Regarding the statements about engine pressure ratio (1) and (2), which is true?

Regarding the statements about engine pressure ratio (1) and (2), which is true?

• A. Only 2 is true
• B. Both 1 and 2 are true
• C. Neither 1 nor 2 is true
• D. Only 1 is true

Answer: (D)

I need the exact wording of statements about engine pressure ratio to explain why only one is true. Please paste the two statements. Meanwhile, here’s the relevant concept: engine pressure ratio (EPR) is the ratio of a pressure in the engine’s core after compression (and through the high‑pressure section) to the pressure at the engine inlet reference point. It’s used as a throttle indicator and generally increases as you command more power, but it isn’t a direct measure of thrust. EPR is influenced by factors like ambient (inlet) pressure, engine speed, bleed air usage, and compressor/overall efficiency. With that in mind, the true statement will be the one that correctly describes how EPR behaves under those conditions, while the false statement will misstate its dependence or its meaning. Please provide the exact two statements to proceed.

I need the exact wording of statements about engine pressure ratio to explain why only one is true. Please paste the two statements.

Meanwhile, here’s the relevant concept: engine pressure ratio (EPR) is the ratio of a pressure in the engine’s core after compression (and through the high‑pressure section) to the pressure at the engine inlet reference point. It’s used as a throttle indicator and generally increases as you command more power, but it isn’t a direct measure of thrust. EPR is influenced by factors like ambient (inlet) pressure, engine speed, bleed air usage, and compressor/overall efficiency. With that in mind, the true statement will be the one that correctly describes how EPR behaves under those conditions, while the false statement will misstate its dependence or its meaning. Please provide the exact two statements to proceed.