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NAV1 Midterm Quiz 4 WK 4 2022 2023 1

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University of Cebu–LM
Education Towards Global Competitiveness

COLLEGE OF MARITIME EDUCATION

NAV. 1

MIDTERM

WEEK 4

NAME:_____________________ Date:__________

QUIZ 4:

1. What can be defined as the alternate rise and fall of the ocean water?
a. Tides b. Low tides
c. High tides d. Flood tides

2. Tides can be defined as the alternate rise and fall of the ocean water. Which is NOT
a cause of tide?
a.The gravitational force exerted on Earth by the Sun
b.The gravitational force exerted on Earth by the Moon
c. Rotation of the Earth
d. Rotation of the Planet
3. What type of tide where there will be a rise in sea level over a period of several
hours?
a. Flood tide b. High tide
c. Ebb tide d. Low tide
4. What type of tide where the water reaches its maximum level?
a. Flood tide b. High tide
c. Ebb tide d. Low tide
5. What type of tide where sea level keeps receding over several hours?
a. Flood tide b. High tide
c. Ebb tide d. Low tide
6.  What is that elevation of the highest predicted astronomical tide expected to occur
at a specific tide station over the time period of 40 years?
a. Highest Astronomical Tide b. Mean Higher High Water
c. Mean High Water d. Mean Tide Level
7. What is that average of all the low water heights observed over the National Tidal
Datum Epoch?

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a. Mean Lower Low Water b. Mean Low Water


c. Mean Diurnal Low Water Inequality d. Greenwich Low Water Interval

8. Refer to the illustration below. Which of the following best describes item no.5?

a. Height of Tide
b. Drying Height
c. Observed Depth
d. Charted Depth (sounding)

9. What is the meaning of item no.6?

a. Height of Tide
b. Drying Height
c. Observed Depth
d. Charted Depth (sounding)

10. What is the meaning of item no.7?

a. Height of Tide
b. Drying Height
c. Observed Depth
d. Charted Depth (sounding)

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7
6

Prepared by: SCORE:____________

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________________________ Grade:_____________
Instructor

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