In Norwegian road safety and vehicle operation, why must an internal combustion engine never be kept running inside a closed private garage?
Answer and explanation
Correct answer: A. Lethal carbon monoxide (CO) gas accumulates quickly
- Step 1: Combustion engines produce lethal carbon monoxide gas; without ventilation, CO binds to hemoglobin in red blood cells, starving the brain and causing death. Answer: Lethal carbon monoxide (CO) gas accumulates quickly. Why not the others: the alternative options do not accurately reflect vehicle safety standards, statutory requirements, or physical mechanics under Norwegian road regulations.
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