Question # 01 (05 M)

Three engines (EFI, Diesel and Petrol) are tested on dynamometer. The results are shown in table given below.

1. Estimate the constants of each engine based on quadratic relation.
2. Plot the equations with the actual data on a single graph.
3. Estimate the errors and form a table.
4. Evaluate the BHP for all three engines at 1500 rpm.
5. Why we use quadratic relation for rpm vs power, instead of linear relationship? (Use your Internal Combustion Engine knowledge to answer this question). To support your answer, draw lines of linear and quadratic equation on a single plot. (Students are encouraged to use subplot command to present your analysis)

Additional Information

Use different colour, marker and line type for each curve. Label axes, show title, open grid and show text next to each line defining type of engine.

Question # 02 (05 M)