It is dangerous to extinguish fire caused by an electric short circuit with the use of :a)sandb)carbon dioxidec)waterd)carbon monoxideCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Because water is the good conductor of electricity and while throwing it on the short circuit it may conduct electric current vigorously and could be dangerous more.

Answer

As fire is caused by electricity. and water  is good conductor of elcectricity. it can cause electrocution and harm the person Exguishing the fire

Answer

Why water is not safe to extinguish fire caused by an electric short circuit:

Introduction: When dealing with a fire caused by an electric short circuit, it is crucial to use the appropriate fire extinguishing agent. Water is not recommended in this situation due to several reasons.

Electricity and water: Water is a good conductor of electricity. When water comes into contact with an electrically charged source, it can conduct the electric current and increase the risk of electric shock. This can be extremely dangerous for anyone attempting to extinguish the fire.

Risk of electrical shock: Electric short circuits involve a high concentration of electrical energy, and using water as an extinguishing agent can result in severe electrical shock. The electric current can pass through the water and potentially harm or even kill the person trying to extinguish the fire.

Spreading the fire: Water may not effectively extinguish electrical fires because it does not remove the source of the fire, which is the electrical current. Instead, it can spread the fire by splashing the ignited materials or causing the short circuit to spread to other electrical components.

Damage to electrical equipment: Water is a corrosive substance and can cause damage to electrical equipment when applied directly. It can lead to short circuits, equipment malfunction, and even permanent damage. This can result in further hazards and financial losses.

Recommended fire extinguishing agents: Carbon dioxide (CO2) is a commonly used fire extinguishing agent for electrical fires. It is non-conductive and does not leave any residue, making it safe to use on electrical equipment. CO2 displaces oxygen, removing the fuel source for the fire and effectively extinguishing it. Sand is also a suitable option as it suffocates the fire by cutting off the oxygen supply.

In conclusion, water is not safe to use when extinguishing fires caused by an electric short circuit due to the risk of electrical shock, potential spread of the fire, and damage to electrical equipment. It is important to use appropriate fire extinguishing agents such as carbon dioxide or sand to effectively and safely extinguish electrical fires.

Similar Class 8 Doubts

Water cannot be used to extinguish fire caused due to short circuiting

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Fuse wire is used in electric circuit to prevent

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why do impurities dissolved in water increase its conductivity? Related: Introduction to Electric Circuit, Chemical Effects of Electric Current, Class 8 Science

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