Classification Training - Principles of Flight Revision

Newton's 3rd Law States:
1. Every object has weight
2. Every action has an equal and opposite reaction
3. Every force causes an object to move
4. Weight equals lift during flight
On a general purpose aerofoil, the greatest amount of lift occurs:
1. Where the top surface is curved most
2. Where the top surface is not curved
3. At the centre of the bottom surface
4. Just forward of the trailing edge
The centre of pressure on an aerofoil is?
1. The point at which all the lift is said to act
2. Two thirds of the way along the chord line, measured from the leading edge
3. The point at which all the weight is said to act
4. Halfway along the chord line
If air density in an airflow is reduced, and all other factors are unchanged, what happens to the lift generated by a wing in the airflow?
1. It is increased
2. It is unchanged
3. It is reduced
4. It becomes unpredictable
Which of the following is true?
1. The stall is the same for all aircraft
2. The airspeed at which an aircraft stalls does vary
3. A wing can stall at any angle of attack
4. The airspeed at which an aircraft staff does not vary.
A streamline shape with an airspeed of 100kts has a drag force of 200N. If the airspeed is increased to 300kts, what will the drag be?
1. 3600N
2. 800N
3. 1800N
4. 400N
Which axis runs from the nose to the tail in an aircraft?
1. Normal
2. Bilateral
3. Lateral
4. Longitudinal
The movement of an aircraft about its longitudinal axis is called?
1. Rolling
2. Pitching
3. Yawing
4. Damping
Does this aircraft have Anhedral or Dihedral wings?
1. Anhedral
2. Dihedral
What is the motion shown in the diagram?
1. Diving
2. Yawing
3. Pitching
4. Rolling
Which of these flap settings would a pilot most probably select for a shorter take-off?
1. 15 Degrees
2. 120 Degrees
3. 90 Degrees
4. 60 Degrees
A glider with a gliding angle of 1 in 40 is in still air and flying over level ground. What distance will the aircraft travel from a height of 1640feet (0.5 kilometre) before reaching the ground?
1. 80 kms
2. 40 kms
3. 10 kms
4. 20 kms
A viking glider with a gliding angle of 1 in 35 is in still air and flying over level ground. What distance will the aircraft travel from a height of 1640 feet (0.5 kilometre) before reaching the ground?
1. 35kms
2. 8.75kms
3. 17.5kms
4. 70kms
The pitch angle of all the main rota blades of a helicopter can be altered by the same amount at the same time. This is called:
1. Cyclic Pitch
2. Collective Pitch
3. Torque Reaction
4. Pitching
When a helicopter rota is driven in a circular motion there is an oposing force. What is this force called?
1. Lift
2. Lift Reaction
3. Drag
4. Torque Reaction
For a particular aircraft, which of these will reduce the stalling speed?
1. A reduction in power
2. Raising the flaps
3. Putting the aircraft into a turn
4. A reduction in weight
On a general purpose wing, at which angle of attack is the greatest lift produced?
1. About 15 Degrees
2. About 10 Degrees
3. About 5 Degrees
4. About 20 Degrees
On an aircraft, if the airspeed over a wing is trebled, and all other factors affecting lift are unchanged, the lift is:
1. Multiplied by about 9
2. Unchanged
3. Divided by about 3
4. Multiplied by about 3
All the axes of rotation of an aircraft pass through:
1. It's centre of gravity
2. A point halfway along a line between the wing tips
3. A point halfway between the tail and the nose
4. Its centre of pressure
When would a glider pilot use airbrakes?
1. When wanting to turn
2. When being winch-launched
3. When wanting to climb
4. When approaching to land
In what direction, relative to the direction of the oncoming air, or pathe of the aircraft, do the lift forces act?
1. The opposite direction
2. at 90 degrees
3. The same direction
4. At about 4 degrees.
When a glider pilot operates the airbrakes, with is the effect?
1. Lift is increased and drag is reduced
2. Lift is reduced and drag is reduced
3. Lift is increased and drag is increased
4. Lift is reduced and drag is increased
To fly, an aircraft must generate lift to oppose its:
1. Weight
2. Drag
3. Thrust
4. Inertia
In the diagram, air is flowing past a constriction. What happens to the air pressure at point B?
1. Its is greater than at point A
2. It is greater than at point C
3. It is the same as at point C
4. It is lower than at point C
In what direction does lift operate relative to the airflow?
1. Straight down
2. Perpendicular (at 90 degrees to it)
3. Parallel to it
4. Stright up
The centre of pressure on an aerofoil is:
1. The point at which all lift is said to act
2. Halfway along the chord line
3. Two thirds of the way along the chord line, measured from the leading edge
4. The point at which all the weight is said to act
Which of these wing sections is for a general purpose aerofoil:
1. X
2. Y
3. Z
4. W
Which of these wing sections is for a high speed aerofoil:
1. X
2. Y
3. Z
4. W
Which of these wing sections is for a high lift aerofoil:
1. X
2. Y
3. Z
4. W
At the stall speed of a particualr wing, which one of these factors is NOT variable?
1. The amount of weight supported by the wing
2. The angle of attack at which it stalls
