1. When converting from true course to magnetic heading, a pilot should
A. subtract easterly variation and right wind correction angle.
B. add westerly variation and subtract left wind correction angle.
C. subtract westerly variation and add right wind correction angle.
2. The amount of excess load that can be imposed on the wing of an airplane depends upon the
A. abruptness at which the load is applied.
B. position of the center of gravity.
C. speed of the airplane.
3. How far will an aircraft travel in two and a half minutes with a groundspeed of 98 knots?
A. 3.35 nautical miles.
B. 2.45 nautical miles.
C. 4.08 nautical miles.
4. If a pilot suspects that the engine (with a fixed-pitch propeller) is detonating during climb-out after takeoff, the initial corrective action to take would be to
A. apply carburetor heat.
B. lean the mixture.
C. lower the nose slightly to increase airspeed.
5. During the runup at a high-elevation airport, a pilot notes a slight engine roughness that is not affected by the magneto check but grows worse during the carburetor heat check. Under these circumstances, what would be the most logical initial action?
A. Check the results obtained with a leaner setting of the mixture.
B. Taxi back to the flight line for a maintenance check.
C. Reduce manifold pressure to control detonation.
6. Who may perform preventive maintenance on an aircraft and approve it for return to service?
A. Student or recreational pilot.
B. Private or commercial pilot.
C. None of the above.
7. To receive accurate indications during flight from a heading indicator (directional gyro), the instrument must be
A. periodically realigned with the magnetic compass as the gyro precesses.
B. set prior to flight on a known heading.
C. calibrated on a compass rose at regular intervals.
8. What should an owner or operator know about airworthiness directives (AD)?
A. They are voluntary.
B. They are for informational purposes only.
C. They are mandatory.
1. The correct answer is B. Converting from true course to magnetic heading is a two-step process. The pilot would first subtract left or add right wind correction angle, then subtract easterly or add westerly variation. (Pilot’s Handbook of Aeronautical Knowledge, Chapter 15)
2. The correct answer is C. At low speeds, very little excess load can be imposed on the wing of an airplane before it will stall. However, at high speeds, a greater load factor can be imposed on the wing, and structural load limits can be exceeded. Damage can occur, and the maximum G-load can be exceeded before a stall is reached. (Pilot’s Handbook of Aeronautical Knowledge, Chapter 4)
3. The correct answer is C. At 98 knots, an aircraft is travelling 1.63 nautical miles per minute (98/60); multiplied by 2 and a half minutes (1.63 x 2.5) gives 4.08 nautical miles.
4. The correct answer is C. The key here is to attempt to cool the engine to minimize or eliminate the detonation. Leaning the mixture and applying carburetor heat can actually increase engine temperatures. (Pilot’s Handbook of Aeronautical Knowledge, Chapter 6)
5. The correct answer is A. Since applying carburetor heat enriches the fuel/air mixture, this will likely cause any engine roughness to worsen. At a high elevation airport, a full rich mixture may be too rich. Lean the mixture slowly and see if that solves the roughness problem. (Pilot’s Handbook of Aeronautical Knowledge, Chapter 6)
6. The correct answer is B. Although anyone under the supervision of a mechanic may perform preventive maintenance, FAR Part 43.7 provides that a person holding at least a private pilot certificate may approve an aircraft for return to service. Sport pilots have the same privilege, but only with Light Sport Aircraft.
7. The correct answer is A. Although setting the heading indicator is usually done before takeoff, be sure to check it and set it regularly against the magnetic compass while in flight to ensure the heading indication is accurate at all times. (Pilot’s Handbook of Aeronautical Knowledge, Chapter 7)
8. The correct answer is C. Airworthiness directives are issued under FAR Part 39. Sections 39.7 and 39.9 mandate compliance with the requirements of any AD.
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