In a pneumatic work station sequence, which option correctly lists the order from inlet to outlet?

In a pneumatic work station sequence, which option correctly lists the order from inlet to outlet?

• A. Filter - regulator - lubricator
• B. Lubricator - regulator - filter
• C. Regulator - lubricator - filter
• D. Lubricator - filter - regulator

Answer: (A)

The sequence being tested is how a compressed-air supply is prepared for pneumatic tools: first clean the air, then set the pressure, and finally add lubrication. A filter comes first to remove particulates and moisture so the downstream components stay clean and function properly. Next the regulator lowers and stabilizes the pressure to a usable level for the equipment. Finally, the lubricator introduces a small amount of oil into the air stream to reduce wear and help moving parts operate smoothly. If lubrication were placed before filtration or regulation, oil could carry contaminants or cause improper pressure to reach the tool, leading to more wear or damage. Keeping the order as filter, regulator, then lubricator ensures clean, properly pressurized air is lubricated just before it reaches the actuator.

The sequence being tested is how a compressed-air supply is prepared for pneumatic tools: first clean the air, then set the pressure, and finally add lubrication. A filter comes first to remove particulates and moisture so the downstream components stay clean and function properly. Next the regulator lowers and stabilizes the pressure to a usable level for the equipment. Finally, the lubricator introduces a small amount of oil into the air stream to reduce wear and help moving parts operate smoothly. If lubrication were placed before filtration or regulation, oil could carry contaminants or cause improper pressure to reach the tool, leading to more wear or damage. Keeping the order as filter, regulator, then lubricator ensures clean, properly pressurized air is lubricated just before it reaches the actuator.