2a553a 2011 Vol 4
2011 online CDC course URE questions
- 1.(601) What is the purpose of the very-high frequency omnirange system?
- A.
Determine up/down guidance
- B.
Determine left/right guidance
- C.
Determine bearing to a station
- D.
Indicate distances along the approach
- 2.(601) The basic operating principle of very-high frequency omnirange is phase comparing the
- A.
30-Hz reference and 9,960-Hz frequency-modulated (FM) signals
- B.
30-Hertz (Hz) reference and 30-Hz variable signals
- C.
30-Hz variable and 9,960-Hz FM signals
- D.
90- and 150-Hz modulated signals
- 3.(601) If the magnetic bearing to a very-high frequency omnirange station is 225°, the phase difference between the 30-Hertz (Hz) reference and 30-Hz variable signals is
- A.
15°
- B.
45°
- C.
135°
- D.
225°
- 4.(601) Very-high frequency omnirange aural (station identification) signals are transmitted
- A.
Continuously
- B.
At 20-second intervals
- C.
At 30-second intervals
- D.
At specified time intervals
- 5.(602) The instrument landing system localizer course width at a distance of 10 miles from the transmitter is normally
- A.
5°
- B.
2.5°
- C.
0.7°
- D.
0.5°
- 6.(602) What frequency band is used to transmit instrument landing system glide slope information?
- A.
Low frequency
- B.
High frequency
- C.
Ultra-high frequency
- D.
Very-high frequency
- 7.(602) The instrument landing system marker beacon carrier frequency is
- A.
68.1 kilohertz (kHz)
- B.
68.1 megahertz (MHz)
- C.
75 kHz
- D.
75 MHz
- 8.(603) What microwave landing system outputs are provided to the pilot’s and copilot’s horizontal situation and attitude director indicators for approach and takeoff?
- A.
Azimuth signals
- B.
Elevation signals
- C.
Steering indications
- D.
Ground station indications
- 9.(603) What is not a microwave landing system output?
- A.
Azimuth deviation
- B.
Glide slope deviation
- C.
Azimuth warning flag
- D.
Glide slope correction flag
- 10.(603) On how many channels are the microwave landing system receivers capable of operating?
- A.
200
- B.
500
- C.
559
- D.
669
- 11.(603) What is the frequency range of the microwave landing system receivers?
- A.
200 – 500 megahertz (MHz)
- B.
500 – 669 MHz
- C.
669 – 5031 MHz
- D.
5031 – 5091 MHz
- 12.(603) Which antennas are shared by microwave landing system numbers 1 and 2?
- A.
1 and 2
- B.
1 and 3
- C.
3 and 2
- D.
3 and 4
- 13.(603) Which microwave landing system component allows for selection of system status?
- A.
Data bus coupler
- B.
Receiver power on relay
- C.
Flight director mode selector
- D.
Integrated display computer unit
- 14.604) When an instrument landing system frequency is selected, the ARN–127 very-high frequency omnirange receiver parks the horizontal situation indicator bearing pointer at the
- A.
3 o’clock position
- B.
4 o’clock position
- C.
6 o’clock position
- D.
10 o’clock position
- 15.(605) Which radial will the aircraft be positioned on if the aircraft is located north of the veryhigh frequency omnirange station?
- A.
270°
- B.
180°
- C.
090°
- D.
000°
- 16.(605) To get a FROM flag in view on the horizontal situation indicator when the magnetic bearing to the very-high frequency omnirange station is 75°, the selected course should be manually set to
- A.
75°
- B.
150°
- C.
210°
- D.
360°
- 17.(606) During instrument landing system operation, a full-scale deflection of the horizontal situation indicator vertical needle indicates the aircraft is off course from the runway centerline by
- A.
200 feet
- B.
400 feet
- C.
0.6°
- D.
2.5°
- 18.(606) In instrument landing system operation, a deflection of two dots on the attitude director indicator glide slope deviation scale indicates the aircraft is
- A.
0.25° off glide path
- B.
2.5° off glide path
- C.
0.6° off glide path
- D.
6.0° off glide path
- 19.(606) When the instrument landing system marker beacon amber (orange) lamp illuminates, the pilot hears a
- A.
400-Hertz (Hz) tone
- B.
3,000-Hz tone
- C.
1,000-Hz tone
- D.
1,300-Hz tone
- 20.(607) The total number of very-high frequency omnirange/instrument landing system (VOR/ILS) channels that can be selected by the AN/ARN–147 VOR/ILS control box is
- A.
40
- B.
160
- C.
200
- D.
540
- 21.(607) If the very-high frequency omnirange station signal is lost or the receiver malfunctions, the ARN–147 system parks the bearing pointer at the
- A.
3 o’clock position
- B.
6 o’clock position
- C.
9 o’clock position
- D.
12 o’clock position
- 22.(607) In very-high frequency omnirange (VOR) mode, what information is sent to the horizontal situation indicator by the ARN–147 VOR/localizer receiver?
- A.
TO/FROM, heading, and relative bearing
- B.
Relative bearing, flag alarm, and heading
- C.
Flag alarm, distance, and left/right deviation
- D.
Left/right deviation, flag alarm, and TO/FROM
- 23.(607) What glide slope information is provided to the attitude director indicator when the AN/ARN–127 is operating in the instrument landing system mode?
- A.
Audio signals
- B.
Navigation signals
- C.
Up/down deviations
- D.
Left/right deviations
- 24.(608) The main reference burst is transmitted when the main lobe of the tactical air navigation surface beacon radiation pattern is due
- A.
North
- B.
South
- C.
East
- D.
West
- 25.(608) A tactical air navigation surface beacon provides a station identification code (beacon identity tone) every
- A.
7.5 seconds
- B.
20 seconds
- C.
30 seconds
- D.
40 seconds
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