One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 331
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True or False: Foam extinguishers mainly spray foam at the container walls, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the fire. ( ) Answer:√
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. ( Right )
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. ( √ )
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. ( √ )
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. ( √ )
True or False: Foam extinguishers mainly spray foam at the container walls, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the fire. ( Right )
Correct – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. ( Right )
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. ( v )
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. Yes
A foam fire extinguisher primarily sprays foam at the wall of the container, causing the foam to flow back and cover the burning surface, thereby blocking the oxygen in the air and stopping the combustion. (Correct)