السؤال 47Which visual distress signal is acceptable for daylight use only?Hand-held red flareRed aerial pyrotechnic flareSelf-contained rocket-propelled parachute red flareHand-held orange smoke distress flare✓الإجابة الصحيحةالشرحThe official Q170 sample marks D — “Hand-held orange smoke distress flare” — as correct.