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Trucks and buses are equipped with two types of horns: air-powered klaxons and electric horns. Air-powered klaxons are activated by an air-pressure valve lever on the dashboard or by an outstretched hand. Drivers use the horn to signal other motorists and to make themselves heard. Air-powered klaxons are more difficult to install and are usually …

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You may have heard a fire truck called a fire engine, but what is the difference? Fire trucks are large, equipped vehicles that contain water and firefighting equipment. They are also often equipped with ladders and are used for rescue and ventilation, among other functions. Fire engines also have a pump attached to them. Both …

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