ATC Basics Block 2 Midterm Exam
Questions And 100% Correct Answers.
"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.
, 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.
Questions And 100% Correct Answers.
"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.
, 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.
