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2-41.
Refer to figure 2-8 in your text.
If the magnetic course is 030°
(DG ON), what is the approximate
compass course?
1.
028°
2.
029°
3.
030°
4.
031°
2-42.
What is the compass deviation for a
magnetic course of 195° (DG ON)?
1.
0.0°
2.
.5°W
3.
.5°E
4.
1.5°E
2-43.
The bearing of a range is 081°
magnetic, and your ship's magnetic
compass reads 079.5°. What is the
compass deviation?
1.
1.5°E
2.
1.5°W
3.
2.0°E
4.
2.0°W
2-44.
Your ship is in the northern
hemisphere. What is the rule for
applying deviation to the magnetic
compass course to achieve compass
course?
1.
Add east deviation, and add
west deviation
2.
Add east deviation, and
subtract west deviation
3. Add west deviation, and add
east deviation
4.
Subtract west deviation, and
subtract east deviation
2-45.
What is the purpose of degaussing?
1.
To detect magnetic compass
error
2.
To counteract a ship's magnetic
field
3. To correct magnetic compass
error
4.
To fix the location of the ship
IN ANSWERING QUESTIONS 2-46 THROUGH 2-49,
SELECT FROM COLUMN B THE DEGAUSSING
COMPONENT THAT MATCHES THE DEFINITION IN
COLUMN A.
RESPONSES ARE USED ONLY ONCE.
A. DEFINITION
B. COMPONENT
2-46. Produces a magnetic
1. F coil
field that will coun-
teract the ship's
2. L coil
longitudinal permanent
and induced magnetism
3. M coil
2-47. Produces a magnetic
4. A coil
field that will coun-
teract the ship's
athwartship permanent
and induced magnetism
2-48. Produces a magnetic field
that will counteract the
ship's vertical permanent
and induced magnetism
2-49. Made up of loops in
vertical planes, produces
a magnetic field that will
counteract the ship's
longitudinal permanent and
induced magnetism
2-50
2-51
2-52
Which of the following is NOT a
proper name for a heading?
1.
True
2.
Magnetic
3.
Relative
4.
Compass
Which of the following terms
defines converting a compass course
to a true course?
1.
Correcting
2.
Uncorrecting
3.
Compensating
4.
Adjusting
Which of the following factors must
be applied to a true heading to
obtain a magnetic heading?
1.
Variation and deviation
2.
Gyro error and variation
3.
Gyro error and deviation
4.
Compass error and deviation
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