Final answer:
Clamps are used to prevent injury to tubes by securely holding them in place. Mechanics use a length of pipe to provide extra leverage when removing tight bolts, but this method can be hazardous.
Step-by-step explanation:
In order to prevent injury to the tubes, clamps are used to manipulate them. Clamps are devices used to hold objects securely in place. By using clamps, tubes can be safely handled without the risk of them slipping or falling.
In mechanics, there is a similar concept where a length of pipe is used to provide extra leverage when removing a tight bolt. When a wrench is extended with a pipe, it increases the torque applied to the bolt, making it easier to loosen. However, this method can be hazardous as it may break the bolt due to excess force.
Whether in the context of medical procedures or mechanical tasks, clamps and the use of a pipe over a wrench handle are both examples of employing additional tools and techniques to ensure safety and efficiency in manipulating various objects.