MEK Exit Exam • Set 3 Question 8 of 30
For good combustion,the color of the exhaust from diesel engine should be
✓
Direct Answer
Option C: colourless
For efficient combustion in a diesel engine, the exhaust gases should be colourless, indicating complete burning of the fuel. Any discolouration, such as black, blue, or white smoke, signifies incomplete combustion or other issues needing attention.
All Options
A
bluish white
B
light brown
C
colourless
(Correct Answer)
D
light grey
Detailed Explanation & Context
For efficient combustion in a diesel engine, the exhaust gases should be colourless, indicating complete burning of the fuel. Any discolouration, such as black, blue, or white smoke, signifies incomplete combustion or other issues needing attention.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).
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