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Engine Performance Midterm

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Engine Performance Midterm Winter-blend gasoline a. vaporizes more easily than summer-blend gasoline b. has a higher RVP c. can cause engine driveability problem if used during warm weather d. Al ... l of the above - ✔✔D Vapor lock can occur a. as a result of excessive hear near fuel line b. if a fuel line is restricted c. both a and b d. neither a nor b - ✔✔C Technician A says that spark knock, ping, and detonation are different names for abnormal combustion. Technician B says that any abnormal combustion raises the temperature and pressure inside the combustion chamber and can cause severe engine damage. Which technician is correct? Technician A only Technician B only Both Technicians A and B Neither Technician A nor B - ✔✔C Technician A says that the research octane number is higher than the motor octane number. Technician B says that the octane rating posted on fuel pumps is an average of the two ratings. Which technician is correct? Technician A only Technician B only Both Technicians A and B Neither Technician A nor B - ✔✔B Technician A says that in going to high altitudes, engines produce lower power. Technician B says that most engine control systems can compensate the air-fuel mixture for changes in [Show More]

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