What is the total number of compressor stages when adding both low and high pressure compressors?

• A. 14
• B. 12
• C. 16
• D. 18

Answer: (A)

The key idea is that the total number of compressor stages is just the sum of the stages in the low-pressure section and the high-pressure section. Each stage adds another step in compression, so to get the overall count you simply add how many stages each section has.

In this problem, the overall configuration yields fourteen stages across both compressors. That means the two sections together contribute fourteen stages—for example, six in the low-pressure part and eight in the high-pressure part, or seven and seven; any split that adds to fourteen matches the setup. The other total options would require a different distribution of stages than the one described, so they don’t fit this scenario.