Which risk increases when a turbofan engine's variable stator vanes remain fixed during flight?

💡 Explanation

Compressor stall and surging risk increases because fixed vanes disrupt airflow's angle of attack, exceeding the stall limit of the compressor blades; therefore, stall occurs disrupting pressure, rather than optimal flow control with correctly angled vanes.

• Which outcome occurs in a three-phase electrical transmission circuit experiencing a single line-to-ground fault?
• Within induction heating systems, which outcome occurs when over-currents persist after a transient surge?
• Which outcome occurs when a MOSFET array operates continuously beyond its safe operating area?
• Which outcome occurs when a micro-robot's inertial measurement unit (IMU) experiences accumulated gyroscope drift?
• Which outcome occurs when rapid current variations exceed switchgear breaker's ratings?
• Which outcome arises when a hydrofoil's cavitation number drops below the critical threshold?