Instrument Flight Rules (IFR) Practice Exam

When checking VOR receivers using a VOR Test Facility (VOT), the accepted tolerance for the readings is that the VOR should indicate 180 degrees when tuned to the VOT frequency and pointing towards the VOT. Conversely, when pointing away from the VOT, the indication should be 360 degrees, or more accurately, 0 degrees.

The option stating 176 degrees TO and 003 degrees FROM falls within these tolerances, as it indicates that the VOR receiver is performing correctly with minor variations that are acceptable within the standard. This is aligned with the FAA guidelines, which specify that the indication must be within 4 degrees of the actual.

An understanding of how VOR testing works supports why this choice is appropriate, as it recognizes the necessary precision for both incoming and outgoing signals while allowing for a small variance in each case. This emphasizes the importance of operational safety and effectiveness in navigation using VOR systems.