In this exam there was total 40 questions. The questions and possible solutions are given below.  1. Draw stress strain diagram of mild steel 2. What are the factors that affects thermal comfort? Factors that affects thermal comfort: 1. Temperature: The ambient temperature plays a significant role. It should be within a range that suits individual preferences and the specific activity being performed. 2. Humidity: High humidity can make a space feel warmer, while low humidity can lead to dryness and discomfort. Maintaining optimal humidity levels is crucial. 3. Air Velocity: The speed of air movement can impact how we perceive temperature. Proper ventilation and air distribution help maintain comfort. 4. Clothing: The type and amount of clothing worn affect an individual's thermal comfort. Dress code and personal attire should align with the indoor climate. 5. Metabolic Rate: The level of physical activity influences how much heat our bodies generate. Spaces with varying activity l