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7-14. What is the tidal day?
7-22.
7-15.
1. One high and one low tide
2. Two high and two low tides
3. Two high and one low tide
4. One high and two low tides
What is a tidal cycle?
1. One high and one low tide
2. Two high and two low tides
3. Two high and one low tide
4. One high and two low tides
Approximately how many hours elapse
between successive high tides?
7-23.
7-16.
1.
6
2. 12
3. 18
4. 24
IN ANSWERING QUESTIONS 7-17 THROUGH 7-20,
SELECT FROM COLUMN B THE DEFINITION THAT
MATCHES THE WATER LEVEL IN COLUMN A.
RESPONSES ARE USED ONLY ONCE.
WATER
A. LEVEL
B. DEFINITION
7-17.
High water
1. Minimum height
of the water
7-18.
Low water
resulting from
an outgoing tide
7-19.
Mean high
water
2. Average height of
all low-tide
7-20.
Mean low
levels over
water
19 years
3. Maximum height of
water resulting
from a rising
tide
4. Average height of
all high-tide
levels over
19 years
7-21.
Which of the following terms
identifies the total rise from low
water to high water?
1.
Rip
2. Range
3. Stand
4. Spring
7-24.
7-25.
7-26.
Which of the following terms
identifies the period during high
and low water when the water level
remains steady?
1. Range
2. Stand
3. Mean sea level
4. Reference plane
What does a depth of water figure
on
1.
2.
3.
4.
a chart indicate?
The average depth soundings
taken at various high water
times
The average depth soundings
taken at various low water
times
The greatest depth soundings
ever recorded at low water
The greatest depth soundings
ever recorded at high water
Spring tides occur when the Sun,
Earth, and Moon are in line.
1. True
2.
False
How do tides react during spring
tides?
1. Higher than normal low tides
and higher than normal high
tides
2. Higher than normal high tides
and lower than normal low tides
3. Lower than normal low tides and
lower than normal high tides
4. Higher than normal low tides
and lower than normal high
tides
What type of tide is produced when
the Moon is in its first and last
quarter?
1. Spring
2. Solar
3. Neap
4.
Rip
IN ANSWERING QUESTION 7-27 THROUGH 7-29,
REFER TO FIGURE 7-2 IN YOUR TEXT.
7-27.
The depth of water is equal to the
algebraic sum of the chart depth
and the height of the tide.
1. True
2. False
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