faa test practice

The angle between the chord line of an airfoil and the relative wind is known as the angle of

• Lift

• Attack

• Indidence

Answer explanation

The angle of attack is the acute angle between the chord line of the wing and the direction of the relative wind.

The term angle of attack is defined as the angle between the

• Chord line of the wing and the relative wind

• Airplanes longitudinal axis and that of the air striking the airfoil

• Airplane’s center line and the relative wind

The angle of attack at which an airfoil stalls will

• Increase if the cg is moved forward

• Remain the same regardless of gross weight

• Change with an increase in gross weight

What is the effect of advancing the throttle in flight?

• Both aircraft ground speed and angle of attack will increase

• Airspeed will remain relatively constant but the aircraft will climb

• The aircraft will accelerate, which will cause a turn to the right

Which of statement relates to Bernoulli’s principle?

• For every action there is an equal and opposite reaction

• An additional upward force is generated as the lower surface of the airfoil deflects air downward

• Air traveling faster over the curved upper surface of an airfoil causes lower pressure on the top surface .

The four forces acting on an airplane in the flight are

• Lift, weight, thrust, and drag

• Lift, weight, gravity, and thrust

• Lift, gravity, power, and friction

What is the purpose of the rudder on an airplane

• To control the yaw

• To control over banking tendency

• To control roll

What is the relationship of lift, drag, thrust, and weight when the airplane is in straight-and-level flight?

• Lift equals weight and thrust equal drag

• Lift, drag, and weight equal thrust

• Lift and weight equal thrust and drag

When are the four forces that act on an airplane in equilibrium

• During unaccelerated flight

• When the aircraft is accelerating

• When the aircraft is at rest on the ground

The best speed to use for a glide is one that will result in the greatest glide distance for a given amount of

• Altitude

• Fuel

• Drag