2020 Fundamentals of Geometric Dimensioning and Tolerancing(Dalian University of Technology) 最新满分章节测试答案

文章目录[隐藏]

2 DIMENSIONAL TOLERANCES
3 GEOMETRICAL TOLERANCES
4 MEASUREMENT TECHNOLOGY
5 TOLERANCE PRICIPLES
6 SURFACE ROUGHNESS
9 EXPERIMENTS

本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-12-09到2022-07-15

2 DIMENSIONAL TOLERANCES

1、问题:Basic deviation refers to
选项：
A:Lower deviation
B:Upper deviation
C:Middle deviation
D:Deviation near zero line
答案: 【Deviation near zero line】

2、问题:When the tolerance zone of the hole and shaft overlap each other, its matching property is
选项：
A:Clearance fit
B:Interference fit
C:Transition fit
D:Unable to judge
答案: 【Transition fit】

3、问题:When the design is given, what is the dimension called?
选项：
A:Basic size
B:Limit size
C:Maximum size
D:Actual size
答案: 【Basic size】

4、问题:The tolerance applies simultaneously to circular and () elements of the controlled surface.
选项：
A:Longitudinal
B:Perpendicularity
C:Flat
D:Positional
答案: 【Longitudinal】

5、问题:In a profile control of a curved surface, the profile must be dimensioned with :
选项：
A:Plus and minus dimensions
B:Limit dimensions
C:Radial dimensions
D:Basic dimensions
答案: 【Basic dimensions】

6、问题:Of the following geometric characteristic symbols,which is considered a 2-D line element control?
选项：
A: Circularity
B:Flatness
C:Concentricity
D:Cylindricity
答案: 【 Circularity】

7、问题:A cylindricity tolerance controls roundness and :
选项：
A:Perpendicularity
B:Flatness
C:Straightness and taper
D:Angularity
答案: 【Straightness and taper】

8、问题:What kind of tolerance is 0.500±0.010?
选项：
A:Limit dimensioning
B:Location tolerance
C:Bilateral plus and minis tolerancing
D:Unilateral plus and minus tolerancing
答案: 【Bilateral plus and minis tolerancing】

9、问题:A controlled feature’s cylindricity is compared to a perfect geometric counterpart of:
选项：
A:A datum
B:An axis
C:Itself
D:A hole
答案: 【Itself】

10、问题:The standard tolerance values of holes and axes at the same tolerance level must be equal.
选项：
A:正确
B:错误
答案: 【正确】

3 GEOMETRICAL TOLERANCES

1、问题:Position is a geometric control that is not capable of controlling:
选项：
A:Perpendicularity
B:Distance
C:Coaxiality
D:Circularity
答案: 【Circularity】

2、问题:Of the following geometric characteristic symbols,which is the most restrictive in its control of surface characteristics?
选项：
A:Circular runout
B:Position
C:Total runout
D:Concentricity
答案: 【Total runout】

3、问题:Of the following geometric characteristic symbols,which is least capable of controlling flatness:
选项：
A:Perpendicularity
B:Angularity
C:Parallelism
D:Straightness
答案: 【Straightness】

4、问题:According to the specific conditions, which of the following items is the shape and position tolerance characteristic of tolerance belts in different situations?
选项：
A:Straightness
B:Flatness
C:Roundness
D:Coaxiality
答案: 【Straightness】

5、问题:The shape of roundness tolerance zone is
选项：
A:Two concentric circle
B:Cylinder
C:Two parallel planes
D:Two sets of parallel planes perpendicular to each other
答案: 【Two concentric circle】

6、问题:The shape of the tolerance zone of the axis of the hole in any direction is
选项：
A:Two concentric circle
B:Cylinder
C:Two parallel planes
D: Two sets of parallel planes perpendicular to each other
答案: 【Cylinder】

7、问题:The relationship between the straightness tolerance of the measured axis and its coaxial tolerance to the datum axis should be
选项：
A:The former must be equal to the latter.
B:The former must be greater than the latter.
C: The former should not be greater than the latter.
D:The former must not be less than the latter.
答案: 【 The former should not be greater than the latter.】

8、问题:Which of the following would be inappropriate to include in a feature control frame for a straightness control:
选项：
A:A diameter symbol
B:A maximum material condition
C:A datum reference
D: A geometric tolerance
答案: 【A datum reference】

9、问题:Limits of size on a rectangular part are not a control of the following?
选项：
A:Flatness
B:Perpendicularity
C:Parallelism
D:Straightness
答案: 【Perpendicularity】

10、问题:In the concept of composite positional tolerancing:
选项：
A:The features within a pattern hold a tighter tolerance in relation to one another than to any datums that are listed only in the upper lever control.
B:The features within a pattern hold a looser tolerance in relation to one another than to any datums that aare listed only in the upper level control.
C:The features within a pattern hold an equally tight tolerance in relation to one another and to any datums listed only in the upper level control.
D:The features within a pattern are held in place to one another by a positional tolerance, but are located to datums by a plus and minus tolerance.
答案: 【The features within a pattern hold a tighter tolerance in relation to one another than to any datums that are listed only in the upper lever control.】

11、问题:When basic dimensions are given to locate a hole:
选项：
A:No tolerance is allowed on the hole location
B:The location tolerance in the general title tolerance block on the drawing applies
C:The location tolerance is found in a position feature control frame.
D:The tolerance will appear next to the basic dimension as a plus or minus tolerance
答案: 【The location tolerance is found in a position feature control frame.】

12、问题:Total Runout can be inspected the best with:
选项：
A: A micrometer
B:A Vernier caliper
C:A dial indicator
D:A fixed size receiver gage made at virtual conditon
答案: 【A dial indicator】

13、问题:Position deviation from “ture position”can be calculated using the following formular:
选项：
A:Two times the square root of the sum of the squares of the x and y deviations
B:The difference between the sum of the square roots of the x and y deviations.
C:The dividend of the squares of the x and y deviations.
D: The square root of 2 times the difference in the x and y deviations.
答案: 【Two times the square root of the sum of the squares of the x and y deviations】