多选题：The main contents of title block are:
A:part name
B:class
C:signature
D:student ID NO.
正确答案:【part name;class;signature;student ID NO.】
14、多选题：The elements of the dimension
A: dimension line
B: extension line
C: text
D: arrow head
正确答案:【 dimension line; extension line; text; arrow head】
15、多选题：The main contents of title block are:
A:signature
B:class
C:part name
D:student ID NO.
正确答案:【signature;class;part name;student ID NO.】
16、多选题：The elements of the dimension
A: dimension line
B: text
C: extension line
D: arrow head
正确答案:【 dimension line; text; extension line; arrow head】
17、多选题：The main contents of title block are:
A:part name
B:student ID NO.
C:class
D:signature
正确答案:【part name;student ID NO.;class;signature】
18、多选题：The elements of the dimension
A: dimension line
B: arrow head
C: text
D: extension line
正确答案:【 dimension line; arrow head; text; extension line】
第二章 单元测试
1、单选题：Which coordinates are related to H projection of a point?
A:x,y,z
B:x,z
C:y,z
D:x,y
正确答案:【x,y】
2、单选题：How can you represent V projection of a point?
A:a”
B:a
C:a’
D:A
正确答案:【a’】
3、单选题：Which projection accumulates as a point for a H perpendicular line?
A:no projection accumulates as a point
B:W
C:H
D:V
正确答案:【H】
4、单选题：Which projection is the true length for a frontal line?
A:no projection
B:W projection
C:H projection
D:V projection
正确答案:【V projection】
5、单选题：How many types of parallel line are there relative to projection plane?
A:3
B:2
C:4
D:1
正确答案:【3】
6、多选题：How many relationships between two lines?
A:2
B:4
C:3
D:1
正确答案:【4;3】
7、判断题：If two projections of two lines are parallel, then the two lines are parallel in space
A:对
B:错
正确答案:【错】
8、判断题：The true length projection of a line appears in a projection plane that is parallel to the line
A:错
B:对
正确答案:【对】
9、判断题：Two lines are parallel in space provided that their respective projections on two projection planes are parallel.
A:错
B:对
正确答案:【对】
10、判断题：If a line is parallel to any line in a plane, the line is parallel to the plane.
A:错
B:对
正确答案:【对】
11、多选题：How many relationships between two lines?
A:3
B:1
C:2
D:4
正确答案:【3;4】
第三章 单元测试
1、单选题：What type of intersection line can you get, when a sphere cut by a plane?
A:ellpse
B:straight line
C:circle
D:uncertain
正确答案:【circle】
2、单选题：
Known to have four sets of projections of a sphere with a circular hole, the correct set is ( ) 
A:b
B:a
C:c
D:d
正确答案:【c】
3、单选题：
Known solid’s main view and top view, select correct left view ( )
A:a
B:b
C:d
D:c
正确答案:【a】
4、单选题：
Given the main view and top view of the solid, the correct left view is ( )
A:d
B:c
C:a
D:b
正确答案:【c】
5、单选题：
According to the main and top views, select the right left view ( )
A:a
B:c
C:b
D:d
正确答案:【a】
6、单选题：
Select the correct left view ( )
A:d
B:a
C:b
D:c
正确答案:【c】
7、单选题：
Select the correct left view ( )
A:a
B:c
C:b
D:d
正确答案:【d】
8、单选题：
Select the correct left view ( )
A:a
B:d
C:b
D:c
正确答案:【b】
9、单选题：
Select the correct top view ( )
A:b
B:c
C:a
D:d
正确答案:【a】
10、单选题：
Select the correct top view ( )
A:d
B:c
C:b
D:a
正确答案:【b】
11、单选题：
Select the correct left view ( )
A:a
B:b
C:c
D:d
正确答案:【c】
12、单选题：
Select the correct left view ( )
A:a
B:b
C:c
D:d
正确答案:【d】
13、单选题：
Select the correct top view ( )
A:a
B:c
C:d
D:b
正确答案:【b】
第四章 单元测试
1、单选题：What are the regulations of three views? main view and left view : ; main view and top view: ; top and left view: .
A:same height; same witdh; same length
B:same height; same length; same width
C:same width; same length; same height
D:same length; same height; same width
正确答案:【same height; same length; same width】
2、判断题：is the dashed line necessary in isometric projection?
A:错
B:对
正确答案:【错】
3、单选题：How much is the axes angle of isometric projection
A:60°
B:120°
C:125°
D:90°
正确答案:【120°】
4、判断题：longer dimension should be outside of short ones.
A:对
B:错
正确答案:【对】
5、判断题：The overall length is necessary for a round end plate.
A:对
B:错
正确答案:【错】
6、判断题：The three types of dimension include shape dimension, location dimension and overall dimension
A:错
B:对
正确答案:【对】
7、单选题：select the correct view.
A:d
B:c
C:b
D:a
正确答案:【d】
8、单选题：
Select the correct left view ( )
A:a
B:c
C:d
D:b
正确答案:【c】
9、单选题：
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