Correct Answer : Smooth lines which controls overall shape of the conic cross-section
Explanation : Longitudinal control lines are smooth lines through which conic curves are connected. Since, it connects all different conics, it will control the overall shape of the body itself during lofting.
Correct Answer : Option (A) : 3.42 per m
Explaination : Given, Stop=10m2, Aside=14m2, L = 10m.Now ratio of wetted area Aw and volume V is given by,Aw/V = 2*L*(Stop + Aside) / (Stop*Aside)Aw/V = 2*10*(10+14) / (10*14) = 20*24/140 = 3.42 per m.
Correct Answer : Option (A) : 4m²
Explaination : Given, planform area = 2m².Since, wing is paper thin wetted are = 2*planform area = 2*2 = 4m².
Correct Answer : Option (B) : 16.16m²
Explaination : Given, Aw = 64.64m².Now, average projected area A = Aw/4 = 64.64/4 = 16.16m².
