Final answer:
An electrical burn often results from the improper or faulty use of equipment, and it can affect the skin and deeper tissues depending on the severity.
Step-by-step explanation:
The type of burn that is usually the result of faulty or improper use of equipment is an electrical burn. Electrical burns can occur when equipment is not used correctly or is faulty, leading to an electric shock. In terms of severity, burns are categorized by degrees, from first-degree, which is a superficial burn affecting only the epidermis, to fourth-degree burns that involve damage to deeper tissues such as muscle and bone. A third-degree burn fully extends into the epidermis and dermis, destroying the tissue and affecting nerve endings and sensory function.