What should be done if the gas cylinder at home catches fire?

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Water should be sprinkled

Sand, soil should be put at it

Cylinder should be covered with wet blanket

One should run away

answer is C.

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Detailed Solution

Concept: A gas cylinder could catch fire if we're negligent. Typically, when a gas cylinder leaks, it emits a strong odor of ethyl mercaptan. It's important to take this seriously. Now that a cylinder has caught fire, there are two ways calamity could strike.
The fire may cause the cylinder to become extremely hot. Thus, as a result of these, the cylinder's temperature rises and the pressure of the gas inside the cylinder rises as well. Despite the gas cylinder's pressure valves, it is never advisable to allow the cylinder's temperature and pressure to rise. Serious mishaps could result from this.
It truly indicates that there is a leak in the cylinder when a gas cylinder catches fire. Most often, it is seen that the gas leak completely fills a closed space or a location where it is difficult for the gas to diffuse in the surrounding air. Because of this, an explosion can result from a small fire when the air in the room becomes combustible.
Watering the cylinder or covering it with sand or soil won't help in this situation. The cylinder should be covered with a moist blanket in this situation. The blanket's moisture prevents the cylinder from heating up to a high temperature. As a result, the gas pressure inside a cylinder is under control.Once more, the moist blanket will stop any further gas leaks.
The cylinder should be covered with a wet blanket in this situation as it is the best solution. Due to the wetness of the blanket, a high temperature cannot be reached inside the cylinder. As a result, control over the pressure of the gas inside a cylinder exists. The moist blanket will once more stop any more gas leaks.
Hence, the correct option is 3.

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