Examen
BECC MOD 3 TEST WITH COMPLETE SOLUTIONS(RATED A)
- Grado
- Institución
What is the fourth requirement needed in the fire tetrahedron for flames to exist? A. Uninhibited chain reaction B. Uniterm-1nhibited chemical reaction C. Combustion D. Smoke - ANSWER-B. Uninhibited chemical reaction Normal oxygen content in a atmosphere is ....... %. A. 19.5 to 22 B. 19...
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