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LSD -NOV-DEC 2024 AU QP ANS

  5. Define Coronary Atherosclerosis. Coronary atherosclerosis is a condition in which fatty deposits, cholesterol and other substances accumulate inside the walls of the coronary arteries, forming plaques and narrowing the arteries. This reduces blood flow to the heart muscle and may lead to coronary artery disease. 6. What are the causes of Coronary Artery Disease? Major causes/risk factors include: ·          High blood cholesterol ·          High blood pressure ·          Smoking and tobacco use ·          Diabetes mellitus ·          Obesity ·          Lack of physical activity ·          Unhealthy diet ·          Stress ·   ...
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NOV-DEC 2024 ΜΕ 3791-MECHATRONICS and IoT - ANSWERS

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  NOV-DEC 2024 ΜΕ 3791-MECHATRONICS and IoT PART A-(10 x 2 = 20 marks) ANSWERS 1. Provide examples of optical sensors and their applications in mechatronics. Answer: Examples: Photodiodes, phototransistors, and infrared sensors. Applications: Used in object detection, position sensing, and safety systems in automation and robotics. 2. How do brushless permanent magnet DC motors differ from traditional brushed DC motors in terms of their construction and operation? Answer: Brushless motors have no brushes and use electronic commutation; brushed motors use mechanical commutators and brushes. Brushless motors are more efficient, reliable, and require less maintenance. 3. Sketch the VI characteristics of a TRIAC. Answer: 4. Draw the Darlington pair circuit. Answer: 5. List any two communication protocols used in IoT devices. Answer: 1.       MQTT (Message Queuing Telemetry Transport) 2.       CoAP (Cons...
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