OSHA 30- Hand and Power Tools

OSHA 30- Hand and Power Tools 1. What type of switch is designed to cut off power to a machine when pressure is released? A constant pressure switch. 2. What do machine guards protect workers from? They protect against hazards at the point of operation, in-running nip points, and rotating parts. 3. Why should you keep your fingers off the switch or buttons while using power tools? To prevent accidentally starting the tool. 4. What protection is required at each nip point where a belting sanding machine runs onto a pulley? Guards must be installed. 5. Is it true that the guard must be in place when using a handheld portable grinder with the hard wheel in operation? Yes, that is true. 6. Can you safely remove the third "grounding" prong from a male plug to fit it into a two-pronged outlet? No, that is false. 7. What must be installed when using pneumatic tools to prevent attachments from being ejected during operation? A safety clip. 8. For air hoses larger than 1/2 inch in diameter, what must be installed? A safety excess flow valve. 9. What protective equipment should be worn when using jackhammers and chipping guns? Foot protection, safety glasses, and tools with heavy rubber grips. 10. At what pressure must airless spray guns include an automatic or visible safety device to prevent accidental trigger pulling? More than 1000 pounds per square inch. 11. What are some hazards associated with pneumatic tools? Tripping hazards, excess pressure, and the potential for air hoses to whip. 12. If a powder-actuated tool misfires, how long should it be held in the operating position before trying to fire it again? For at least 30 seconds. 13. How much pressure must a powder-actuated tool require to operate against a work surface? It must not operate until pressed against the surface with at least 5 pounds of force greater than the tool's total weight. 14. When using a high-velocity tool, how close can fasteners be driven to an unsupported edge or corner of material? No closer than 3 inches. 15. Is it safe to use a powder-actuated tool in a flammable or explosive atmosphere? No, that is true; it should not be used in such conditions. 16. What is the maximum exposure angle allowed for safety guards on portable grinders? 180 degrees. 17. Should routers, planers, laminate trimmers, sheers, and jigsaws have a positive “on-off” control? Yes, that is true. 18. Are constant pressure switches required for all handheld power drills, fasteners, and grinders? Yes, that is true. 19. What safety feature must the muzzle end of a powder-actuated tool have? A protective shield or guard that ensures the tool does not operate unless it is depressed against the work surface. 20. What are the primary causes of incidents and injuries in the workplace? Unsafe acts and unsafe conditions. 21. What does Section 5 of the General Duty Clause in federal OSHA requirements state about the employer's responsibility? Employers must furnish each employee a workplace that is free from recognized hazards that could cause death or serious physical harm.