Alvirne AFJROTC - SoF Chapter 1

What is the primary function of an airplane's ailerons?

• To control the pitch

• To control the yaw

• To control the roll

• To control the altitude

What control surface is used to change an aircraft's pitch?

• Ailerons

• Elevators

• Rudder

• Flaps

The action of an aircraft around its vertical axis is called:

• Precession

• Pitch

• Roll

• Yaw

When air flows over an airfoil, where is the air pressure lowest?

• Airfoil top surface

• Airfoil bottom surface

• Airfoil leading edge

• Airfoil trailing edge

Which force is responsible for pulling an aircraft towards the Earth?

• Thrust

• Lift

• Weight

• Drag

According to Newton's Third Law, what happens when an airplane's jet engine expels hot gas backward during takeoff roll?

• The airplane experiences drag

• The airplane experiences a forward force (thrust)

• The airplane lifts upward

• The airplane experiences increased weight

What effect does an increase in the aircraft's speed have on the relative wind?

• The relative wind speed decreases

• It has no effect on the relative wind

• It causes the relative wind to move in the opposite direction

• The relative wind speed increases

What is the primary function of wing flaps?

• To increase lift and drag

• To roll the aircraft

• To provide stability during flight

• To increase speed

The elevators are located on what part of the airplane?

• Wings

• Empennage

• Fuselage

• Powerplant

Which of the following best describes how Bernoulli's Principle generates lift on an airplane wing?

• Air moves slower over the top of the wing, increasing pressure above it

• Air moves faster over the top of the wing, decreasing pressure above it

• Air moves faster beneath the wing, decreasing pressure below it

• Air moves at the same speed above and below the wing, creating no pressure differential