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7-58.
7-59.
7-60.
7-61.
7-62.
7-63.
In inland tidal waters, what is the
approximate time between minimum
and maximum current?
1.
6 hr
2.
9 hr
3.
3 hr
4.
12 hr
IN ANSWERING QUESTIONS 7-64 THROUGH 7-69,
REFER TO TABLE 7-D AND 7-E, LOCATED AT THE
END OF THIS ASSIGNMENT. (EXCERPTS FROM
THE TIDAL CURRENT TABLE.)
7-64.
What is the time of maximum flood
at National City on 18 June 1984?
1.
1605
2.
1838
3.
1901
4.
2135
Set is the velocity of a current,
and drift is the direction of a
current.
1.
True
2.
False
How often are Tidal Currents Tables
published?
1. Quarterly
2.
Semiannually
3.
Annually
4.
Every 2 years
A total of how many volumes make up
the Tidal Current Tables?
1.
Five
2.
Two
3.
Three
4.
Four
What does the asterisk indicate in
Table 1 of the Tidal Current Table?
1.
Daily predictions
2.
Current non-existent
3.
Current wear and variable
4.
Current is at its strongest
What table in the Tidal Current
Tables provides the means to
calculate approximate periods of
slack water?
1. 1
2. 5
3. 3
4. 4
7-69
7-70.
7-71 .
7-65.
What is the time of maximum ebb at
National City on 18 June 1984?
1.
1418
2.
1420
3.
1623
4.
1713
7-66.
What is the time of slack water at
National City on 18 June 1984?
1.
1901
2.
1838
3.
1723
4.
1420
7-67.
Your ship is scheduled to anchor in
the vicinity of the Quarantine
Station, La Plaza at 1500 on 18 May
1984. What will be the current
velocity at that time?
1.
2.8 E
2.
.8 F
3.
.4 E
4.
.28 E
7-68.
What is the time of maximum flood
at San Diego Bay Entrance on 15
June 1984?
1.
0126
2.
0822
3.
1348
4.
2027
What is the time of slack water for
San Diego Bay Entrance on 15 June
1984?
1.
0437
2.
1135
3.
1603
4.
2219
What is the maximum flood velocity
of San Diego Bay Entrance on 15
June 1984?
1.
1.4 F
2.
1.1 F
3.
.9 F
4.
.7 F
When are the velocity ratios
multiplied?
1. When the currents are weak and
variable only
2. Only in inland rivers
3.
When the currents are strong
and stable only
4.
Always
42
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