Which of the following is a primary duty of the Chief Engineer (CHENG)?

The primary duty of the Chief Engineer (CHENG) on a Navy ship primarily revolves around the operation and maintenance of the ship's engineering systems, which includes the provision of hotel services. This encompasses managing utilities such as power generation, heating, ventilation, and air conditioning, as well as ensuring that water supply and waste management systems operate effectively. The provision of hotel services is critical to maintaining livable conditions for the crew, which is a core responsibility for the engineering department.

In contrast, tasks like overseeing weapon systems, conducting navigational operations, or managing shore-based logistics fall under the purviews of other officers or departments on the ship. The weapon systems are managed by the weapons department, navigational operations are under the operations officer or navigator’s jurisdiction, and shore-based logistics are typically handled by supply officers or logistics specialists. Each of these roles has distinct responsibilities that do not directly tie back to the engineering functions overseen by the CHENG.