1The troposphere is a layer of the atmosphere where the temperature
- Generally decreases with height
- Generally increases with height
- Remains constant
2Pressure changes with change in volume (at constant temperature) so that it doubles when the volume
- Doubles
- Halves
- Quadruples (x4)
4Density of the atmosphere will
- Increase with rising humidity
- Decrease with rising humidity
- Be unaffected by any change in humidity
5The standard sea level pressure in the ISA is normally measured in millibars. Its metric equivalent in kilo-Pascal's is
6Mach number is the ratio of the aircraft's
- True air speed to the speed of sound at sea level
- True air speed to the speed of sound at the same atmospheric conditions
- Indicated air speed to the speed of sound at the same atmospheric conditions
7The angle of attack of an aero foil is the angle that the chord line makes with the
- Longitudinal axis
- Direction of motion
- Horizontal when the aircraft is in a rigging position
8If the airspeed over a wing at a constant angle of attack is doubled, the lift will be
- Doubled
- Quadrupled (x4)
- Increased by a power of eight
9Aspect ratio is the ratio of aero foil
- Mean chord to span
- Span to mean chord
- Thickness to mean chord
10The optimum angle of an aero foil is that angle at which the
- Aero foil produces maximum lift
- Aero foil experiences minimum drag
- Best lift/drag ratio is produced
11If the throttle is opened and the airspeed is held constant, the angle of attack is
- Increased
- Decreased
- Unchanged
12The transition point on a wing is the point where the
- Flow separates from the wing surface
- Boundary layer flow changes from laminar to turbulent
- Flow divides to pass above and below the wing
13If an aircraft is flying at constant speed then thrust is
- Greater than drag
- Equal to drag
- Less than drag
14The weight of an aircraft is considered to act at the center of
15During a turn the lift force is resolved into two forces which are centripetal and a force equal and opposite to
16A high L/D ratio
- Gives a steep glide angle
- Has no effect on the glide angle
- Gives a shallow glide angle
17In a climb, the lift force is
- Less than the weight
- Equal to the weight
- Greater than the weight
18During a glide the forces acting on an aircraft are
- Lift, weight and thrust
- Lift, drag and weight
- Drag, thrust and weight
19Stability about the lateral axis is given by the
- Wing dihedral
- Horizontal stabilizer
- Ailerons
20Anhedral of a wing will
- Aero foil produces maximum lift
- Reduce longitudinal stability
- Reduce lateral stability
21Pitch up in an aircraft is caused by
- Longitudinal instability
- Lateral instability
- Air compressibility
22Dutch roll is
- A combination of rolling and yawing motions
- A type of very slow rolling motion
- Primarily a pitching instability
23Increasing the size of the vertical stabilizer will
- Increase lateral stability
- Decrease lateral stability
- Have no effect on lateral stability
24Moving the C of G aft will
- Reduce longitudinal stability
- Increase longitudinal stability
- Decrease lateral stability
25Washout on a wing is when the incidence
- Decreases from root to tip
- Decreases from tip to root
- Increases from root to tip