Final answer:
True, air-powered tools should always be lubricated before use to reduce friction, increase efficiency, and prolong the lifespan of the tool.
Step-by-step explanation:
True, air-powered tools should always be lubricated before use. Lubrication helps to reduce friction between the moving parts of the tool, which in turn increases efficiency and prolongs the lifespan of the tool.
Without proper lubrication, the friction generated between the parts can lead to heat energy being produced, causing wear and damage to the tool.