EE2317 Prep Notes PDF

EE2317 Name: ___________________________________________ Yr.: and Sec:.____________ Date: ________________ 1. What is essential to minimize delamination risks in composite materials? A. Choosing the right materials for matrix and reinforcement B. Using traditional single material...

EE2317 Name: ___________________________________________ Yr.: and Sec:.____________ Date: ________________ 1. What is essential to minimize delamination risks in composite materials? A. Choosing the right materials for matrix and reinforcement B. Using traditional single material C. Increasing the weight of composites D. Reducing the number of layers in composites 2. What advantage do composites provide in aerospace and structural engineering? A. Exceptional strength and stiffness B. Increased weight C. Lower durability D. Higher costs 3. What is a key feature of self-healing composites? A. They can autonomously repair themselves B. They are heavier than traditional materials C. They require constant maintenance D. They are only used in construction 4. How do composite materials benefit high-voltage transmission lines? A. By minimizing weight and maximizing strength B. By increasing sagging C. By reducing conductivity D. By making them heavier 5. What is a significant benefit of using lightweight composites in electronic devices? A. Reduced weight without compromising performance B. Increased weight for better stability C. Higher costs for production D. Lower efficiency 6. What role do composite materials play in enhancing the efficiency of high-voltage transmission lines? A. Minimizing weight and maximizing strength B. Increasing the overall weight C. Reducing the number of conductors D. Improving insulation only 7. In which century did smart composites with embedded sensors begin to rise? A. 19th Century B. 20th Century C. 21st Century D. 22nd Century 8. What is a significant challenge regarding composite materials mentioned in the document? A. Long-term durability B. High production costs C. Limited applications D. Environmental impact 9. How do composite materials contribute to sustainability efforts? A. By reducing waste and demand for new raw materials B. By increasing the use of traditional materials C. By enhancing the weight of products D. By complicating the recycling process 10. What is one of the key advantages of using composites in consumer electronics?  A. Improved durability and resistance to environmental factors B. Increased weight for better stability C. Higher production costs D. Limited design flexibility 11. What is a key characteristic of composite materials in terms of their composition? A. They combine two or more distinct materials B. They are made from a single material C. They are always heavier than metals D. They cannot be recycled 12. What is one of the main benefits of using composites in automotive applications? A. Improved fuel efficiency B. Increased weight C. Higher costs D. Reduced performance 13. What technology has emerged in the 21st century related to composite materials? A. Smart composites with embedded sensors B. Traditional materials C. Heavy metals D. Single-layer composites 14. What is a significant advantage of self-healing composites? A. They can autonomously repair themselves B. They are more expensive to produce C. They require manual repairs D. They are less durable 15. What is a primary application of composite materials in electrical engineering? A. High-voltage insulators B. Traditional copper wiring C. Single-layer conductors D. Heavy metal components 16. What are ceramic substrates primarily used for in modern electronics? A. Providing a stable platform for mounting components B. Creating decorative pottery C. Enhancing thermal resistance in metals D. Improving electrical conductivity 17. Which type of ceramics is known for having atoms arranged in a regular, repeating pattern? A. Amorphous Ceramics B. Composite Ceramics C. Crystalline Ceramics D. Bioceramics 18. What significant advancement in ceramics occurred around 1200 AD? A. Development of stoneware B. Introduction of porcelain C. Mass production techniques D. Creation of nanoceramics 19. What is a key property of ceramics that makes them suitable for high-power electronics? A. High thermal conductivity B. Low dielectric strength C. High electrical conductivity D. Brittle nature 20. What is the main disadvantage of ceramics mentioned in the document? A. High cost B. Low thermal stability C. High electrical conductivity D. Easy processing 21. What unique properties do ceramic materials exhibit that make them ideal for sensors? A. High thermal conductivity B. Chemical inertness C. Brittle nature D. Low electrical conductivity 22. What was a major innovation in ceramics that occurred around the 18th century? A. Development of stoneware B. Introduction of porcelain C. Advancements in technical ceramics D. Creation of nanoceramics 23. What is the primary use of bioceramics? A. For decorative pottery B. In medical applications C. For high-power electronics D. In energy harvesting devices 24. What is one of the challenges associated with processing ceramics? A. Requires low-temperature environments B. Requires high-temperature environments C. Is cost-effective D. Is easy to process 25. What is a key benefit of ceramics in electrical applications? A. High electrical conductivity B. High dielectric strength C. Low thermal stability D. Brittle nature 26. What unique properties do ceramic materials exhibit that make them ideal for sensors? A. High thermal conductivity B. Chemical inertness C. Brittle nature D. Low electrical conductivity 27. What was a major innovation in ceramics that occurred during the Industrial Revolution? A. Mass production techniques B. Development of nanoceramics C. Introduction of bioceramics D. Creation of porcelain 28. What type of ceramics are designed to be biocompatible for medical applications? A. Nanoceramics B. Bioceramics C. Technical ceramics D. Composite ceramics 29. What is one of the main challenges in processing ceramics? A. Requires low-temperature environments B. Requires high-temperature environments C. Easy to manufacture  D. Low production time 30. What is the primary use of ceramics in high-power