Practice Questions – Navigation | ICE Helicopters

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Question 1 of 22

1. Question
VDF accuracy is mostly affected by:
- Diurnal variation
- Site and propagation errors
- Coastal errors
- Night effect
Question 2 of 22

2. Question
If the scale of the chart is given as 1:500 000, how many km does 5cm represent?
- 25km
- 2.5km
- 0.25km
- 250km
Question 3 of 22

3. Question
When requesting a true bearing from a VDF station, the correct Q code phrase to use is:
- QTE
- QGH
- QDR
- QDM
Question 4 of 22

4. Question
DME operates in which frequency band?
- LF
- MF
- UHF
- VHF
Question 5 of 22

5. Question
How can Primary Radar Range be increased?
- Positioning the antenna at a high elevation above the surrounding obstacles
- Using a long and narrow radar antenna
- Increasing the rotational rate of the aerial
- Reducing transmitter power
Question 6 of 22

6. Question
The total magnetic force at a point on the Earth’s surface (T) may be resolved into a horizontal component (H) and a vertical component (Z); ‘dip’ angle is:
- 180
- The angle between H and Z
- The angle between T and Z
- The angle between H and T
Question 7 of 22

7. Question
The term which describes the time when declination (the angular distance above the plane of the equator) of the sun is highest is:
- Ellipse
- Meridian
- Solstice
- Equinox
Question 8 of 22

8. Question
When requesting a true bearing to a VDF station, the correct Q code phrase to use is:
- QDM
- QUJ
- QDR
- QTE
Question 9 of 22

9. Question
Regarding sunrise and sunset, which of these statements is correct?
- Twilight duration increases as latitude reduces
- Daylight can end earlier than the published night-time when there is poor visibility or cloud cover
- Twilight duration is 30 minutes everywhere in the world
- Daylight can end earlier than published when there is high ground to the east of the location
Question 10 of 22

10. Question
Regarding meridians on longitude and parallels of latitude which statement is correct?
- Parallels of latitude are small circles (except for the equator). They are numbered 0° at the equator and 90° at the poles.
- Meridians of longitude are semi-circles joining the poles and are numbered 0° to 360°
- Parallels of latitude are semi-circles joining the poles all have centres at the centre of the earth
- Meridians of longitude are semi-circles which are numbered 0° at the equator and 90° at the poles
Question 11 of 22

11. Question
As latitude increases the effect on the earth’s magnetic field is that the:
- Horizontal component decreases; dip angle decreases
- Horizontal component decreases; dip angle increases
- Vertical component decreases; dip angle decreases
- Vertical component decreases; dip angle increases
Question 12 of 22

12. Question
Which statement is correct regarding Secondary Surveillance Radar (SSR)?
- Indicated on the radar screen even if the transponder is not functioning
- Mandatory for aircraft operating under radar control
- Not displayed on a screen but received by fax at the radar controller's station
- Displayed on the same screen as primary radar information
Question 13 of 22

13. Question
The VOR navigation aid gives which of the following information?
- Magnetic bearing
- Range
- True bearing
- Range and Bearing
Question 14 of 22

14. Question
With the sun coming up, sunrise is said to occur when the:
- Centre of the earths disc is on the observer's horizon
- Upper limit of the sun (the first bit to become visible) is on the observer's horizon
- Centre of the earths disc is 6° below the observer's horizon
- Lower limb of the sun is on the observer's horizon
Question 15 of 22

15. Question
In reference to the earth’s magnetic field, where is the dip the least?
- Dip is equal at all locations around the earth
- The magnetic poles
- The magnetic equator
- When at a higher relative altitude
Question 16 of 22

16. Question
What is the definition of daytime?
- The time from 30 minutes before sunrise until 30 minutes after sunset
- The time from 30 minutes after sunrise until 30 minutes before sunset
- The time from 60 minutes before sunrise until 60 minutes after sunset
- The time from 60 minutes after sunrise until 60 minutes before sunset
Question 17 of 22

17. Question
Which of the following is true regarding GNSS equipment in an aircraft?
- The satellite signals provide great accuracy, but an out of date database can lead to airspace infringements
- The GNSS receiver display immediately warns the crew if the navigation signals have been lost
- The aircraft’s GNSS equipment transmits on a UHF frequency to gather navigation information
- GNSS signals are not subject to interference
Question 18 of 22

18. Question
Which frequency band does GNSS equipment transmit?
- UHF
- VHF
- SHF
- The aircraft equipment does not transmit
Question 19 of 22

19. Question
What is the difference between Track Required and Track Made Good?
- Drift
- Heading
- Closing angle
- Track error
Question 20 of 22

20. Question
What is the principle of VOR?
- The airborne VOR receiver measures the phase difference between two signals transmitted by the VOR ground station to produce a magnetic bearing from the station
- The airborne VOR receiver measures the relative bearing of a signal from the ground station to produce a magnetic bearing to the station
- The airborne VOR receiver measures the range from the ground station by measuring the time a pulse takes to reach the aircraft
- The airborne VOR receiver measures the true direction of a signal broadcast from the VOR ground station to produce a true bearing from the station
Question 21 of 22

21. Question
The longitude of a point is best described as?
- Shorter angular distance measured east/west from the Greenwich meridian
- Longer angular distance measured east/west from the Greenwich meridian
- Angular distance measured north/south from the poles
- Angular distance measured north/south from the equator
Question 22 of 22

22. Question
In reference to the earth’s magnetic field, where on earth is dip equal to zero?
- The magnetic poles
- Greenwich, London
- Nowhere
- The magnetic equator

Practice Questions – Navigation

Practice Questions – Navigation

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