This major question has 20 small questions, each question is worth 2 points, and the total score is 40 points. Among the four options given in each question, only one meets the question requirements)
1. Low-carbon economy refers to the development of technology through technological innovation, institutional innovation, and industrial innovation under the guidance of the concept of sustainable development. Transformation, new energy development and other means to reduce the consumption of high-carbon energy such as coal and oil as much as possible, reduce greenhouse gas emissions, and achieve an economic development form that wins both economic and social development and ecological and environmental protection. The following is about "low carbon" The incorrect statement "economic" is
A. It reduces greenhouse gas emissions and protects the human living environment
B. It speeds up the development of new energy and promotes social production. Changes in methods
C. While developing the economy, people and nature can develop in harmony
D. It shows the bright future of technology and makes people no longer worry about the negative effects of technology.
2. As shown in the picture is a robot designed for the Shanghai World Expo. In addition to allowing tourists to query information, it can also play music, perform Chinese Kung Fu, etc. for tourists. The robot is mainly used for
A. Realize the information interaction of human-machine relationship
B. Realize the safety goal of human-machine relationship
C. Meet the needs of special groups
D. To achieve the healthy goal of human-machine relationship
3. As shown in the picture is a bowl with a handle. The design of the handle mainly reflects the design
A. Economic principle
B. Aesthetic principle
C. Practical principle
D. Technical specification principle
4. As shown in the figure Shown is a laptop table that can be used on a sofa. The factors that do not need to be considered when designing this computer table are
A. The width of the sofa
B. The width of the human body< /p>
C. The size of the laptop
D. The height of the sofa
5. Zhang Ming uses thin iron plates to process the parts as shown in the picture. The following operation methods The incorrect one is
A. The scribing needle is close to the guide tool, and the line is drawn on the thin iron plate. The sample punch is tilted to align with the intersection point, and the punch eye is straightened
B. The left hand Hold the thin iron plate tightly, hold the hand saw in your right hand to cut, push the saw to apply pressure, and pull back without applying pressure
C. Clamp the parts with a vise, file the saw surface, push the file At this time, the pressure on the left hand changes from large to small, and the pressure on the right hand changes from small to large
D. Clamp the drill bit upright on the bench drill, clamp the part with pliers, and align the punch hole
D. p>
6. Zhou Wen used a twist drill to process a hole. The shape of the hole after cutting should be
7. As shown in the figure is the circuit diagram of an electronic speaker. In the circuit diagram, the electronic In addition to batteries, speakers, and switches, component symbols also include
A. Transistor, resistor, and capacitor
B. Resistor, diode, and transistor
C. Capacitor , transformer, resistor
D. Transformer, transistor, capacitor
8. As shown in the figure is the isometric view of a certain part, and its correct top view is
9. Corresponding standards must be formulated for product evaluation. Since the content and goals of product design are different, the evaluation standards are also different and should be focused. As shown in the picture is a tableware rack in a school cafeteria. In order to evaluate the tableware rack, Zhou Wen formulated the following evaluation criteria, among which the reasonable ones are
A. The tableware is hygienic, easy to access, and easy to clean
p>
B. Comfortable, beautiful appearance, market prospects
C. Stable structure, ethics, sustainable development
D. Technical specifications, solid structure, cost-effective
10. In order to detect the swing range of the rocking chair, the following test plan (the arrow in the picture indicates the direction and point of application of force) is reasonable
11. As shown in the picture (qi ) device is an irrigation appliance invented by the working people in ancient my country during production practice. When not filled with water, the jar tilts forward slightly. After filling a small amount of water, the jar will stand up. Once filled with water, the jar will stand upright. It will overturn all of a sudden, empty out the water, and then automatically recover, waiting to be filled with water again.
