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5-50.
5-51.
5-52.
2.
5-53.
A strobe light may be used to
attract the attention of another
vessel in international waters.
1. True
2.
False
Which of the following is NOT a
distress signal used by the U.S.
Navy?
1. The ensign flown upside down
2. Flames on a deck
3. A rocket parachute flare
4. A continuous sounding with any
fog-signaling apparatus
When a submarine is in an emergency
situation and is coming to
periscope depth, what color smoke
flare should the submarine fire?
1. White only
2. Yellow only
3. White or yellow
4. Green
When a submarine is in serious
trouble, what color smoke flare
should the submarine fire?
1.
Red
2. Green
3. White
4.
Yellow
IN ANSWERING QUESTIONS 5-54 THROUGH 5-56,
SELECT THE REFERENCE POINT FROM COLUMN B
THAT IS USED TO CALCULATE THE TIME LISTED
IN COLUMN A. NOT ALL RESPONSES ARE USED.
A. TIME
B. REFERENCE POINT
5-54. Mean solar
1. 24 hours
5-55. Solar day
2. Fictional sun
5-56. Solar apparent
3. First point of
Aries
4. Sun
5-57.
Mean solar time and apparent solar
time are nearly equal, but apparent
solar time is the time used in
everyday life.
1. True
2. False
5-58.
The "equation of time" is the name
given to the difference between
what two types of time?
1.
Mean time and zone time
2.
Apparent time and mean time
3.
Apparent time and zone time
4.
Zone time and Greenwich mean
time
IN ANSWERING QUESTIONS 5-59 THROUGH 5-62,
SELECT FROM COLUMN B THE DEFINITION THAT
MATCHES THE TYPE OF TIME IN COLUMN A.
RESPONSES ARE USED ONLY ONCE.
A. TYPE OF TIME
B. DEFINITION
5-59. GMT
1,
5-60. LMT
5-61. ZT
5-62. ZD
3.
4.
The time at the
standard meridian
The adjustment to
be applied to
achieve GMT
Time based on
longitude
measurement
Mean solar time
with reference to
your meridian
5-63.
What kind of time is usually
indicated by a ship's clock?
1.
LMT
2.
ZT
3.
GMT
4. LAT
5-64.
Over which meridian, in relation to
your position, is the Sun located
when local apparent time is 180°?
1.
90° to the west
2.
180° to the west
3.
90° to the east
4.
180° to the east
5-65.
How many degrees does a time zone
extend on either side of the
standard time meridian?
1.
7 1/2
2.
15
3.
24
4.
30
5-66.
What time is it when the Sun is on
the Greenwich meridian (0°)?
1. Noon GMT
2. Noon LMT
3. Noon ZT
4. Each of the above
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