Question

5. Technician A says that in going to high altitudes, engines produce lower power. Technician B says that most engine control systems can compensate the air-fuel mixture for changes in altitude. Which technician is correct?

Answer 1

Technician A's statement about engines producing lower power at high altitudes is correct due to reduced oxygen availability for combustion. Technician B is also correct as modern engine control systems can compensate for changes in altitude by adjusting the air-fuel mixture, helping maintain engine performance.

Step-by-step explanation:

Both Technician A and Technician B provide correct statements regarding the effects of altitude on engine performance and the engine control system's ability to compensate for these changes. As altitude increases, the air density decreases, leading to lower oxygen levels. Technician A is correct in saying that engines produce lower power at high altitudes due to the thinner air, which results in less oxygen available for combustion.

However, Technician B is also correct in stating that modern engine control systems can adjust the air-fuel mixture for changes in altitude, ensuring that the engine can still operate effectively despite the reduction in air density. This compensation helps to maintain engine performance to the best extent possible given the altitude conditions.