The correct answer is: A. short lengths from wood work
Rework is the process of fixing or modifying a product or service that has been found to be defective or unsatisfactory. It can be a costly and time-consuming process, but it is often necessary to ensure that products meet quality standards and that customers are satisfied.
In the case of short lengths from wood work, the wood may be cut to the wrong length, or it may have defects such as knots or cracks. In either case, the wood will need to be reworked before it can be used. This may involve cutting the wood to the correct length, removing defects, or both.
Rework can be a difficult and time-consuming process, but it is often necessary to ensure that products meet quality standards and that customers are satisfied. By taking steps to prevent rework, such as improving quality control procedures, businesses can save time and money.
Option B, defective aluminium cans recycled by manufacturer, is not an example of rework. Recycling is the process of converting waste materials into new materials and objects. In the case of aluminium cans, they are recycled by melting them down and then using the molten aluminium to create new cans. This is not considered to be rework because the cans are not being fixed or modified.
Option C, detection of defective pieces before shipment, is also not an example of rework. Detection is the process of finding and identifying defects. In the case of defective pieces, they are typically detected before they are shipped to customers. This is done through quality control procedures such as inspection and testing. Once defects have been detected, they can be either reworked or scrapped.
Option D, none of above, is also not the correct answer. Option A is the only option that is an example of rework.