Final answer:
Both Technician A and Technician B are correct. Engines produce less power at higher altitudes due to lower air density, but modern engine control systems can adjust the mixture to compensate, up to a certain limit.
Step-by-step explanation:
In response to the student's inquiry:
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?
Technician A is correct because as altitude increases, the density of air decreases. This means there is less oxygen available for combustion in an engine, which leads to a reduction in engine power.
Technician B is also correct; modern engine management systems can adjust the air-fuel ratio to compensate for the reduction in air density at higher altitudes, which helps maintain engine performance. However, compensation is not always perfect and does not fully recover the loss in power.
In this case, Technician B is correct. Engines can compensate for changes in altitude by adjusting the air-fuel mixture to maintain optimal power output.
This is achieved through the engine control system, which utilizes sensors to measure factors such as air density and adjusts the fuel injection accordingly. As a result, the engine continues to produce the desired power even at high altitudes.
The correct answer is c. Both technicians A and B.