Sift Aviation questions with complete solution 2023 passed

Sift Aviation what is the preferred method of ground movement for helicopter on airports - correct answer air taxi what type of helicopter design uses a ducted fan in place of a tail rotor to cancel torque effect - correct answer the NOTAR how would high density altitude affect the performance of a helicopter - correct answer Performance would decrease due to low value of the air density which pitot static instrument makes use of both pitot and static preasure - correct answer airspeed indicator what effect does the celiac control have on the rotor system - correct answer It alters the pitch of the main rotor blades individually and cynically AOA is - correct answer ANGLE OF ATTACK and the airfoil chord line and the resultant relative wins what is the primary principle to counteract the main rotor torque with NOTAR - correct answer coanda effect what type of drag is caused by lift - correct answer induced drag what are the four elements of risk management - correct answer pilot,aircarft,enviorment,external pressures what three conditions are necessary for a helicopter to be in danger of a dynamic rollover - correct answer pivot point, rolling motion, and exceeding critical angle what are the three regions of a rotor in autorotaton - correct answer driven, driving, and stall