Final answer:
True, a chisel that is bent, cracked, chipped, or mushroomed should be discarded to prevent accidents and maintain safety. Damaged tools can cause injury and should be removed from use immediately.
Step-by-step explanation:
A chisel that is bent, cracked, chipped, or mushroomed should indeed be discarded. Such conditions can make the chisel unsafe to use, as it may break unexpectedly or pieces could fly off and cause injury. Proper tool maintenance is essential for safe operations, whether in a professional setting or in personal use. If a chisel—or any tool—shows signs of wear or damage mentioned, it should be removed from use immediately. It is always better to replace a damaged tool than to risk an accident.For example, a mushroomed chisel head can create shrapnel when struck, which can injure the user or bystanders. Similarly, a bent or cracked chisel may not possess the structural integrity necessary to withstand use and could lead to a dangerous situation. In contrast to this scenario, a phrase like 'Should I take that plastic bottle out of the fridge?' doesn't relate to tool safety, nor does 'Mr. Gonzalez quickly reprimanded the student for using his cell phone in class'. Those examples reflect different contexts, whereas 'The balcony collapsed because of a poorly manufactured steel I-beam' does emphasize the importance of material integrity, akin to tool safety.