Тест по Introduction to Navigation (CES v5.0)
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Right answers:
1
A light is given with the following characteristics: FI W (3+1) 12 s 25 m 12M. Is this:
Your answer is correct:
A white light flashing for 12 seconds and having a range of 12 Nautical Miles?
2
How do you find the Nautical Mile scale on the chart?
Your answer is correct:
By measuring one minute of Latitude.
3
How do you take a running fix?
Your answer is correct:
By taking bearings from a landmark at time intervals and measuring the distance covered in the intervals.
4
How long would 15 minutes of longitude be at a latitude of 60° North?
Your answer is correct:
7,5 NM.
5
How long would one degree of latitude be at a latitude of 30° North?
Your answer is correct:
60 NM.
6
If there were suddenly an immediate danger for both the vessel and its crew, would you send a MAYDAY on:
Your answer is correct:
Channel 16 with 25 Watts output?
7
If you sight the sun’s meridian in the Southern Hemisphere in August, would you then:
Your answer is correct:
Subtract the elevation from 90° and subtract the declination?
8
If you spot a Racon on the radar and try to visually identify its light, would you look for:
Your answer is correct:
It doesn’t matter?
9
If your timepiece is correct to within 1 minute of an hour, what would be your margin of error in estimating your Longitude at Latitude 60° North?
Your answer is correct:
Within 7,5 NM.
10
In the unlikely event that a distress situation allows you to send only a very short message, after MAYDAY would you first say:
Your answer is correct:
Your call sign and position?
11
On a route from Santander, Spain (43 36 N, 005 38 W) to Brest, France (48 15 N, 004 46 W) would a Great Circle navigation bring you:
Your answer is correct:
About the same as the Rhumb Line navigation?
12
The average time between two High Waters is 12 hours and 25 minutes, because this is the time it takes for:
Your answer is correct:
The moon to be at the opposite side of the earth.
13
What can you find from a single aeronautical RDF?
Your answer is correct:
A bearing.
14
What does a Racon help with?
Your answer is correct:
Identifying a seamark.
15
What does the Doppler log measure?
Your answer is correct:
The Speed Over Ground.
16
What is a Gnomonic chart?
Your answer is correct:
A chart, where Great Circle lines can be drawn as a straight line.
17
What is the easiest way to find the latitude? By measuring the elevation of:
Your answer is correct:
The Pole star.
18
What is the Tidal Height?
Your answer is correct:
The water above the Lowest Astronomical Tide.
19
What made finding the longitude by lunar transit inaccurate?
Your answer is correct:
The lack of an accurate almanac.
20
What was the Selective Availability?
Your answer is correct:
A reduction in the system’s accuracy.
21
What was the advantage of the Omega system over its predecessors?
Your answer is correct:
It has worldwide coverage.
22
What would be the colour of an IALA starboard hand lateral buoy, as seen when sailing toward land, in Europe?
Your answer is correct:
Green.
23
Which Beaufort Force is defined as a gale?
Your answer is correct:
Force 8.
24
Which instrument uses a plumb-line?
Your answer is correct:
The quadrant.
25
Who has right of way in a Traffic Separation Scheme?
Your answer is correct:
The vessel coming from the starboard side.
26
Who ran the Decca system?
Your answer is correct:
A British company.
27
Would you take the morning sun’s azimuth in order to:
Correct answer:
Find the true North?
Your Answer:
Find your latitude?
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