## AVIA 305 Test 1 Liberty University

AVIA 305 Quiz Aircraft Performance

AVIA 305 Quiz Maneuvering Performance

AVIA 305 Quiz Airspeed, Airfoils, Lift, and Drag

AVIA 305 Quiz Stability

1. An airplane is operating from an airfield that has a barometric pressure of 28.86 in. Hg and a runway temperature of 20C. Calculate (or find in Table 2.1) the Temperature Ratio:
2. The corrections that must be made to indicated airspeed (IAS) to obtain calibrated airspeed (CAS) are:
3. A large Reynolds number (greater than 10 million) indicates
4. An airplane is operating from an airfield that has a barometric pressure of 28.86 in. Hg and a runway temperature of 20C. Calculate (or find in Table 2.1) the Pressure Ratio:
5. For a cambered airfoil, an increase in velocity results in
6. Reference Figure 2. #4 is the
7. For a symmetrical airfoil,
8. As thickness of an airfoil is increased, the stall AOA
9. Pressure ratio can be defined as:
10. Reference Figure 2. #2 is the
11. Aerodynamic Force (AF) resolves into which to aerodynamic components?
12. Solve for left and right moment arm and fulcrum force against the seesaw(respectively)(See Figure 1_Test 1):
13. Equilibrium is defined as “a state of balance or equality between opposing forces.” What two requirements must be met in order to be considered in a state of equilibrium?
14. An aircraft weighs 12,000 lbs. If the coefficient of friction is 0.8, find the braking force Fbon the airplane.
15. Laminar flow airfoils (NACA 66-XX series) are designed for the airflow to remain laminar much further back from the leading edge than on the conventional airfoils. What effect does an increase in AOAhave on the laminar characteristics of a laminar flow airfoil?
16. A helicopter has a rotor diameter of 24 feet and it is being operated in a hover at 338.25 rpm. The tip speed (V t) of the rotor is:
17. An aircraft flying from LYH to RDU at 5,000 feet and 110 KIAS is said to have what kind of quantity?
18. The best engine-out glide ratio occurs at
19. Potential Energy is defined as:
20. An aircraft is traveling west at an airspeed of 120 knots and is experiencing a crosswind of 20 knots from the north (90). Find the Drift Angle.
21. An airplane is operating from an airfield that has a barometric pressure of 28.86 in. Hg and a runway temperature of 20C. Calculate (or find in Table 2.1) the approximate Density Altitude:
22. Newton’s Third Law of Motion states that:
23. A quantity that has bothmagnitude and direction is called:
24. The mean camber line can be defined as
25. Drag due to the interference of boundary layers from different parts of the aircraft is known as
26. The angle between the relative wind and the chord line of an airfoil is the
27. The most employed technique for reducing induced drag on modern aircraft is the use of
28. An aircraft’s turbojet engine produces 10,000 lbs of thrust at 200 knots true airspeed. What is the equivalent power that it is producing?
29. For temperatures to be used in calculating the effects on performance, the appropriate absolute scale must be used. Assuming you maintain a constant altitude, a decrease in temperature will:
30. Wingtip vortices contribute to which type of drag
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