applications? A. Creating decorative items B. Improving energy efficiency C. Enhancing electrical resistance D. Reducing thermal shock 31. What is the primary characteristic of most polymers in electrical applications? A. High dielectric strength B. Excellent insulating properties C. Semi-conductive nature D. High conductivity 32. What process is used to enhance the electrical properties of polymers? A. Doping B. Cross-linking C. Thermal treatment D. Coating 33. Why is high dielectric strength important for insulating materials? A. It allows for energy storage B. It decreases thermal resistance C. It prevents electrical currents from passing through unwanted paths D. It enhances electrical conductivity 34. What does dielectric strength measure? A. Material's electrical conductivity under normal conditions B. Material's resistance to thermal breakdown C. Material's insulation thickness D. Material's ability to resist breakdown under high voltage 35. In what application do capacitors depend on dielectric materials? A. Energy transmission B. Signal processing C. Electrical energy storage D. Current flow regulation 36. What is a significant area of research in the development of conductive polymers? A. Enhancing their conductivity B. Limiting their applications in electronics C. Widening the gap between conductors and insulators D. Decreasing their dielectric strength 37. Which industry does not heavily rely on dielectric strength? A. Textile manufacturing B. Power generation C. Telecommunications D. Electronics 38. What advantage does investing in chemically resistant materials provide to industries? A. Limited material options B. Higher initial investment C. Increased production rates D. Lower maintenance costs 39. Which polymer is known for its excellent electrical properties and durability in cable insulation? A. Polyvinyl chloride (PVC) B. Polyethylene (PE)  C. Polytetrafluoroethylene (PTFE) D. Polyaniline 40. What characteristic of PTFE makes it suitable for high-voltage applications? A. Low production costs B. High thermal conductivity C. Flexibility in design D. High dielectric strength 41. Which polymer is often used in cable jacketing and known for its affordability? A. Polyethylene (PE) B. Polypropylene (PP) C. Polyaniline D. Polyvinyl chloride (PVC) 42. What is a key property of polypropylene (PP) that makes it beneficial in electrical engineering? A. High density B. Flexibility and lightweight C. High melting point D. Chemical inertness 43. What type of applications is polyacetylene most associated with? A. Environmental protection B. Conductive applications C. High-voltage insulation D. Heating elements 44. Which aspect makes regulatory compliance crucial for industries using insulating materials? A. Adherence to safety regulations B. Material sourcing techniques C. Customer satisfaction levels D. Cost reduction strategies 45. What unique feature does polyaniline offer for its applications? A. High thermal resistance B. Versatility and stability C. Inexpensive material cost D. Low weight 46. What is a significant limitation of newer materials compared to traditional materials? A. Greater environmental impact B. More complex manufacturing processes C. Higher cost of production D. Limited thermal stability 47. How does limited thermal stability affect the use of materials in high-temperature applications? A. It restricts usage in aerospace and automotive industries. B. It increases the material strength. C. It allows for broader application in extreme conditions. D. It enhances the material's electrical conductivity. 48. What is one of the key challenges in achieving high material quality? A. Utilizing recycled materials effectively B. Standardized processes across all industries C. Achieving high purity and reproducibility D. Balancing cost with performance 49. What can result from inconsistencies in processing materials? A. Variations in physical and chemical properties  B. Enhanced material longevity C. Increased efficiency in device performance D. Consistent product quality across batches 50. What effect do processing challenges have on device performance? A. They can decrease reliability and efficiency. B. They have no effect on device efficiency. C. They lead to increased reliability in performance. D. They ensure consistency in the final product. 51. Which industry is least likely to be impacted by limited thermal stability of materials? A. Construction B. Aerospace C. Pharmaceuticals D. Electronics 52. What is a common source of variations affecting material processing? A. Standardized raw materials B. Unchanging manufacturing protocols C. Consistent environmental conditions D. Variations in starting materials 53. What ultimate impact can processing inconsistencies have on user experience? A. Increased product cost B. Improved reliability of devices C. Decreased product quality D. Enhanced user satisfaction 54. What is one benefit of smart polymers in electrical systems? A. They can adapt based on environmental changes. B. They generate electricity independently. C. They provide a constant electrical resistance. D. They eliminate the need for batteries. 55. How do conductive polymers contribute to flexible electronics? A. They facilitate the integration of heavy components. B. They allow for the production of non-bendable devices. C. They increase the rigidity of electronic systems. D. They reduce the weight of electronic devices. EE2317 -ANSWER SHEET- Name: ___________________________________________ Yr.: and Sec:.____________ Date: ________________ 1. ________ 21. ________ 41. ________ 2. ________ 22. ________ 42. ________ 3. ________ 23. ________ 43. ________ 4. ________ 24. ________ 44. ________ 5. ________ 25. ________ 45. ________ 6. ________ 26. ________ 46. ________ 7. ________ 27. ________ 47. ________ 8. ________ 28. ________ 48. ________ 9. ________ 29. ________ 49. ________ 10. ________ 30. ________ 50. ________ 11. ________ 31. ________ 51. ________ 12. ________ 32. ________ 52. ________ 13. ________ 33. ________ 53. ________ 14. ________ 34. ________ 54. ________ 15. ________ 35. ________ 55. ________ 16. ________ 36. ________ 17. ________ 37. ________ 18. ________ 38. ________ 19. ________ 39. ________ 20. ________ 40. ________