1. If the petrol engine used in this experiment at a full throttle setting (throttle valve fully open) consumes 20ml of fuel in 2 mins and 15 sec, what is the mass flow rate of fuel? How much power has been input to the system?
2. How would you expect the fuel consumption and performance (output power and efficiency) of the engine at a part throttle setting (throttle calce partially closed) to compared to the engine at a full throttle setting?
3. List and briefly describe the four stages or processes in the operation of a four-stroke internal combustion engine. What are the two ways in which fuel combustion can be initiated in an internal combustion engine?