1. The north magnetic pole of the earth
a) may be located either east or west of true north depending on where we are
b) remains stationary at all times
c) is always west of true north
d) none of the above
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2. The angular difference between magnetic north and true north is called:
a) variation
b) deviation
c) longitude
d) magnetic error
Answer:

3. A compass is gimballed either internally or externally
a) to prevent errors due to deviation
b) so that the compass card remains level as the boat pitches and rolls
c) to avoid variation
d) to allow it to be read easily
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4. The compass case is filled with a light oil to:
a) magnify the size of the observed readings
b) dampen oscillations and to reduce wear on the bearings
c) reduce deviation error
d)All of the above
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5. On a reverse reading compass:
a) the lubber's line is located towards the stern
b) the North mark is located on the North side of the compass card
c) compensating magnets need not be used
d) with the boat facing North, East on the compass is to the right of the helmsperson
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6. When installing a compass, which of the following is unimportant
a) the compass must be clearly visible by the helmsperson
b) the compass' lubber line must be parallel to the boat's longitudinal axis
c) the compass should be mounted to avoid variation as much as possible
d) the compass should be located so it is free of magnetic or electrical influences
e) none of the above are unimportant
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7. When using a hand-bearing compass
a) it is not necessary to worry about variation
b) it is not necessary to worry about deviation
c) care should be taken to take readings when you are close as possible to the main compass
d) the compass should be located so it is free of magnetic or electrical influences
e) none of the above
Answer: