Commercial Stage 2 Exam-Jeppesen Questions And Answers.

You climb to 17,000 feet in a turbocharged airplane and maintain the same true airspeed as you had been maintaining near sea level. What would you expect to observe about pitch attitude under these conditions? A-to maintain altitude, you need to maintain a more nose-high attitude because of the reduced air density compared to sea level B-to avoid climbing, you need to maintain a more nose-low attitude because of the reduced drag compared to sea level C-to maintain altitude, you need to maintain the same pitch attitude as you did at sea level - Answer-Ato maintain altitude, you need to maintain a more nose-Hugh attitude because of the reduced air density compared to sea level Knowing the limit load factor of your aircraft will help you prevent ___________. A-stalls B-possible structural damage C-spins - Answer-B-possible structural damage Stalling speed will be __________. A-lower with an increased load factor B-higher with a decreased load factor C-higher with an increased load factor - Answer-C-higher with an increased load factor The area to the right of VNE on the V-g diagram represent the ___________. A-caution range B-region of structural damage C-normal operating range - Answer-B-region of structural damageHow do airfoils create lift? A-airfoils cause air to love faster over the bottom surface, which creates increased air pressure below the wing B-airfoils create an upwash behind and below the airfoil that forces the airfoil upward C-airfoils cause comparatively greater air pressure on the bottom surface of the wing than on the upper surface - Answer-C-airfoils cause comparatively greater air pressure on the bottom surface of the wing than on the upper surface How do slats, a leading edge device, operate? A-slats move forward and down to create a path for air that performs a washout function. Depending on the aircraft, they might deploy automatically by aerodynamic pressures or be extended electrically or hydraulically B-slats perform a washout function without the need for mechanical devices or moving parts C-slats are the most complex of the leading edge devices, increasing both wing area and camber. They are used only on jets, whose high-speed airfoils need these devices to create adequate lift at relatively low takeoff and landing speeds. - Answer-A-slats move forward and down to create a path for air that performs a washout function. Depending on the aircraft, they might deploy automatically by aerodynamic pressures or be extended electrically or hydraulically How do spoilers and speed brakes operate? A-they open from the lower surfaces of wings to spoil the high pressure area under the wing, which reduces lift and increases drag B-they open from the upper surfaces of wings to spoil the smooth airflow, which reduces lift and increases drag C-they open from the leading edges of wings to spoil the airflow behind the device, which reduces lift and increases drag - Answer-B-they open from the upper surfaces of wings to spoil the smooth airflow, which reduces lift and increases drag How does Newton's third law of motion apply to lift?A-Newton's third law of motion applies to lift, mass, and acceleration B-as air flows faster over the top of the airfoil, pressure decrease; and as air flows down under the bottom of the airfoil, pressure increases C-as the airfoil forces air downward, it is pushed upward in response - Answer-C-as the airfoil forces air downward, it is pushed upward in response How does the Bernoulli principle apply to lift? A-as air flows faster over the top of the airfoil, pressure decreases, and as air slows down under the bottom of the airfoil, pressure increase B-airfoils force air downward, resulting in an upward reaction force C-Bernoulli's principle applies to the air flowing slower over the top of the airfoil - Answer-A-as air flows faster over the top of the airfoil, pressure decreases, and as air slows down under the bottom of the airfoil, pressure increase What angle of attack yields the greatest coefficient of lift? A-CLmax B-CLmin C-L/Dmax - Answer-A-CLmax