3. The amount of lift being produced by the wing at the stall
4. The air speed at which it stalls
The angle of attack at which a wing stalls is known as:
1. Critical angle
2. Crucial angle
3. Stilled angle
4. Stopped angle
If you doubled the airspeed, the drag would increase by a factor of:
1. 4
2. 6
3. 2
4. 8
Which axis of ratation of an aircraft generally runs from wing tip to wing tip?
1. Lateral
2. Longitudinal
3. Diagonal
4. Normal
The aircraft in the diagram has what angle of wings?
1. Dihedral
2. Anhedral
What part of an aircraft is the arrow pointing to in this picture:
1. Rudder
2. Flaps
3. Aileron
4. Fin
On this diagram, what does the arrow point to?
1. Elevator trimming tab
2. Rudder trimming tab
3. Rudder
4. Elevator
In the diagram below, what part of the aircraft is the arrow pointing to?
1. Elevator
2. Rudder
3. Aileron
4. Fin
On the diagram below, what part of the aircraft is the arrow pointing to?
1. Rudder
2. Rudder trimming tab
3. Elevator trimming tab
4. Flaps
In the diagram below, what part of the aircraft is the arrow pointing to?
1. Rudder trimming tab
2. Rudder
3. Aileron
4. Fin
Which of these control surfaces is used to make an aircraft yaw?
1. Rudder
2. Aileron
3. Flap
4. Elevator
Which of these control surfaces is used to make an aircraft roll?
1. Rudder
2. Aileron
3. Flap
4. Elevator
Which of these control surfaces is used to make an aircraft pitch?
1. Rudder
2. Aileron
3. Flap
4. Elevator
To obtain maximum drag from an aircrafts flaps, they should be set to:
1. 40 degree
2. 10 degrees
3. 90 degrees
4. 30 degrees
A glider with a gliding angle of 1 in 20 is in still air and flying over level ground. What distance will the aircraft travel from a height of 1640 feet (0.5 kilometres) before reaching the ground?
1. 5kms
2. 20kms
3. 10kms
4. 8.75kms
Tilting the rotor disk of a helicopter forward will make the helicopter:
1. Travel forwards
2. Travel backwards
3. Hover
4. Climb
What is the main function of a helicopters cyclic control?
1. Control the engine speed
2. Controls horizontal movement
3. Controls vertical movement
4. Acts as a rudder
Which of these describes the use of slats at slow speed:
1. Help the pilot to move the control surfaces into the airflow
2. Smooth out turbulence in the airflow over the wing
3. Generate extra turbulence in the airflow over the wing
4. Make it more difficult for the pilot to move the control surfaces into the airflow.
If an aircraft in steady, straight and level flight suffered a sudden reduction in weight (for example by dropping bombs) and the pilot made no changes to the controls, the aircraft would begin to:
1. Climb
2. Descend
3. Slow down
4. Speed up
The movement of an aircraft about its normal axis is called:
1. Yawing
2. Rolling
3. Pitching
4. Climbing
The movement of an aircraft about its lateral axis is called:
1. Yawing
2. Rolling
3. Pitching
4. Climbing
The movement of an aircraft about its longitudinal axis is called:
1. Yawing
2. Rolling
3. Pitching
4. Climbing
As air passes over the top surface of a wing in normal flight, its speed will:
1. Increase
2. Reduce considerably
3. Reduce slightly
4. Remain constant
What is the force called that resists forward motion of an aircraft
1. Life
2. Weight
3. Thrust
4. Drag
What part of an aircraft produces stability in the pitching plane?
1. Fin
2. Rudder
3. Aileron
4. Tail plane
What part of an aircraft provides stability in the yawing plane?
1. Fin
2. Undercarriage
3. Elevator
4. Wings
On this cross section of a wing, which arrow is pointing to a flap?
1. U
2. R
3. S
4. T
On this cross section of a wing, which arrow is pointing to a slat?
1. U
2. R
3. S
4. T
On this cross section of a wing, which arrow is pointing to a slot?
1. U
2. R
3. S
4. T
What movement of the control column has been made to move the aircraft from point 1 through point 2 to point 3?
1. Pull the control colum towards the pilot
2. Push the control colum away from the pilot
3. Move the control colum to the left
4. Move the control colum to the right
In steady, straight and level flight, at constant speed, the amount of lift produced by the aircraft must be:
1. Equal to the amount of drag
2. Equal to the weight of the aircraft
3. Greater than the trust
4. Greater to the weight.
Where is the air pressure lowest in this diagram of an aerofoil in an aiflow?
1. L
2. O
3. V
4. E
A helicopter rotor disk is:
1. Controlled by the yaw pedals
2. The area swept by the rotor blades
3. Use to programme the path of the helicopter
4. Only used when hovering
What is the purpose of a helicopter's tail rotor?
1. Counter torque rotation
2. Provide thrust
3. Control the aircraft in the rolling plane
4. Reduce drag
Name the 3 forces acting on a glider in flight (Select THREE)
1. Lift
2. Weight
3. Thrust
4. Drag
The 4 forces acting on an aircraft in flight are:
1. Lift, Weight, Thrust, Drag
2. Liff, Weight, Power, Drag
3. Lift, Weight, Power, Air Resistance
4. Lift, Bouyancy, Thrust, Drag
What movement is shown in the image below:
1. Roll
2. Pitch
3. Yaw
4. Turn
What movement is shown in the image below:
1. Pitch
2. Roll
3. Yaw
4. Turn

Classification Training - Principles of Flight Revision

Classification Revision Quiz