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1-42.
You are in zone zero, longitude
east at 1300 local time. What
operation should you perform using
the zone number to obtain Greenwich
Mean Time?
1.
Multiply
2.
Add
3.
Divide
4.
Subtract
1-43.
Which of the following letters is
NOT assigned as a zone letter?
1. A
2. D
3. J
4. Y
1-44.
It is the fourth day of the month.
You have the 2000-2400 watch.
Midway through the watch your ship
crosses the international date
line, eastbound. Which of the
following times indicates the time
you should be relieved?
1.
022345M
2.
022345Y
3.
032345M
4.
032345Y
1-45.
What is the proper zone designation
for Greenwich Mean Time (GMT)?
1. HOTEL
2. MIKE
3. XRAY
4. ZULU
1-46.
In writing the letter Z, a
horizontal bar is placed through
the letter Z to prevent it from
being mistaken as the number 2.
1.
True
2.
False
1-47.
Your ship is in time zone +5R at
local time 1500. What is the
Greenwich Mean Time?
1.
1500
2.
2000
3.
2200
4.
2400
1-48.
What causes a gyrocompass to
operate?
1.
Attraction exerted by the Earth
2.
Magnetic properties of the ship
3.
True direction of the north
pole
4.
Gyro principle of a spinning
wheel
1-49.
Why is the magnetic compass used
aboard ship as the standard compass
rather than the gyrocompass?
1.
A gyrocompass is affected by
deviation
2.
A gyrocompass does not point to
true north
3.
A magnetic compass is not
affected by deviation
4.
A magnetic compass is not
affected by failure of the
ship's power supply
1-50.
What element of the magnetic
compass keeps the compass bowl
level, regardless of the ship
movement?
1.
The binnacle
2.
The gimbals
3.
The pelorus
4.
The sphere
1-51.
Your ship is in an area that has an
8° easterly variation. If your
ship's true course is 080°, what
magnetic course is being steered?
1.
070°
2.
072°
3.
080°
4.
080°
1-52.
Magnetic compass error is a
combination of errors caused by
what element(s)?
1.
Electrical current in the
atmosphere
2.
Gravitational pull
3.
Variation and deviation
4.
Precession
5
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