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ME3791-MEXHATRONICS AND IoT APR/MAY 2025 QP&ANS

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APR/MAY 2025 ΜΕ 3791-MECHATRONICS and IoT PART A-(10 x 2=20 marks) 1. Is a smartwatch a mechatronic product? Justify your answer. Yes, a smartwatch is a mechatronic product. It integrates mechanical components (the physical casing, buttons, and haptic feedback motors), electronics (the microcontroller, sensors like accelerometers and heart rate monitors, and the display), and computer software (the operating system and applications) to perform a complex function. This blend of disciplines is the core definition of mechatronics. 2. Define 'response time' and 'lag' with reference to a sensor. •            Response time is the time a sensor takes to reach a specified percentage (e.g., 90%) of its final output value after a sudden change in the measured input. •            Lag refers to the delay between a change in the physical quantity being measured and the sensor's initial r...
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 APRIL/MAY 2026. OCS352-IoT CONCEPTS AND APPLICATIONS PART A-(10×2=20 marks) 1. Define Internet of Things (IoT). 2. Compare between edge and cloud computing. 3. What is the role of sensors in IoT? 4.Lit the different types of actuators.  5.Define RFID.  6. How IoT can be used in embedded systems? 7. What is interfacing? 8. What is the purpose of GPIO pins? 9 .Compare between smart mobility and smart transport. 10. List any two use cases of smart home automation. PART B-(5x13=65 marks) 11. (a) Illustrate the layered architecture of lot with neat diagram and explain the functions of each layer. Or (b) (i)Discuss in detail the major enabling technologies for IoT. (8)  (ii) Compare and contrast between oneM2M and IoTWF architectures. (5) 12.(a)  (i) Write a detailed note on sensing, communication and processing layers in IoT systems. (8) (ii) Compare and contrast between bluetooth and zigbee technologies.(5) Or (b) With a functional diagram, explain in detail the ke...
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APRIL/MAY 2026. ME3491-THEORY OF MACHINES AU QP

 APRIL/MAY 2026. ME3491-THEORY OF MACHINES PART A-(10x220 marks) 1. State the significance of velocity and acceleration polygons. 2. Sketch any two inversions of a double slider crank chain. 3. Distinguish between a simple gear train and an epicyclic gear train. 4. Sketch out the configuration of a reverted gear train. 5.What are the various types of belts used for the transmission of power?  6.Give two examples for antifriction bearings.  7. List any two examples for applied and constrained forces. 8. State D' Alembert's principle. 9. What do you mean by dynamic balancing? 10. What are the causes and effects of vibrations? PART B-(5x13= 65 marks) 11.(a). PQRS is a four-bar chain with link PS fixed. The lengths of the links are PQ = 62.5 mm: QR = 175 mm, RS = 112.5 mm,; and PS = 200 mm. The crank PQ rotates at 10 rad/s clockwise. Draw the velocity and acceleration diagram when angle QPS = 60° and Q and R lie on the same side of PS. Find the angular velocity and angular ac...
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APR-MAY 2026 OBT356-LIFESTYLE DISEASES AU QP

  APR-MAY 2026 OBT356-LIFESTYLE DISEASES AU QP PART A (10 x 2=20 marks) 1. Define obesity. Obesity is a chronic medical condition characterized by an excessive or abnormal accumulation of body fat that poses a risk to health, typically clinically defined by a Body Mass Index (BMI) of \(30kg/m2) or higher.   2. Mention two types of diabetes mellitus. Ø   Type 1 Diabetes: An autoimmune disorder where the immune system destroys insulin-producing pancreatic cells, causing an absolute insulin deficiency. Ø   Type 2 Diabetes: A metabolic disorder characterized by insulin resistance, where the body's cells fail to respond effectively to insulin.   3. State biomarkers. Biomarkers (biological markers) are objectively measured, quantifiable indicators of a biological state, pathogenic process, or pharmacological response to a therapeutic intervention (e.g., blood glucose or cholesterol levels).   4. List any two causes of lung cancer. Ø   Tobacco Smoking: The pr...
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