Final technical authority of a project lies with A. Assistant Engineer B. Executive Engineer C. Superintending Engineer D. Chief Engineer

The correct answer is: D. Chief Engineer.

The Chief Engineer is the highest-ranking engineer in a project. They have the final say on all technical decisions, and are responsible for the overall success of the project.

The Assistant Engineer is a junior engineer who is responsible for carrying out the instructions of the Executive Engineer.

The Executive Engineer is a senior engineer who is responsible for the day-to-day management of a project.

The Superintending Engineer is a senior engineer who is responsible for the overall coordination of a project.

In conclusion, the Chief Engineer has the final technical authority of a project.