When dealing with a coolant container in a pressurized system, which statement is true?

In a pressurized cooling system, the correct statement is that you can check the coolant level of a hot engine, though it is advisable to take precautions. Checking the coolant level helps ensure that the engine operates within safe temperature ranges, preventing overheating. However, it is typically not safe to remove the radiator cap while the engine is hot because the pressurized coolant can cause hot coolant or steam to escape, which could result in burns or injury.

While you can visually check the coolant level when the engine is hot, it is important to ensure that you do so with care, ideally using a suitable method that minimizes the risk of injury. Keeping the system properly filled with coolant is essential for effective engine cooling and overall vehicle performance.

Each of the other statements fails to recognize safety precautions or proper maintenance procedures. For instance, removing the radiator cap while the engine is hot can be dangerous, and checking antifreeze is crucial for maintaining the cooling system. Additionally, pouring water into a hot engine can lead to thermal shock, which might damage engine components.