Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich risk increases when aiming a phased-array radar at low grazing angles?
A)Specular multipath signal interference✓
B)Ionospheric signal dispersion effects
C)Atmospheric ducting signal capture
D)Rain fade signal depolarization
💡 Explanation
Specular multipath interference significantly increases because low grazing incidence causes strong reflections from smooth surfaces; the multiple signals interfere. Therefore, range and angle accuracy decreases, rather than effects due to ionosphere, ducting, or rain.
🏆 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 cooling airflow within an aero-engine's turbine blades is significantly reduced during high-power operations?
- Which risk increases in hydraulic systems that use accumulators when system pressure exceeds the accumulator's design limit?
- Which risk increases when post-tensioned concrete slab tendons experience grout voids after stressing?
- Which outcome occurs when lateral wind loads exceed column's buckling resistance?
- Within a three-phase power transformer, which consequence results when an inductive load causes a leading power factor correction circuit to switch inappropriately?
- Which outcome occurs when impedance mismatches within long underground power cable circuits?
