FAA Electronic Navigation Exam 1
In the event that the aircraft has a vacuum system for other gyroscopic instruments, what benefit does an electric turn coordinator offer?
When the aircraft is at the appropriate checkpoint on the airport's surface, how should the pilot do a VOR receiver check?
Explanation:
The plane can be going in any direction as long as it is at the appropriate checkpoint on the airport's surface. OBS should be placed on the specified radial. The CDI must center with a FROM indication, plus or minus 4ยฐ of that radial. The OBS being set to 180ยฐ or 000ยฐ refers to a check utilizing a VOT, hence answers B and C are incorrect.
(Refer to Figure 23.) On what course should the VOR receiver (OBS) be set to navigate direct from Hampton Varnville Airport (area 1) to Savannah VORTAC (area 3)?
(Refer to Figure 20.) What is your approximate position on low altitude airway Victor 1, southwest of Norfolk (area 1), if the VOR receiver indicates you are on the 340ยฐ radial of Elizabeth City VOR (area 3)?
Using your plotter, draw a line from the Elizabeth City VOR to extend the 340ยฐ radial to where it intersects Victor 1. Using the sectional side of your plotter and reading the nautical miles scale, measure the distance of this point from the Norfolk VORTAC: 18 NM. (Note: Don't get trapped into using the 340 feet MSL obstacle as the 340ยฐ radial.). Answers A and C are incorrect because neither distance on Victor 1 would put you on the 340ยฐ radial of Elizabeth City VOR.