QuestionJune 30, 2025

Technician A says that a slightly lean mixture offers good fuel economy and low exhaust emissions Technician B says that a mixture that is too rich fouls spark plugs and causes incomplete burning. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

Technician A says that a slightly lean mixture offers good fuel economy and low exhaust emissions Technician B says that a mixture that is too rich fouls spark plugs and causes incomplete burning. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B
Technician A says that a slightly lean mixture offers good fuel economy and low exhaust emissions Technician B says that a mixture that is too rich fouls spark plugs and causes incomplete burning. Who is correct? a. Technician A b. Technician B c. Both Technician A and Technician B d. Neither Technician A nor Technician B

Solution
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Answer

c. Both Technician A and Technician B Explanation 1. Evaluate Technician A's statement A slightly lean mixture can improve fuel economy and reduce emissions because it uses less fuel and burns more completely. 2. Evaluate Technician B's statement A mixture that is too rich can indeed foul spark plugs and cause incomplete burning due to excess fuel.

Explanation

1. Evaluate Technician A's statement<br /> A slightly lean mixture can improve fuel economy and reduce emissions because it uses less fuel and burns more completely.<br />2. Evaluate Technician B's statement<br /> A mixture that is too rich can indeed foul spark plugs and cause incomplete burning due to excess fuel.
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