- What are hand tools?
- Hand tools are non-powered tools that are used manually. Such as shovels, pickaxes, screwdrivers, painting brushes, hand saws, hacksaws, pipe wrenches, spanners, etc.
- What are power tools?
- Power tools are operated by external force, such as electrical power tools like angle grinders, portable and fixed electrical saws, power drills, etc.
- Pneumatic tools, which are powered by compressed air, such as pneumatic drills and jackhammers.
- Hydraulic tools such as jacks.
- Powder-actuated tools such as nail guns.
- What is a dead man switch?
- A switch that is designed to be activated or deactivated if the worker becomes incapable due to loss of consciousness or any other abnormality.
- (It automatically shuts off when the trigger is released and stops the grinder).
- The trigger lock switch shall not be used in the angle grinder and sandblasting trigger.
- What is RPM?
- RPM, which is the abbreviated form of "revolution/rotation per minute," is a unit that shows how many times an object completes a cycle in a minute.
- Which RPM shall be higher, wheel/disk or grinder?
- Abrasive wheel capacity/RPM should be greater than or equal to the grinder.
- If disk capacity is less than the grinder, the wheel/disk may explode/damage and result in an accident.
- What are the hazards associated with angle Grinder usage?
- Fire, electric shock, noise, ergonomic hazards (improper posture), dust and fumes, etc.
- What is an angle grinder used for?
- An angle grinder is used for cutting, grinding, buffing, and polishing.
- Explain how to use an angle grinder safely?
- Obtain a hot work permit.
- The grinder should be inspected.
- Use the right disk for the right job (the cutting disk shall not be used for grinding).
- Before use, inspect disks for defects, cracks, and wear.
- Do not use a defective disk/wheel.
- Disk RPM shall be greater than the grinder.
- Do not remove the safety guard mounted on the grinder to prevent flying particles.
- Use proper PPE such as a face shield, safety glasses, apron, FRC, leather gloves, and respiratory protection (as needed).
- Remove combustible and flammable materials nearby.
- Nobody shall stand in line of fire.
- The operator/worker should be trained in grinder usage.
- Do not leave the grinder unattended.
- Ensure the dead man switch is in place and functional.
- Trigger lock is prohibited.
- Always use two hands; keep hands away from the rotating wheel.
- Do not wear loose clothes, which may get entangled in the wheel.
- How to care for and maintain hand tools?
- Tools must be kept clean and free from corrosion
- Keep metal parts lightly oiled
- Remove burrs from edges of tools and heads of chisels.
- Tools that are not in use must be stored separately
- A good worker regularly inspects his tools
- Do not use tools without handles
- How to prevent accidents of power tools?
- The operators should wear face shields or safety glasses
- Power tools should be placed in the storeroom after use
- Power tools should be protected by guards
- Pneumatic hoses or electric cables of power tools should not pass through passage ways.
- The electrical power tools should be properly earthed
- Never horseplay with the hose of pneumatic tools
- What are the causes of accidents with hard tools?
- Due to the wrong way of using tools.
- Due to the defective condition of tools
- Due to failure to use the right tools for the right job
- Due to the wrong way of carrying tools
- Due to strong tools, unsafe
- Give a brief about grinding?
- A proper wheel shall be used as per the grinding M/C’s specification
- All the grinding M/Cs shall be used with a wheel guard
- Grinding cables shall not mingle with welding cables
- All the cables shall be protected from damage
- Provide a face shield with a safety helmet
- Never use a fracture wheel
- Excessive tightening of maintenance is dangerous
- All guards should be in position before the machine is operated
- The speed of the grinding should match the speeds of the grinding machines
- Only a skilled person should handle this work
- Testing of the wheel is necessary
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