Final answer:
The muzzle end of the powder-actuated tool must have a protective guard to prevent accidental firing or discharge. This statement is true.
Step-by-step explanation:
The statement is True. The muzzle end of a powder-actuated tool must have a protective shield or guard that will not allow the tool to operate unless depressed. This safety feature is designed to prevent accidental firing or the discharge of the tool without proper control. When the guard is depressed against a surface, it enables the tool to operate and fire the powder load, ensuring the tool is used safely and effectively.