1. During a VOR check using a VOR test signal (VOT), the omnibearing selector (OBS) and the To/From indicator should read
A. 0 degrees To or 180 degrees From, regardless of the pilot’s position from the VOT.
B. 0 degrees From or 180 degrees To, regardless of the pilot’s position from the VOT.
C. 180 degrees From, only if the pilot is due north of the VOT.
2. How far will an aircraft travel in two and a half minutes with a groundspeed of 98 knots?
A. 2.45 nautical miles.
B. 3.35 nautical miles.
C. 4.08 nautical miles.
3. 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.
4. An airport’s rotating beacon operating during daylight hours indicates
A. there are obstructions on the airport.
B. the air traffic control tower is not in operation.
C. that weather at the airport located in Class D airspace is below basic VFR weather minimums.
5. When checking the course sensitivity of a VOR receiver, how many degrees should the OBS be rotated to move the CDI from the center to the last dot on either side?
A. 5 to 10 degrees
B. 10 to 12 degrees
C. 18 to 20 degrees
6. If an airplane is consuming 9.5 gallons of fuel per hour at a cruising altitude of 6,500 feet and the groundspeed is 135 knots, how much fuel is required to travel 490 nautical miles?
A. 27 gallons
B. 30 gallons
C. 35 gallons
7. What is the standard temperature at 10,000 feet?
A. -5 Celcius
B. -15 C
C. +5 C
8. When turbulence causes changes in altitude and/or attitude, but aircraft control remains positive, that should be reported as
A. light.
B. severe.
C. moderate.
1. The correct answer is B. A VOT transmits only the 360, or 0-degree course. No matter where you locate the aircraft on the airport, the VOR receiver will indicate a centered needle and a From indication when the OBS is selected to 0, and a To indication when selected to 180. (Aeronautical Information Manual Chapter 1-1-4)
2. The correct answer is C. You can compute this with either a calculator or an E6B. 98 knots equals 1.633 nautical miles per hour; multiplied by 2.5 minutes gives an answer of 4.08 nautical miles. On the E6B, 98 is set opposite the black triangle. Opposite 25, or 2.5 minutes on the inner rotating scale, the outer scale will show the answer is just under 41, or 4.1 nautical miles, in this case. That's close enough to yield the correct answer for this question.
3. The correct answer is B. The process to convert true course to magnetic heading involves two steps. First, apply the wind correction angle to obtain the true heading; second, apply the variation to obtain the magnetic heading. In these calculations, a left wind correction angle is always subtracted and westerly variation is always added. (Pilot’s Handbook of Aeronautical Knowledge Chapter 15)
4. The correct answer is C. In class B, C, D, and E surface areas, operation of the airport beacon during daylight hours often indicates that the visibility is less than three miles and/or the ceiling is below 1,000 feet. It is important to note that there is no regulatory requirement for daylight operation of the beacon, and it could mean that the beacon simply was not turned off from the night before. (AIM Chapter 2-1-9)
5. The correct answer is B. Course sensitivity may be checked on a VOR by noting the number of degrees of change in the course selected as you rotate the OBS to move the CDI from center to the last dot on either side. As there are five dots on each side and each dot represents about two degrees, this should be between 10 and 12 degrees. (Pilot’s Handbook of Aeronautical Knowledge Chapter 15)
6. The correct answer is C. The answer is found in two steps. At a groundspeed of 135 knots, it will take 3.63 hours to go 490 miles (490/135). At 9.5 gallons per hour, it will take approximately 35 gallons of fuel (3.63 x 9.5). The problem may also be solved using the E6B flight computer.
7. The correct answer is A. Standard temperature is +15 Celcius at sea level and the standard lapse rate is 2 C per 1,000 feet. Thus, at 10,000 feet, the standard temperature would be 20 C colder than at sea level, or -5 C (15 C – 20 C). (Pilot’s Handbook of Aeronautical Knowledge Chapter 11)
8. The correct answer is C. Moderate turbulence is similar to light turbulence, but of greater intensity. Changes in altitude and/or attitude occur, but the aircraft remains in positive control at all times. (AIM Chapter 7-1-23)
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