🔍 Key Concepts

• Gas turbine thermodynamic cycles (how the working fluid flows) • Difference between open and closed cycles • Effect of recirculating exhaust back to the compressor inlet

💭 Think About

• Ask yourself: If exhaust is cooled and sent back to the compressor, does fresh outside air enter every time, or is the same working fluid reused? • Which cycle name is typically used in thermodynamics when the working fluid is kept within the system and not discharged to the atmosphere? • Which options sound like formal thermodynamic terms you’ve actually heard used for real gas turbine cycles?

✅ Before You Answer

• Verify whether an open cycle turbine discharges exhaust to atmosphere or recirculates it. • Check which term is associated with a recuperative / recirculating system where the working fluid stays in the loop. • Eliminate any options that don’t correspond to standard thermodynamic cycle terminology used in marine gas turbines.