The two main types of "compressor" stalls are known as _________.

Correct Answer: Option A — steady state and transient

Steady-state stalls occur during constant speed operation due to inlet distortion or compressor fouling, while transient stalls arise during rapid power changes or acceleration. Understanding these classifications is critical for troubleshooting compressor surge, as transient events are often related to fuel control scheduling or bleed air valve malfunctions.