Question

Which of the following is wrong as a method of fire prevention common to dangerous goods of Class 3? (1) Store in a cool place. (2) Do not close the container and store it with air permeability. (3) Do not contact with water. (4) Keep away from fire. (5) Be careful of damage or corrosion of the container.

Answer 1

Wrong method of fore prevention.

1.) store in cool place - this is right because storing at cool place will decrease the temperature of the goods and will not ignite them. -

(wrong answer)

2.) Don't close the container and store it in air permeability. - This is wrong because if we aren't closing them they will create some vapour pressure above the open space and due to presence of oxygen the fire may be ignite.

So it is a wrong method.

(correct answer.)

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3.) Don't contact with water - there are some dangerous goods like white phosphorus and sodium which catches fire if we placed them in water.

So it is correct way to prevent the fire -

(wrong answer.)

4.) Keep away from fire- it is correct way because if we keep the dangerous goods near to fire they may also catches fire. -

( wrong answer)

5.) Be careful of damage or corrosion of the container - because if there will be any damage and corrosion to the container the goods will leaking through the container and react with oxygen and catches the fire.

(wrong answer.)

So the correct answer is (2).