Question 7 (5 points)

Which type of smoke indicates excessive fuel being burned in the combustion chamber?

A) Blue
B) White
C) Grey
D) Black



Answer :

Final answer:

Black smoke signifies excessive fuel being burned in the combustion chamber.


Explanation:

Black smoke indicates excessive fuel being burned in the combustion chamber. When there is incomplete combustion, unburned fuel particles escape, creating a visible black smoke. This is commonly seen in diesel engines that are not burning fuel efficiently.


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