Disc Sander Safety Test

1. Should work be applied to the sander before it reaches full speed?

Yes

No

It is not necessary to apply work to the sander before it reaches full speed. Sander machines are designed to operate efficiently and effectively once they have reached their full speed. Applying work before the sander reaches full speed may cause inefficient sanding or damage to the material being worked on. It is best to wait for the sander to reach its full speed before using it.

Explanation

It is not necessary to apply work to the sander before it reaches full speed. Sander machines are designed to operate efficiently and effectively once they have reached their full speed. Applying work before the sander reaches full speed may cause inefficient sanding or damage to the material being worked on. It is best to wait for the sander to reach its full speed before using it.

2. Which portion of the disc should be used for sanding?

Portion that rotates upwards from the table

Portion that rotates downwards toward the table

The portion of the disc that rotates downwards toward the table should be used for sanding. This is because when the disc rotates in this direction, it creates a downward force that helps to hold the workpiece securely against the table. Sanding in the opposite direction could cause the workpiece to be lifted off the table, resulting in an unstable and potentially dangerous situation.

Explanation

The portion of the disc that rotates downwards toward the table should be used for sanding. This is because when the disc rotates in this direction, it creates a downward force that helps to hold the workpiece securely against the table. Sanding in the opposite direction could cause the workpiece to be lifted off the table, resulting in an unstable and potentially dangerous situation.

3. How should timber be applied to the sander?

Hard and fast

Gently and smoothly

Slowly and continuously

Timber should be applied to the sander gently and smoothly to ensure a proper and even sanding process. Applying too much pressure or moving the timber too quickly can result in uneven sanding, damage to the timber, or even injury to the person operating the sander. It is important to maintain a steady and controlled movement while applying the timber to the sander to achieve the desired smooth finish.

Explanation

Timber should be applied to the sander gently and smoothly to ensure a proper and even sanding process. Applying too much pressure or moving the timber too quickly can result in uneven sanding, damage to the timber, or even injury to the person operating the sander. It is important to maintain a steady and controlled movement while applying the timber to the sander to achieve the desired smooth finish.

4. When you have finished sanding or if you are distracted, what must be done immediately?

Show the teacher your work

Talk to your friend

Remove your protective equipment

Turn off the sander

When you have finished sanding or if you are distracted, it is important to immediately turn off the sander. This is necessary for safety reasons as leaving the sander on can lead to accidents or injury. It is crucial to always prioritize safety and ensure that the equipment is properly turned off when not in use or when you are not actively engaged in the task.

Explanation

When you have finished sanding or if you are distracted, it is important to immediately turn off the sander. This is necessary for safety reasons as leaving the sander on can lead to accidents or injury. It is crucial to always prioritize safety and ensure that the equipment is properly turned off when not in use or when you are not actively engaged in the task.

5. When operating a disc sander, which of the following actions is considered most unsafe?

Wearing safety goggles

Applying excessive pressure on the workpiece

Keeping hands at least 2 inches away from the disc

Using the sander with a secured workpiece

Applying excessive pressure on the workpiece can cause it to kick back or become unstable, leading to a loss of control and potential injury. The disc sander is designed to work efficiently with light, consistent pressure. For safety, it's crucial to let the sander do the work, maintain control, and avoid forcing the workpiece into the disc. Proper technique reduces risks and ensures smoother operation.

Explanation

Applying excessive pressure on the workpiece can cause it to kick back or become unstable, leading to a loss of control and potential injury. The disc sander is designed to work efficiently with light, consistent pressure. For safety, it's crucial to let the sander do the work, maintain control, and avoid forcing the workpiece into the disc. Proper technique reduces risks and ensures smoother operation.

6. Why shouldn't small pieces of timber be sanded?

The timber might get jammed in the sander

You might sand your fingers as well

You might burn your fingers

The timber might get flung away by the sander

Small pieces of timber should not be sanded because they might get jammed in the sander, which can cause damage to the machine and potentially lead to injuries. Additionally, sanding small pieces of timber can put your fingers at risk of being sanded or burned. The force of the sander can also cause the timber to be flung away, posing a safety hazard.

Explanation

Small pieces of timber should not be sanded because they might get jammed in the sander, which can cause damage to the machine and potentially lead to injuries. Additionally, sanding small pieces of timber can put your fingers at risk of being sanded or burned. The force of the sander can also cause the timber to be flung away, posing a safety hazard.

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