Regarding the working principle of the decanter, which of the following statements is incorrect
A. The support axis is not on the symmetry plane of the tank, and the tank tilts slightly forward when not filled with water
B. After adding a small amount of water, the center of gravity will lower, and the jar will stand up
C. After filling with water, the center of gravity will rise, forming an unstable structure, and the jar will overturn
D. Jar The stability is only related to the height of the center of gravity and the connection method of the support axis
12. Among the following structures, the ones without hinges are connected
13. Among the following structures, The shell structure is
14. Li Ming needs to process a threaded hole (as shown in the picture) when making a small hammer. The correct process is
A. Marking, punching, drilling and tapping holes and chamfering
B. Marking, punching and tapping holes and chamfering
C. Marking, punching and tapping holes. Chamfering and tapping
D. Marking and punching holes, chamfering, drilling and tapping
15. A student found that the light bulb at home did not light up, so he repaired the circuit. Failure to cut off the power supply resulted in electric shock. According to this case, which of the following statements is wrong
A. Cutting off the power supply and inspecting the circuit are two links in the process
B. Reduce cutting off the power supply link, optimizing the construction period of the process
C. The order of cutting off the power supply and line maintenance is the sequence of the process
D. The sequence of the process in this case is not reversed
16. On June 27, 2009, a 13-story building under construction in Shanghai collapsed completely (as shown in the picture). Experts from the investigation team applied scientific methods to conduct a quantitative analysis of key materials such as cement and steel bars. This reflects the principle of systematic analysis
A. Holistic principle
B. Comprehensive principle
C. Scientific principle
D .Relevance principle
17. The Zhoushan Cross-sea Bridge was officially opened to traffic on December 25, 2009. After the completion of the bridge, Zhoushan will be more closely integrated into the Yangtze River Delta Economic Circle. The bridge's design requirements require it to be able to withstand a maximum level 17 super typhoon, have a maximum navigation level of 50,000 tons, and a service life of 100 years. In order to ensure quality, shorten the construction period, and reduce costs during bridge construction, the project needs to be optimized. The following factors affecting system optimization are
A. Typhoon resistance level
B. Maximum navigation level
C. Engineering project management level
D. Service life
18. As shown in the picture is a double-cylinder washing machine. When washing clothes, rotate the timer knob to the set time position, and the washing machine will start working under the control of the timer. The washing machine will not stop working until the timer returns to the zero position. The control of this process belongs to
A. Manual control, open-loop control
B. Automatic control, open-loop control
C. Automatic control, closed-loop control< /p>
D. Manual control, closed-loop control
19. As shown in the picture, the automatic soup machine designed and produced by students of a certain school can maintain the temperature of the soup within a certain range. When you press the soup button, a bowl will automatically drop and a certain amount of soup will be released into the bowl. In the temperature control system of the automatic soup machine, the unnecessary components are
A. Temperature sensor
B. Heater
C. Temperature control
D. Timer
20. As shown in the picture is an intelligent robot developed by the Chinese Academy of Sciences, which can imitate people singing, dancing, etc. This method of using robots to imitate human functions and behaviors belongs to
A. Black box method
B. Transplantation method
C. Virtual method
D. Functional simulation method
2. Non-choice questions Edit this paragraph and return to the table of contents (this major question has 7 small questions, questions 21-25 are 6 points each, question 26 is 12 points, question 27 is 18 points, ***60 points)
21. Based on the axonometric drawing, complete the missing lines in the three views of Duoduo.
22. For the parts shown in the picture, the following steps are required when processing square holes on round steel,
① scoring; ② filing; ③ drilling; ④ sawing Cut.
Please analyze the processing technology of square heads and holes and answer the following questions:
(1) Supplement the complete processing process (fill in the serial number at "▲")
Underline→ ▲ → ▲ → ▲ → ▲.
(2) Tools needed during processing (choose any three tools and fill in the tool name at "▲"): ▲, ▲, ▲.
