Georgia Commercial Driver License Practice Test

What can freeze in an air compressor tank if temperatures are below freezing?

1. Water

2. Oil

3. Air

4. Fuel

The correct answer is: Water

Water can freeze in an air compressor tank if temperatures fall below freezing. Compressors often draw in ambient air, which can contain moisture. As the air is compressed, the temperatures rise, and any moisture present can condense into liquid water. If not properly drained, this water can accumulate in the tank. In freezing temperatures, this accumulated water can solidify, leading to potential blockages and damage to the compressor system. It is important to regularly drain the moisture from the air compressor tank to prevent ice formation, especially in cold weather conditions. Oil, air, and fuel do not freeze under typical operating conditions of an air compressor; thus, they are not the main concern in freezing temperatures.