Which of the following is an advantage of a single-shaft gas turbine engine compared to a split-shaft gas turbine engine?

Correct Answer: Option C — Fewer moving parts

Single-shaft gas turbines integrate the compressor and turbine on a common rotor assembly. This design eliminates the need for a separate power turbine section and complex inter-shaft coupling, resulting in fewer moving parts, reduced mechanical complexity, and lower maintenance requirements compared to split-shaft or free-turbine configurations.