COURSES AND BEARINGS, WHEN RECORDED,
ARE CHARACTERIZED ACCORDING TO THE TYPE
OF COMPASS USED. IN ANSWERING QUESTIONS
10-57 THROUGH 10-60, SELECT FROM COLUMN B
THE PROPER METHOD OF RECORDING A
BEARING WHEN UTILIZING THE COMPASS IN
COLUMN A.
A. COMPASS
B. DESIGNATION
10-57. Standard
1. PSTCO
10-58. Steering
2. PSC
10-59. Gyro
3. PGC
10-60. That which points to true
rather than magnetic north
10-61.
The basis of determining all true bearings and
courses is true north. This being so, why don’t
navigators use the compass that always points to
true north as the ship’s standard of compass
accuracy?
1.
It is affected by magnetic variation
2.
Others are unaffected by magnetic deviation
3.
It is subject to mechanical and electrical
failure
4.
Others are never subject to failure
10-62.
What term denotes the nonmagnetic metal ring
that is equipped with a sighting device and tits
over a gyro repeater or a magnetic compass?
1.
Bearing circle
2.
Azimuth circle
3.
Telescopic alidade
4.
Vane circle
10-63.
From your ship’s position you can see (A)
Venus and (B) Cape Henry Light. In what way
should you report their direction?
1.
Azimuth of (A), bearing of (B)
2.
Azimuth of both (A) and (B)
3.
Bearing of (A), azimuth of (B)
4.
Bearing of (A) and (B)
10-64.
When taking a bearing of a lighthouse, what
should you train on that lighthouse?
1.
Prism
2.
Vane
3. Hairline
4. Reflector
10-65.
How is the bearing of an object indicated on a
bearing or azimuth circle?
1.
By the hairline in the reflecting prism of
the after vane
2.
By the hairline in the reflecting prism of
the forward vane
3.
By the vertical wire in the near vane
4.
By the vertical wire in the far vane
10-66.
When taking an azimuth of the sun, you should
train the azimuth circle so that the sunlight is
reflected from the concave mirror into what
part?
1. The peep vane
2. The far vane
3. The prism
4. The mirror behind the far vane
10-67.
When measuring the azimuth of a dimly shining
star, you should train the azimuth circle so that
the star’s position is in what position?
1.
In the concave mirror
2.
In the prism attachment
3.
Under the hairline of the prism attachment
4.
Under the hairline in the far vane prism
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