Air Break Practice Test

Results

#1. It is important to keep compressed air as dry as possible because

humid air may cause incorrect readings on the pressure gauges.

humid air is associated with low air pressure.

moisture may cause air brakes to rust.

moisture may freeze and cause brake failure.

Water and oil from the compressor can collect at the bottoms of the air tanks. If the air tanks are not drained regularly, the water can freeze and cause brake failure. Some air brake systems include an alcohol evaporator to prevent ice from forming in the air brake system. (Alcohol has a lower freezing point than water.)