When a coolant container is part of a pressurized system, you can: | Semi-Truck or Big-Rig Drivers (CDL) General Knowledge Test | Drivers License Practice Tests | Driverstest.info

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When a coolant container is part of a pressurized system, you can:

When a coolant container is part of a pressurized system, you can:

Use water only in the cooling system.

Cook an egg on the engine for a quick snack.

Drain the cooling fluids and release the air pressure.

Check the coolant level of a hot engine.