23. The design of the China Pavilion at the 2010 Shanghai World Expo (as shown in the picture) introduced the most advanced scientific and technological achievements and adopted the following optimization measures: ① The main building is stacked with overhangs, and the "fighting crown" shape integrates traditional Chinese Architectural cultural elements; ② The protruding layer of the main building provides sunshade and energy saving for the lower space; ③ The hall can be ventilated from east to west, north and south, allowing people to feel a proper air flow; ④ The viewing platform uses solar film to convert sunlight into electrical energy; ⑤ All pipelines are cleverly hidden within the building; ⑥ The exterior wall materials are green products without radiation and light pollution; ⑦ There is a rainwater collection system on the top floor, which is used to flush toilets and vehicles after purification; ⑧ Use holographic imaging technology to record and reproduce objects Real three-dimensional images; ⑨ Use large-scale LED electronic display to release information to the audience in a timely manner. Please analyze the optimization measures of the China Pavilion and answer the following questions (fill in the appropriate serial number at "▲"):
(1) Measures to optimize information interaction include ▲, ▲
(2) Measures to achieve sustainable development as the optimization goal include ▲, ▲, ▲, ▲
24. Wuhan-Guangzhou High-speed Railway is my country’s first dedicated passenger line with a design speed of 350km/h , it has the following characteristics: ① The speed is currently the highest speed in commercial operation of high-speed railways in the world; ② The interior of the train is spacious, bright and transparent; ③ Vibration and noise meet national standards; ④ Instruments are buried in the roadbed and foundation for accurate measurement The roadbed is deformed and can automatically alarm; ⑤ The train is equipped with a speed detection device, which can display the train running speed to passengers in real time; ⑤ The temperature, humidity, and air quality in the train can be automatically adjusted, and the seats can be rotated; ⑦ The operation control system can ensure that the front and rear The trains have a necessary safety distance to effectively prevent rear-end collisions; ⑧Extremely large passenger capacity, short departure intervals, and annual passenger transport volume of hundreds of millions of people. Please answer the following questions based on the above characteristics (fill in the appropriate serial number at "▲"):
(1) Those who have achieved the goal of efficient human-machine relationship are ▲ and ▲;
( 2) Some ▲ and ▲ have achieved the safety goal of human-machine relationship;
(3) Some ▲ and ▲ have achieved the goal of comfortable human-machine relationship.
25. As shown in the figure is the schematic diagram of the automatic pressure-stabilized water supply control system for high-rise buildings. Its working principle is: when the user's water consumption changes, the water pressure in the pipeline changes, and the detection device detects The water pressure signal is fed back to the controller and compared with the set water pressure. The controller controls the speed of the motor and water pump according to the deviation value, adjusts the water supply, and keeps the water pressure in the pipeline stable.
(1) According to the schematic diagram and its description, fill in the content corresponding to the schematic diagram of the automatic pressure-stabilized water supply control system at the "▲" position in the control system block diagram.
(2) Please choose a suitable sensor for the detection device of this system (choose one from water temperature sensor, water pressure sensor, water level sensor and fill in the "▲" place) ▲.
26. As shown in the figure is a crane model. It is required to determine the mass of the balance block and test the lifting capacity of the model. We now provide several weights and balance blocks of different masses. Please design a simple test plan, express the test method and explain the main steps on the given structural diagram (the crane model has sufficient strength, regardless of the rotation of the model and the lifting and lowering of the weight) ) and answer questions.
(1) Determine the maximum mass of the model's balance block without lifting heavy objects.
(2) Test the maximum lifting mass of the model when a suitable balance weight has been installed.
(3) If you want to improve the stability of the model, what measures can be taken (write down two specific measures)?
(4) If the balance arm is lengthened, should the mass of the balance mass increase or decrease (answer "increase" or "decrease")?
27. As shown in the picture is a cup holder made of stainless steel, which can hang various cups with handles. Now we need to design a multifunctional kitchen utensil rack. The design requirements are:
A. Suitable for home kitchen use;
B. Can store kitchen utensils with and without handles.
Please complete the following tasks based on the above requirements and with reference to the design of the cup holder:
(1) Draw a design sketch and describe it with text if necessary;
(2) Mark the three dimensions of length, width and height;
(3) Explain the main materials used and the corresponding connection methods;
(4) Explain your design plan There are two characteristics of creativity.
3. Edit this paragraph with reference to the answers and return to the directory DACDB BABAB DCBCB CCBDD (for reference only, if you have any questions, please help edit) - Jiang Weiliang
Attached are the answers to 22--25. Please check if there are any questions. Please correct the answers for 21, 26 and 27! -yexiang88
22. (1) ④②①③ (2) Scratching needle, sample punching, hand saw
23.(1)⑧⑨(2)②④⑥⑦
24. (1)①⑧(2)④⑦(3)②⑥
25. (1) Set water pressure, motor And water pumps, pipes (water in pipes), actual water pressure, detection devices
(2) Water pressure sensor