What type of car is commonly used to haul bulk liquids?

The type of car commonly used to haul bulk liquids is the tank car. Tank cars are specially designed with cylindrical containers that are built to store and transport liquids safely. These cars are equipped with features that ensure the stability and security of the liquid cargo during transit, minimizing the risk of spillage.

Tank cars come in various designs depending on the type of liquid being transported, whether it is crude oil, chemicals, or food-grade liquids. The robust construction of these cars helps them withstand high pressure and resist corrosion, making them ideal for carrying hazardous and non-hazardous materials alike.

Other types of cars, like box cars, flat cars, and gondolas, are not specifically designed for liquids. Box cars are typically used for transporting dry goods, flat cars are used for heavy loads or cargo that does not require enclosure, and gondolas are designed for bulk materials like coal or gravel rather than liquids. This specialized design is what makes tank cars the correct choice for transporting bulk liquids.