On your way home from class you spot your neighbour’s van on the side of the road. Later you run into him and he lets you know that the vehicle has finally quit after 160 000 miles Assume the van has been driven at an average speed of 45 miles-per-hour at 2000 revolution per minute (RPM) engine speed. The vehicle is equipped with a four-stroke 4.0 L V6 engine. Based on this information answer the following questions:
a. How many revolutions has the engine experienced?
b. How many spark plug firings have occurred in the entire engine?
c. How many intake strokes have occurred in one cylinder?
d. How many exhaust strokes have occurred in one cylinder?