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AIM Block 1 Quiz
Prep for 1st quiz
| Question | Answer |
|---|---|
| What percentage of the earth's atmosphere is nitrogen? | 78% |
| What percentage of the earth's atmosphere is oxygen? | 21% |
| What is the air pressure at sea level? | 14.69 PSI |
| What is the atmospheric pressure (using mercury) at sea level? | 29.92 mmHg |
| What temperature, in Fahrenheit, is used on a standard day? | 59° |
| What temperature, in Celsius, is used on a standard day? | 15° |
| What forces act on an airplane? | Lift, Weight, Thrust, & Drag |
| "As the velocity of a fluid (air) increases, its internal pressure decreases" is represented by what principle? | Bernoulli's principle |
| What are the axes of an aircraft? | Longitudinal, Lateral, & Vertical |
| What are the temperature scales used in avionics? | Celsius, Fahrenheit, Kelvin, & Rankine |
| What happens to the air density as altitude decreases? | Increases |
| How much does water vapor weigh as an equal amount of dry air approximately? | 5/8 |
| What is the angle created by the chord line and the relative wind called? | Angle of attack |
| What are the types of drag? | Parasite, Profile, & Induced |
| What is the ratio of the wingspan to the mean cord called? | Aspect ratio |
| What is a major factor affecting the physical properties of fluids? | Temperature |
| What is the air flow over the wing the same as half as? | Venturi |
| What will increase if the camber of a wing is increased? | Lift |
| What is used to counteract wingtip vortices? | Winglets |
| What are the small obstructions that impede the smooth flow of air over the wing at high angles of attack called? | Stall strips |
| What increases lift at high angles of attack? | Slats |
| What increases lift by increasing the surface area (most efficient type of flap)? | Fowler |
| What flap deploys downward and does not change the upper camber? | Split |
| What are the types of trailing edge flaps? | Plain, Split, Slotted, & Fowler |
| What kind of tab is used when the need to move the flight control is beyond the capability of the pilot? | Servo |
| What kind of tab is used when an excessive amount of force is required to move a flight control? | Balance |
| What kind of tab is used to create an aerodynamic force that keeps the flight control in a deflected position? | Trim |
| What is movement around the longitudinal axis called? | Roll |
| What is movement around the lateral axis called? | Pitch |
| What is movement around the vertical axis called? | Yaw |
| What is the amount of time it takes for an aircraft to react to its static stability and return to equilibrium? | Positive dynamic stability |
| When all four forces acting upon an aircraft in flight are equal, the aircraft is in? | Equilibrium |
| The speed of sound changes with what? | Temperature |
| What is the amount of water vapor in the air called? | Humidity |
| What is reached when the air reaches a state where it can hold more water at a given temperature? | Absolute humidity |
| What is the imaginary line drawn through an airfoil from the leading edge to the trailing edge called? | Chord line |
| What angle is created between the longitudinal axis and the chord line? | Angle of incidence |
| What is characterized by the temperature the air must be cooled to, at a constant pressure, to become saturated? | Dew point |
Created by:
Cbarrett09
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