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Module Assessment
1. What is the engine efficiency rating of a typical gasoline-powered vehicle?
A. 2%
B. 25%
C. 40%
D. 75%
2. What is the engine efficiency rating of a typical diesel-powered vehicle?
A. 2%
B. 25%
C. 40%
D. 75%
3. If the price of gasoline is $3.40 per gallon and the price of diesel fuel is $3.42 per gallon, which fuel would be most economical for normal operation of your vehicle?
A. diesel
B. gasoline
C. they would have the same operating costs
D. cannot be determined
4. Which type of engine uses plant oils to primarily power the vehicle?
A. biodiesel
B. hydrogen
C. EVs
D. CNG
5. Which type of engine would produce the least amount of engine exhaust that potentially damages the environment?
A. gasoline
B. EVs
C. CNG
D. diesel
6. How can the viscosity of a liquid be decreased?
A. cool the liquid
B. increase the pressure above the liquid
C. heat the liquid
D. the viscosity of a liquid cannot be changed
7. Biodiesel fuel with a rating of B20 would have a diesel proportion of ____ % and an oil proportion of _____%.
A. 20%; 80%
B. 2%; 98%
C. 98%; 2%
D. 80%; 20%
8. All of the following fuel sources would be expected to have a current limitation on the number of available public fueling stations in the U.S.
except
:
A. CNG.
B. diesel.
C. hydrogen.
D. E-85.
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