1-111

How does the aileron control the roll of an aircraft?

• By changing the angle of attack on each wing

• By changing the speed of the aircraft

• By altering the shape of the fuselage

• By shifting the center of gravity

• By adjusting the throttle

Which of the following describes a laminar flow of air?

• Turbulent airflow with swirls and eddies

• Smooth, streamlined airflow over the aircraft's surface

• Airflow that causes drag at high speeds

• Airflow that generates lift over the wing

• Airflow that occurs when the aircraft is stalled

What happens to the lift produced by an aircraft wing as the angle of attack increases?

• Lift fluctuates randomly

• Lift decreases

• Lift remains the same

• Lift increases

• Lift becomes zero

What type of stability describes an aircraft that naturally returns to its original flight path after being disturbed?

• Positive stability

• Negative stability

• Neutral stability

• Dynamic stability

• Longitudinal stability

Which of the following best describes the relationship between airspeed (TAS) and lift?

• Lift is independent of airspeed

• Lift decreases with the square of the airspeed

• Lift increases with the square of the airspeed

• Lift increases linearly with airspeed

• Lift decreases linearly with airspeed

What is the purpose of the rudder in an aircraft?

• To control the yaw of the aircraft

• To control the pitch of the aircraft

• To control the roll of the aircraft

• To increase the lift produced by the wings

• To increase the drag on the aircraft

In which of the following situations does a wing produce the maximum lift?

• At a high altitude

• At a low angle of attack

• At a high angle of attack

• When the airspeed is zero

• At the critical angle of attack

What is the effect of reducing the angle of attack on the lift produced by an aircraft?

• Lift is halved

• Lift increases

• Lift becomes constant

• Lift remains unchanged

• Lift decreases

What is the primary cause of parasite drag on an aircraft?

• The angle of attack

• The weight of the aircraft

• Air resistance against the aircraft surfaces

• The shape of the wing

• The airflow over the propeller

Which of the following types of drag increases with the square of the airspeed?

• Profile drag

• Induced drag

• Parasite drag

• Wave drag

• Skin friction drag