In this category, we add all the DIY school project models for pre-college students (Class 11 / Grade11 )/ (Class 12 / Grade12 ).
where students can do themselves step by step for their school exhibition or fair
1. What is a hydraulic bridge? 2. How does a hydraulic bridge differ from a traditional fixed bridge? 3. What is the primary purpose of a hydraulic bridge? 4. What are the common types of hydraulic bridges? 5. How does a bascule bridge operate? 6. What is the function of the counterweight in a bascule … Read more
1. What is an earthquake alarm? 2. How does an earthquake alarm work? 3. What is the purpose of an earthquake alarm? 4. Can earthquake alarms prevent earthquakes? 5. How accurate are earthquake alarms? 6. Are earthquake alarms commonly used worldwide? 7. What types of sensors are used in earthquake alarms? 8. How can earthquake … Read more
1. What is air pollution? 2. What are the main sources of air pollution? 3. How is air quality measured? 4. What are the health effects of air pollution on humans? 5. How does air pollution affect the environment? 6. What is smog, and how is it formed? 7. What is the role of particulate … Read more
1. What is an air cooler? 2. How does an air cooler differ from an air conditioner? 3. What are the basic components of an air cooler? 4. Explain the working principle of an air cooler. 5. In which climatic conditions are air coolers most effective? 6. How is an air cooler maintained? 7. Can … Read more
1. What is a rain alarm? 2. How does a rain alarm work? 3. What are the common types of rain sensors used in rain alarms? 4. Why is a rain alarm useful? 5. Can rain alarms be used for agricultural purposes? 6. How can rain alarms contribute to water conservation? 7. Are rain alarms … Read more