ATC BASICS BLOCK 2 QUESTIONS &
ANSWERS|| 2025 LATEST UPDATE
"The internal pressure of a fluid decreases at point where the speed of the fluid
increases" is part of what principle
A. Bernoulli's Principle
B. Newton's law of motion
C. Hindenberg's Theory - ANSWER A. Bernoulli's Principle
What is the primary source of lift? - ANSWER Bernoulli's Principle
What is the secondary source of lift? - ANSWER Newton's third law
Describe Newton's third law. - ANSWER Upward force generated by air striking the
underside of an airfoil and being deflected downward.
What is relative wind? - ANSWER Direction of airflow produced by object moving
through the air
What direction does relative wind flow? - ANSWER Parallel with and opposite to
direction of flight
Three main airfoils. - ANSWER Wing, horizontal stabilizer, prop
What is the chord line? - ANSWER imaginary line from the leading edge to trailing edge
of the wing.
What are the parts of an airfoil? - ANSWER Leading edge, Trailing edge, and Chord
line
What is angle of attack? - ANSWER angle between the chord line and relative wind.
Describe camber - ANSWER Curvature of an airfoil, from leading edge to the trailing
edge.
What is the shape or form of a wing viewed form above? - ANSWER Wing Planform
Four forces affecting flight - ANSWER Lift, Weight, Trust, Drag
Three properties that affect air density and A/C performance - ANSWER Temp, Altitude
of elevation, humidity
What is the average surface temp in the U.S. - ANSWER 59 degrees.
, What is the average lapse rate? - ANSWER 3.5 degrees Fahrenheit (2 degrees C)
every 1,000 feet.
What air is denser. Warm or cold? - ANSWER Cold
Lower pressure is associated with what kind of air? - ANSWER Thin, or less dense air
Does High or Low density altitude indicate thinner air? - ANSWER High
List some ways that performance is reduce by Higher density altitude, High temp, and
High elevation - ANSWER Longer takeoff roll, Longer landing roll, Slower climb rate,
Landing speed increased.
Three propeller types - ANSWER Adjustable, (adjust on ground). Fixed pitch.
Controllable, (auto varied in flight.
Longitudinal axis rotates ______ - ANSWER Roll
Lateral axis rotates ________ - ANSWER Pitch
Vertical axis rotates ________ - ANSWER Yaw
Longitudinal axis controls what? - ANSWER Angle of bank. Heading.
Lateral axis controls what? - ANSWER Angle of attack. Altitude.
Vertical axis controls what? - ANSWER Left to right. Streamlined motion.
Primary control surfaces - ANSWER Ailerons, Elevator, Rudder
Ailerons controls _____ - ANSWER Roll
Elevator controls _______ - ANSWER Pitch
Rudder controls ________ - ANSWER Yaw
Ailerons are where on the A/C - ANSWER Outboard trailing edge of the wing. Rotates
on longitudinal axis.
What is adverse yaw? - ANSWER Tendency of nose of A/C to yaw in opposite direction
of turn. caused by drag of down aileron
Elevator is where on the A/C and what does it control. - ANSWER Rear of horizontal
stabilizer. Rotates on lateral axis. controls angle of attack.
ANSWERS|| 2025 LATEST UPDATE
"The internal pressure of a fluid decreases at point where the speed of the fluid
increases" is part of what principle
A. Bernoulli's Principle
B. Newton's law of motion
C. Hindenberg's Theory - ANSWER A. Bernoulli's Principle
What is the primary source of lift? - ANSWER Bernoulli's Principle
What is the secondary source of lift? - ANSWER Newton's third law
Describe Newton's third law. - ANSWER Upward force generated by air striking the
underside of an airfoil and being deflected downward.
What is relative wind? - ANSWER Direction of airflow produced by object moving
through the air
What direction does relative wind flow? - ANSWER Parallel with and opposite to
direction of flight
Three main airfoils. - ANSWER Wing, horizontal stabilizer, prop
What is the chord line? - ANSWER imaginary line from the leading edge to trailing edge
of the wing.
What are the parts of an airfoil? - ANSWER Leading edge, Trailing edge, and Chord
line
What is angle of attack? - ANSWER angle between the chord line and relative wind.
Describe camber - ANSWER Curvature of an airfoil, from leading edge to the trailing
edge.
What is the shape or form of a wing viewed form above? - ANSWER Wing Planform
Four forces affecting flight - ANSWER Lift, Weight, Trust, Drag
Three properties that affect air density and A/C performance - ANSWER Temp, Altitude
of elevation, humidity
What is the average surface temp in the U.S. - ANSWER 59 degrees.
, What is the average lapse rate? - ANSWER 3.5 degrees Fahrenheit (2 degrees C)
every 1,000 feet.
What air is denser. Warm or cold? - ANSWER Cold
Lower pressure is associated with what kind of air? - ANSWER Thin, or less dense air
Does High or Low density altitude indicate thinner air? - ANSWER High
List some ways that performance is reduce by Higher density altitude, High temp, and
High elevation - ANSWER Longer takeoff roll, Longer landing roll, Slower climb rate,
Landing speed increased.
Three propeller types - ANSWER Adjustable, (adjust on ground). Fixed pitch.
Controllable, (auto varied in flight.
Longitudinal axis rotates ______ - ANSWER Roll
Lateral axis rotates ________ - ANSWER Pitch
Vertical axis rotates ________ - ANSWER Yaw
Longitudinal axis controls what? - ANSWER Angle of bank. Heading.
Lateral axis controls what? - ANSWER Angle of attack. Altitude.
Vertical axis controls what? - ANSWER Left to right. Streamlined motion.
Primary control surfaces - ANSWER Ailerons, Elevator, Rudder
Ailerons controls _____ - ANSWER Roll
Elevator controls _______ - ANSWER Pitch
Rudder controls ________ - ANSWER Yaw
Ailerons are where on the A/C - ANSWER Outboard trailing edge of the wing. Rotates
on longitudinal axis.
What is adverse yaw? - ANSWER Tendency of nose of A/C to yaw in opposite direction
of turn. caused by drag of down aileron
Elevator is where on the A/C and what does it control. - ANSWER Rear of horizontal
stabilizer. Rotates on lateral axis. controls angle of attack.
