September, 19, "cam principle and application" online assignment [Full Score answer]

North tech 《CAD/CAM Principle and Application 》 Online homework -0002

Total score of test paper :100?? score :0
One 、 Single topic selection ( common 20 Two questions , common 40 branch )
1. By defining primitive voxels , Using the set operation or basic deformation operation of voxels , A model that can define the internal structure shape of a three-dimensional object is called （）.
A. Feature model
B. entity model
C. Wireframe model
D. Surface models
2. Following CAD／CAM Process operation , Belong to CAD Categorical is ().
A.GT
B.CAPP
C. CNC machining
D. Geometric modeling
3. Which of the following does not belong to CAD/CAM Work on integration （）.
A. Product modeling technology
B. Data exchange technology
C. Graphics processing technology
D. Knowledge engineering technology
4. For surface models , The operations that cannot be performed are （）.
A. Physical property calculation
B. CNC machining
C. Generation of engineering drawings
D. Model rendering
5. The following is not computer-aided engineering analysis （）.
A. The finite element method
B. Graph drawing
C. optimal design
D. Simulation technology
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6. In geometric voxel construction , Solid model is represented by many basic voxels with certain shape through set operation , Which of the following options does not belong to the set operation ().
A. and
B. hand over
C. Bad
D. ride
7. The most commonly used control medium in NC manual programming is （）.
A. Magnetic tape
B. Eight unit perforated tape
C. disk
D. film
8. What is called the new generation modeling system is （）.
A. Feature modeling
B. Wireframe modeling
C. Surface modeling
D. Entity modeling
9. A three-dimensional geometric model based on geometry , The geometric information of objects and the relationship between them are described in detail
A. Management information
B. Process information
C. Group coding information
D. Topology information
10. Which of the following is not an association between features ().
A. Inheritance relationships
B. Adjacency relations
C. Subordination
D. Aggregate relationship
11. The simple meaning of a graph element is （）.
A. Basic graphics decomposed from part graphics
B. Basic colors of part graphics
C. Coordinate increment of graph
D. Accuracy of graphics
12.CIMS The connection of each subsystem of the system does not include ().
A. Data link
B. Decision making connection
C. Organize contact
D. Information transmission contact
13. The following graphics software standards （） Is the data exchange standard
A.GKS
B.PHIGS
C.STEP
D.CGM
14. The advantages of NC machining are ().
A. High precision 、 High automation 、 High efficiency, etc
B. accuracy 、 Durability, etc
C. systematicness 、 Inheritance, etc
D. knowledge 、 Interesting, etc
15. The following are different CAD The standard of information exchange between systems is （）.
A.IGES
B.GKS
C.CGI
D.PHIGS
16. The data structure of surface modeling in the computer is （） structure .
A. surface
B. Array
C. Trees
D. network
17.MRPⅡ The Chinese meaning of （）.
A. Manufacturing process control system
B. Manufacturing resource planning system
C. MRP system
D. Material resource control system
18. The so-called NC programming generally refers to () Programming .
A. Spare parts
B. CNC system
C. Detection system
D. The cutting tool
19. The first country to carry out research on process design automation is （）.
A. The United States
B. The British
C. Germany
D. The Norwegian
20. The following modeling methods are most suitable for the design of complex shapes （）.
A. Wireframe shape
B. Surface modeling
C. solid modeling
D. Feature modeling
Two 、 Multiple choice ( common 15 Two questions , common 30 branch )
1. soft j As a product , The basic requirements that should be met are （）.
A. correctness
B. reliability
C. integrity
D. practical
E. Maintainability
2. The principles that interaction design should follow are （）.
A. Consistency and standardized design
B. Feedback
C. Error prevention and correction function
D. Tips and help information
E. The user has the least memory
3. Document organization methods mainly include the following （）.
A. Sequence file
B. Index file
C. Index sequential files
D. Data files
E. Direct access files
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4. expert system CAPP It should include （）.
A. Group code
B. Inference engine
C. Process knowledge rules
D. Process database
E. Simulation system
5. The link storage structure is roughly based on the number of pointers （） Several types .
A. just 、 Reverse chain structure
B. Unidirectional ring chain structure
C. Bidirectional chain structure
D. Bidirectional chain structure
E. Multidirectional chain structure
6. Excellent production takes simplification as a means , Eliminate all non value-added work in production . Simplified objects include
A. Organization
B. Relationship with cooperative factories
C. Production process
D. Information model
E. Product inspection link
7.CAD/CAM The development trend of is ().
A. Promotion of information technology
B. Intelligent
C. Standardization
D. Networking
E. Integration
8. choice CAD/CAM Generally, software should consider （）.
A. Software performance price ratio
B. Match with hardware
C. Secondary development environment
D. open
E. The comprehensive ability of software vendors
9. Computer aided engineering analysis usually includes （） Other aspects .
A. The finite element method
B. optimal design
C. Simulation technology
D. Experimental mode
E. Virtual Manufacturing
10. The preprocessing of finite element analysis includes the following ().
A. Generate finite element mesh
B. Optimized sorting of node numbers
C. Processing of calculation results
D. Graphical representation of calculation results
E. Generate input data file
11. In the following geometric modeling methods , The modeling method that can be processed by numerical control is （）.
A. Wireframe shape
B. Curved shape
C. solid modeling
D. Feature modeling
12. Feature modeling is conducive to product design 、 Manufacturing method （）, Make the product consider processing when designing 、 Manufacturing requirements .
A. Integration
B. Gridding
C. Standardization
D. serialization
E. Normalization
13. In Agile Manufacturing CAD/CAM The main features of the system are （）.
A. open
B. collaborative
C. flexible
D. entirety
E. Robustness
14. The characteristics of concurrent engineering are （）.
A. Simplify features
B. Parallel features
C. Overall characteristics
D. Collaborative features
E. Integration characteristics
15. How many aspects can agility of manufacturing enterprises be defined （）.
A. Value based quotation policy
B. Cooperation to improve competitiveness
C. Efficient production
D. Respond to changes in organizational structure
E. Adjust the impact of people and information
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3、 ... and 、 Judgment questions ( common 15 Two questions , common 30 branch )
1. Optimization design is to seek a set of design parameters that can reach the optimal under any conditions .
A. error
B. correct
2. The algorithm of solid modeling is simple .
A. error
B. correct
3. The key of simulation is to establish a simulation model abstracted from the actual system .
A. error
B. correct
4. Surface modeling can reflect the process of object generation .
A. error
B. correct
5. The finite element method is a discrete model that divides the object into finite elements , Then the numerical solution of the model is obtained .()
A. error
B. correct
6.CAD Not just aided design , And it can replace human design （）.
A. error
B. correct
7. Retrieval type CAD The system is mainly applicable to standard series products .（）
A. error
B. correct
8. The principle of light pen is to convert electrical signals into magnetic signals .
A. error
B. correct
9. When designing mechanical products , When there is a certain functional relationship between table data , Apply to CAD The reasonable method in the program is the method of human-computer interaction input .（）
A. error
B. correct
10. Two dimensional tables are not data structures for entity modeling .
A. error
B. correct
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11. Graphic database design 、 The connection between graphic data and non graphic data is an important problem in engineering database technology .（）
A. error
B. correct
12. The characteristics of surface modeling can provide data for finite element .
A. error
B. correct
13. Geometric modeling technology is CAD/CAM One of the key technologies in the system .
A. error
B. correct
14.CAD Selection principle of system hardware , It should be software , Then select the hardware according to the software .（）
A. error
B. correct
15.CAPP It refers to Computer-Aided Fixture Design .
A. error
B. correct