Loading & PerformanceCâu 84 / 100
Your quadcopter normally flies about 24 minutes on a full battery at 70 °F. You are launching on a 25 °F morning, and the manufacturer warns that cold can reduce usable battery capacity by roughly 25%. About how much flight time should you plan for?
a.About 6 minutes
b.About 18 minutes
c.About 21 minutes
d.About 24 minutes
Giải thích
A 25% reduction leaves 75% of the normal endurance: 24 x 0.75 = 18 minutes. The 6-minute answer is the amount lost rather than the amount remaining, and 21 minutes reflects only a 12.5% loss. Planning for the full 24 minutes ignores the cold entirely and invites a low-voltage failsafe far from the landing site.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
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Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với FAA Part 107 Remote Pilot Certificate Knowledge Test · Quy trình kiểm tra