Which of the following is NOT listed as a major engineering function?

Which of the following is NOT listed as a major engineering function?

• A. Research
• B. Sales
• C. Design
• D. Maintenance

Answer: (D)

In engineering, the major functions focus on creating and refining products and systems—exploring possibilities through research and turning ideas into workable solutions through design. Maintenance, while essential for keeping equipment running, is primarily an operations or support activity rather than a development task. It deals with keeping existing systems in good working order rather than contributing to the creation or improvement of new designs. In this question’s framing, the list highlights the development side of engineering, so maintenance isn’t included as a major engineering function. That’s why maintenance is the best choice as the one not listed.

In engineering, the major functions focus on creating and refining products and systems—exploring possibilities through research and turning ideas into workable solutions through design. Maintenance, while essential for keeping equipment running, is primarily an operations or support activity rather than a development task. It deals with keeping existing systems in good working order rather than contributing to the creation or improvement of new designs. In this question’s framing, the list highlights the development side of engineering, so maintenance isn’t included as a major engineering function. That’s why maintenance is the best choice as the one not listed.