Air Supply System Components include which parts?

• A. Compressor, governor, tanks, and lines
• B. Alternator and starter
• C. Fuel injectors
• D. Radiator and cooling fan

Answer: (A)

The main idea is that a pneumatic air supply system uses four key parts to generate and deliver pressurized air: a compressor, a governor, storage tanks, and the lines that carry the air to the devices that need it. The compressor creates the high-pressure air from ambient air. The governor monitors the system pressure and turns the compressor on and off to keep the pressure within safe, usable limits. Storage tanks provide a reserve supply so equipment can operate smoothly even if the compressor isn’t running constantly. The lines (pipes and hoses) transport the pressurized air from the compressor and tanks to actuators, valves, brakes, and other pneumatic components. The other options belong to different systems—electrical, fuel, or cooling—so they don’t form part of the air supply system.