CPL Navigation and Radio Aids 2

Question 1

What does a VOR receiver indicate when the aircraft is directly over the station in the cone of silence?

Accepted Answer

The TO/FROM indicator fluctuates and the CDI swings erratically

Answer

The CDI centers with a TO flag

Answer

The CDI centers with a FROM flag

Answer

The OFF flag appears and the CDI deflects fully left

Question 2

DME slant range error is most significant when the aircraft is:

Accepted Answer

At high altitude and close to the station

Answer

At low altitude and far from the station

Answer

At high altitude and far from the station

Answer

At low altitude and close to the station

Question 3

While flying outbound on the 180° radial (OBS 180°, FROM indication), the CDI deflects to the left. To intercept the 180° radial, the pilot should turn:

Accepted Answer

Left

Answer

Right

Answer

To heading 000°

Answer

The CDI shows reverse sensing; turn right

Question 4

The FAA-permitted tolerance for an airborne VOR receiver check over a designated checkpoint is:

Accepted Answer

±4°

Answer

±2°

Answer

±6°

Answer

±10°

Question 5

While flying a constant heading, an aircraft crosses the 350° radial then the 020° radial of a VOR in 2 minutes. Approximately how many minutes away is the station?

Accepted Answer

4 minutes

Answer

6 minutes

Answer

12 minutes

Answer

20 minutes

Question 6

A High altitude VOR (HVOR) provides reliable signal service up to:

Accepted Answer

130 NM between 14,500 ft MSL and FL600

Answer

40 NM at all altitudes

Answer

100 NM from the surface to 18,000 ft MSL

Answer

200 NM above FL450

Question 7

VOR course scalloping (rapid CDI oscillation at a specific location) is most commonly caused by:

Accepted Answer

Multipath signal reflections from terrain or structures near the VOR station

Answer

Low battery voltage in the aircraft receiver

Answer

Aircraft flying above the published service volume

Answer

Magnetic variation differences between the aircraft and the station