Air Break Practice Test

Results

#1. Which of the following is the best way to inspect an air compressor?

With the engine off

With the engine on and the transmission in neutral

With the engine on and the transmission in high gear

With the engine on in and the transmission in first gear

To check whether the air compressor is properly mounted and secure, you may need to touch it (and its engine belt, if it’s belt driven). The air compressor runs whenever the engine is on. It produces compressed air at a temperature of about 200 °C (about 400 °F). Therefore, it’s safest to turn off the engine so the air compressor and any belts are off as well.