Question

What is the function of the compressor in an aircraft?

(a) To supply sufficient amount of air for combustion

(b) Increase velocity

(c) Decrease pressure

(d) To cut off the air flow inside the aircraft

I had been asked this question in semester exam.

Question is from Thrust Producing Power Plant in section Aircraft Force Systems and the Equations of Motion of Aircraft Performance

Answer 1

Correct option is (a) To supply sufficient amount of air for combustion

Best explanation: The function of the compressor in an aircraft to supply sufficient amount of air for combustion. In a compressor the velocity may increase or decrease accordingly but the pressure increases.