Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich outcome arises when a hydrofoil's cavitation number drops below the critical threshold?
A)Decreased lift and increased drag✓
B)Increased lift and decreased drag
C)Improved fuel efficiency
D)Stable hydrodynamic performance
💡 Explanation
When the cavitation number drops below the critical threshold, extensive cavitation occurs because pressure near the foil's surface falls sufficiently to vaporize the liquid, disrupting the flow and causing loss of lift & increased drag. Therefore, decreased lift & increased drag results, rather than increased lift, efficiency or stability which require attached flow.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which outcome occurs when ultrasonic sensors on autonomous underwater vehicles experience signal scattering?
- Which outcome occurs when a three-phase transformer bank experiences a single-phase voltage loss on its primary winding?
- What condition increases the risk of overheating the compressor's motor windings in a heat pump system?
- Which mechanism limits reverse current flow in Zener diodes?
- Which risk increases when concrete's rebar bonding fails?
- Which outcome occurs when dielectric breakdown happens inside a high-voltage power transformer?
