Oil and water typically collect in which component of the air system?

Oil and water typically collect in which component of the air system?

• A. The air compression tanks
• B. The fuel tank
• C. The hydraulic reservoir
• D. The coolant reservoir

Answer: (A)

In air brake systems, the air tanks that store compressed air are where oil and water tend to collect. When the compressor compresses air, the air cools and moisture condenses into liquid water. The compressor also uses oil for lubrication, and some of that oil can mix with the air and condense in the tanks. Since these tanks hold high-pressure air, any liquid that forms collects there and must be drained regularly to keep the system functioning. The other reservoirs—fuel, hydraulic, and coolant—hold their respective fluids and aren’t part of the compressed-air supply.

In air brake systems, the air tanks that store compressed air are where oil and water tend to collect. When the compressor compresses air, the air cools and moisture condenses into liquid water. The compressor also uses oil for lubrication, and some of that oil can mix with the air and condense in the tanks. Since these tanks hold high-pressure air, any liquid that forms collects there and must be drained regularly to keep the system functioning. The other reservoirs—fuel, hydraulic, and coolant—hold their respective fluids and aren’t part of the compressed-air supply.