How would I be able to experimentally test the efficiency of conventional and alternate sources of car fuel?

We are trying to determine the efficiency of unleaded gasoline, pure ethanol, 10% ethanol, B20, and B100 (using Jatropha biofuel). Most likely, we will try to use a basic self built calorimeter to test for how long the fuels burn, how quickly they reach their maximum heat (and what that maximum heat is), the time [...]

How to test efficiency of homemade biofuel?

How do I test the efficiency of homemade biofuels made from vegtable oil and ether? How do I determine how well they work to run a car compared to diesel fuel? (For science fair project)

Part 2 – Test For Boat Liscense?

What should a motorboat operator do when approaching a sailing vessel head-on? a. take early action to keep well away from the sailing vessel b. sound one blast on a horn and turn to port c. speed up to avoid colliding d. maintain your present course and speed # What symbol on a regulatory marker [...]