Which of the following is an advantage of a gas turbine?

A primary advantage of gas turbines is their ability to start up quickly and operate efficiently, which makes them particularly valuable in applications where rapid power generation is needed. The rapid starting characteristic is essential for managing peak power demands or emergency situations, where power must be brought online without extensive delays.

In addition to rapid starting, the design of gas turbines is relatively simple compared to other power generation systems, such as steam turbines. This simplicity can lead to lower maintenance requirements and a more straightforward operational structure, providing an advantage in both reliability and operational costs.

Cost is another factor, but it's important to note that while gas turbines can produce energy at competitive costs, the overall cost-effectiveness depends on various factors such as fuel prices, operational efficiency, and installation variables.

The phrase "All of the above except maximum outage time" suggests that while the other benefits contribute to the operational positivity of gas turbines, maximum outage time is not typically considered an advantage, as high availability is often touted instead. Therefore, the combination of simple design, low operational costs in many contexts, and rapid starting capabilities highlights the strengths of gas turbines in power generation, making it the most comprehensive choice.