Saved Bookmarks
| 1. |
In case of a fire, before the fire men use the water, they shut off the main electrical supply for the area. Explain why they do this. |
|
Answer» Fire men use water to put out fire. Water containing dissolved salts is a good conduc¬tor of electricity. If fire men pour water on fire the electrical appliances near the fire may be wet if anybody touches those appliances they may have electric shock. In order to avoid people to get electric shock due to wet electrical appliances the fire men shut off electrical supply before they use water |
|