VERIFIED ANSWERS WITH IMAGES
Which one of the following does NOT affect density altitude?
(A) Altitude
(B) Atmospheric pressure
(C) Moisture content of air
(D) Temperature (E) Wind velocity helium
From a physics perspective, an aircraft's total weight force is
deemed to act through the______: (A) Weight and balance
reference datum
(B) Center of pressure
(C) Center of gravity
(D) Center of momentum
(C) Induced drag
An air vortex at the wingtip creates:
(A) Form drag
(B) Profile drag
(C) Induced drag
(D) Parasite drag
(B) An object's mass times its velocity
Momentum is:
(A) An object's mass times its velocity squared
(B) An object's mass times its velocity
(C) An object's weight plus one-half of its velocity squared
(D) An object's forward velocity times its coefficient of lift
(A) Forward
,The exhaust from jet engines is directed backward, the resulting
reactive force on the airplane is ________:
(A) Forward
(B) Forward but deflected downward due to the angle of incidence
(C) Forward but reduced because of the inclined component
of the total drag vector
(D) Determined only by using the conservation of energy
equation.
(B) The pilot applying flight and power control inputs to prevent
slipping or skidding during any aircraft maneuver
Coordinated flight is defined as:
(A) The pilot applying control inputs that are suitable for the
aircraft's density altitude
(B) The pilot applying flight and power control inputs to prevent
slipping or skidding during any aircraft maneuver
(C) The pilot reducing back pressure on the control column or
joystick while turning in the opposite direction of the horizontal
component of total drag. (D) All of the above
(C) Downward
Anhedral angle is the ______ angle of an airplane's wings and
tailplane from the horizontal:
(A) Upward
(B) Obtuse
(C) Downward
(D) Isosceles
(C) The point the total drag curve where the lift-to-drag ratio is
greatest
Minimum drag speed corresponds to:
(A) The point on the total drag curve where the thrust-to-drag
ratio is least
, (B) The point on the total drag curve where the drag-to-mass
ratio is least
(C) The point the total drag curve where the lift-to-drag ratio is
greatest
(D) The point on the total drag curve where the lift-to-weight ratio
is least
(B) There is a rapid decrease in lift caused by an excessive angle
of attack and airflow separating from an airfoil's upper surface
An airfoil stalls when:
(A) The downward component of the wingtip vortices are greater
than the lift produced by increasing the angle of attack.
(B) There is a rapid decrease in lift caused by an excessive
angle of attack and airflow separating from an airfoil's upper
surface. (C) The pilot has mistakenly extended that flaps while
flying
above the maneuvering airspeed (VsubA) (D)
The pilot deploys the air brakes.
(D) controllable
A propeller with a bade angle that can be changed by the pilot is
called a _____ propeller:
(A) dynamic
(B) rotational
(C) reverse thrust
(D) controllable
(D) Gyroscopic precession
The attribute of rotating bodies to manifest movement ninety
degrees in the direction of rotation from the point where a force is
applied to the spinning body is called:
(A) Rotational precession
(B) Dynamic precession