Milling Machine Safety

Explanation
It is important to ensure that cutters are correctly ground and in good condition because they are used for cutting various materials. If the cutters are not properly ground, they may not be able to cut effectively and can cause damage to the material or the tool itself. Similarly, if the cutters are in poor condition, they may not function properly and can pose a safety risk to the user. Therefore, it is essential to check the condition and sharpness of the cutters before using them.

Explanation
The correct answer is "locked off". This means that the power should be disabled or turned off in order to prevent any accidental start-up of the machine. By locking off the power, it ensures the safety of individuals and prevents any potential harm or accidents that may occur if the machine were to start unexpectedly.

Explanation
When setting up a job, it is important to always move the table with the work as far away from the cutter as possible. This is because the cutter is a tool that is used to cut or shape materials, and it can be dangerous if it comes into contact with the work or the operator. By moving the table away from the cutter, it reduces the risk of accidents and allows for safer and more efficient work.

Explanation
The correct answer is collet. A collet is a device used to hold a cutting tool or workpiece securely in place. It is an essential component in various machining operations. By ensuring that the cutter and collet are secured, it prevents any movement or slippage during the cutting process, ensuring accurate and precise results.

Explanation
Taking an excessively heavy cut or feed can cause the cutter to fracture and potentially harm the operator. This means that the amount of material being removed or the force applied should not be too high. It is important to maintain a balance and avoid putting excessive strain on the cutter, ensuring the safety of both the equipment and the person operating it.

Explanation
When using a cutter, it is important to check the speeds and feeds and feed the work against the direction of the cutter rotation. If this is not done, the cutter may climb the work, leading to potential injury for the operator.

Explanation
When clearing chips from the work, it is important to use a suitable tool that can effectively remove the debris. A brush is commonly used for this purpose as it can easily sweep away the chips without causing any damage to the workpiece. Using paper, pen, or file may not be as effective in clearing the chips and may even cause scratches or other unwanted marks on the work surface. Therefore, a brush is the most appropriate tool for this task.

Explanation
Revolving cutters are tools or machines that have rotating parts, such as saw blades or milling cutters. Reaching over a revolving cutter is dangerous because there is a high risk of getting caught or injured by the rotating parts. It is important to maintain a safe distance from revolving cutters to prevent accidents or injuries.

Explanation
The correct answer is "cover" because using a cover can prevent chips from flying. A cover acts as a protective barrier, preventing debris or fragments from scattering and causing potential harm. By placing a cover over the chip, it ensures that any flying chips are contained and do not pose a risk to individuals or surrounding objects.

Explanation
The correct answer is "rotating". This means that the RPM (revolutions per minute) of the cutter should only be adjusted when it is in motion. However, if you need to change gears (switch from low to high or high to low gears), this should only be done when the cutter is not rotating. This ensures safety and prevents any potential damage to the equipment.