Answer each of the following by selecting and clicking the correct "radio button"

1. The official Charts & Regulations requires:
That all mariners have on board the smallest charts of the operating waters.
That all mariners have the largest scale charts of the waters where the vessel is located.
That mariners need not have charts if they have a GPS system aboard.
None of the above.

2. The shortest distance between two points on the globe is:
A straight line between them
The arc of a great circle connecting the two points
Can be determined if the latitude of both points is known
Can be determined if the longitude of both points is known

3. Knowing the latitude and longitude of a point on the earth:
Is not necessary to put an accurate (WPT) into a GPS instrument
Gives its geographical position
Givesthe datum reference point of a chart
None of the above

4. To store a waypoint (WPT):
Just go to the position where we want to store the WPT and push button marked "Save"
Go to the CREATE WPT position in the GPS and enter latitude & longitude
Both (a) & (b) are correct but answer (b) is the preferred method
None of the above

5. The most common unit of measurement of distance used in marine navigation is:
The kilometer
The statue mile
The nautical mile which is equal to 5280 feet
The nautical mile which is equal to 1 minute of a degree of latitude at the equator (6076.1 feet)

6. A GPS receiver indicates a boat is travelling at a speed of 4 knots. In 10 minutes it could be expected that the boat will travel over ground:
a distance of approximately 4050 feet [(4X6076.1)/6=4050.1]
a distance of 4 nautical miles
a distance of approximately 309 metres [(1852/6)=308.667]
an indeterminate distance since we do not know the rate of current flow

7. All directions & bearings in navigation calculations are:
Measured using true rather than magnetic degrees
Measured relative to the parallels of latitude
Measured clockwise in the horizontal plane

8. All GPS instruments calculate COG(Course Over Ground) or CMG(Course Made Good) by.
Having more than one channel to receive signals
Determining the amount of movement between consecutive positions
Are designed to receive signals from a separate receiver to correct for SA
None of the above answers is correct.

9. The COG given by the GPS:
Is the same as the ship's heading
Is the same as the Course Made Good but may not be the same as the ship's heading
Can be used instead of a reading from a compass
All of the above are correct

10.Speed can be calculated
Relative to or with reference to the ground by means of a GPS
By a knotmeter which measures speed relative to the water
Both (a) and (b) are possible methods
None of the above