Topic 6 – End of Topic Test PDF

## Topic 6 – End of Topic Test **1. An expert system is an example of artificial intelligence. One component of an expert system is a knowledge base. Explain why an expert system needs a knowledge base.** **[3 Marks]** **2. Robots are used in a factory to build cars. One characteristic of a robot...

## Topic 6 – End of Topic Test **1. An expert system is an example of artificial intelligence. One component of an expert system is a knowledge base. Explain why an expert system needs a knowledge base.** **[3 Marks]** **2. Robots are used in a factory to build cars. One characteristic of a robot is its mechanical structure.** **a. State two other characteristics of a robot.** **[2 marks]** **b. Suggest two advantages of using robots, instead of humans, to build cars in the factory.** **[2 marks]** **c. Give one disadvantage to the company's owners of using robots to manufacture cars.** **[1 mark]** **3. State two main components of an automated system.** **4. Describe the role of a microprocessor in an automated system.** **5. Give one advantage and one disadvantage of using automated systems in industry.** **6. Jamelia has a greenhouse that she uses to grow fruit and vegetables. She needs to make sure the temperature in the greenhouse stays between 25°C and 30°C (inclusive).** A system that has a temperature sensor and a microprocessor is used to maintain the temperature in the greenhouse. The system will: - open a window and turn a heater on if it gets too hot - close a window and turn a heater on if it gets too cold. **Describe how the system uses the temperature sensor and the microprocessor to maintain the temperature in the greenhouse.** **A theme park has a game where a player tries to run from the start to the finish without getting wet. The system for the game uses sensors and a microprocessor to spray water at a player as they run past each sensor. Describe how the sensors and the microprocessor are used in this system.** **A factory uses an automated system to control the temperature of its storage rooms. The system consists of temperature sensors, a microprocessor, and actuators connected to heaters and cooling units.** **The sensors monitor the temperature and send the data to the microprocessor. The microprocessor processes the data and activates the heaters or cooling units based on pre-programmed rules. ** **Explain how the automated system maintains the desired temperature in the storage rooms.** **Discuss two advantages and two disadvantages of using such an automated system in the factory.** **A sensor and a microprocessor are used to monitor the pH of the cleaning products. The system records each reading that is taken. If the reading is greater than 7 a warning message is displayed on a monitor. Explain how the sensor and microprocessor are used in the system.** **[6]** **A theme park has a game where a player tries to run from the start to the finish without getting wet.** **The system for the game uses sensors and a microprocessor to spray water at a player as they run past each sensor. ** **Describe how the sensors and the microprocessor are used in this system.** **A security light system is used by a factory. The light only comes on when it is dark and when movement is detected. The light will stay on for 1 minute before switching off. Sensors and a microprocessor are used to control the security light system. (a) Identify two sensors that would be used in the security light system.** **Sensor 1** **Sensor 2** **[2] (b) Describe how the sensors and the microprocessor control the security light system.** **[8]** **A farmer uses an automated robot to plant seeds in the field. (a) State what is meant by the robot being automated.** **[1] (b) Give three characteristics of a robot.** **1.** **2.** **3.** **[3] (c) The robot plants seeds and stops when it reaches a fence. It then turns and continues planting seeds. The robot uses sensors and a microprocessor to know when it reaches a fence. Explain how the robot uses sensors and a microprocessor to know it has reached a fence.** **Give two advantages of the farmer using an automated robot to plant seeds.** **1.** **2.** **[2] (e) Give two disadvantages of the farmer using an automated robot to plant seeds.** **1.** **2.** **[2] (f) The robot is adapted to have machine learning capabilities. Explain how this will improve the robot.** **A garage uses an expert system to help diagnose any problems with cars that need repair. (a) The expert system is an example of artificial intelligence (AI). Describe what is meant by AI.** **[2] (b) A car has a problem with its braking system, so it is brought into the garage. Explain how the expert system operates and how it is used to help diagnose the problem.** **A robot vacuum cleaner uses sensors to navigate around obstacles in a room. (a) Tick (3) one box to show which sensor would be the most suitable for this purpose. A proximity B flow C pressure D level [1] (b) An expert system can be used to diagnose an error with a robot vacuum cleaner. Circle three components that are part of an expert system. knowledge base operating system firewall server printer actuator inference engine rule base encryption** **Explain how the robot vacuum cleaner can make use of machine learning. [3]**