Which outcome occurs as thrust increases in a fixed-wing jet aircraft operating near its critical Mach number?

💡 Explanation

Wave drag increases significantly because increasing thrust accelerates airflow, causing larger areas of supersonic flow and stronger shockwaves—a process called wave drag divergence. Therefore, wave drag increases dramatically, rather than turbulent flow decreasing or efficiency trivially changes under these extreme conditions.

• Which outcome reduces heat transfer efficiency in a shell and tube heat exchanger when mineral deposits accumulate?
• Which risk increases when a three-phase motor control circuit experiences a single-phase condition?
• Which consequence results when rotary encoder pulses are lost in a CNC milling machine?
• Which outcome occurs when antenna **aperture blockage** distorts the signal?
• Which constraint limits maximum power transfer in three-phase distribution transformers during peak demand?
• Which risk increases when welding high-strength steel without preheating electrodes?