Which of the following is NOT a major field of engineering?

• A. Civil
• B. Mechanical
• C. Electrical
• D. Chemistry

Answer: (D)

The main idea is distinguishing between fields that are taught as engineering disciplines and a science that underpins engineering. Civil, Mechanical, and Electrical are classic engineering fields, each focused on designing, analyzing, and building real-world systems. Chemistry, while essential to many engineering processes and enabling fields like Chemical Engineering, is a pure science rather than an engineering discipline. There is a separate engineering path called Chemical Engineering for those focusing on applying chemistry to design and operate processes, but Chemistry itself is not an engineering major. So Chemistry is the choice that isn’t a major field of engineering.