OUPV Navigation General Study Guide
(Questions and 100% Correct Answers) |
Brand New Edition
1. The term "Slack Water" during a tidal change means?
A Range of tide
B Plane of tide
C Little or no movement of water
D Reversing of the tide - ANSWER C Little or no movement of water
2. The term "Tide" means ":
A Salinity content of the water
B Mixing of salt and fresh waters
C Horizontal movement of the water
D Vertical movement of the water - ANSWER D Vertical movement of water
3. When plotting a voyage you should:
A Rely on a buoy to be on station as charted
B Never rely on a floating buoy to maintain its exact position
C Rely on a buoy to show proper light characteristics
D Assume a wreck buoy is directly over the wreck - ANSWER B Never rely
on a floating buoy to maintain its exact position
,4. The difference in height between low and high tide is referred to as the :
A Period of table
B Spring tide
C Range of tide
D None of the above - ANSWER C Range of tide
5. From seaward the IALA Region B red and green horizontally-banded buoys
refer to:
A Preferred channels
B Channels for vessels constrained by draft
C General anchorage areas
D None of the above - ANSWER A Preferred channels
6. Determining the heights of land features on most charts unless otherwise
stated the "reference datum" is :
A Mean low water
B Mean high higher water
C Mean high water
D Mean sea water - ANSWER C Mean high water
7. Red or green lights may appear on :
,A Vertically striped red and white buoys
B Horizontally banded buoys
C Yellow buoys
D Orange buoys - ANSWER B Horizontally banded buoys
8. The depth of the water on a chart is the:
A Vertical distance from the chart sounding datum to the ocean bottom
B Vertical distance from the chart sounding datum to the bottom, plus the
height of the tide
C Average height of water over a specified period of time
D None of the above - ANSWER A Vertical distance from the chart sounding
datum to the ocean bottom
9. A North Hemisphere wind which shifts in a counter clockwise motion is
called:
A Pressure wind
B Coriolis wind
C Veering wind
D Backing wind - ANSWER D Backing wind
10.A vessel's position acquired by using at least three or more bearings are
called a:
A Dead-reckoning position
B Fix
, C Estimated position
D Running fix - ANSWER B Fix
11.Mean lower low water (MLLW) is the reference plane used for :
A Sounding on the U.S. east and west coasts
B All vertical guld measurements
C Heights above water for lights, mountains, etc
D Soundings on the U.S. east coast only - ANSWER A Sound on the U.S. east
and west coasts
12.When entering a channel from the sea and decide to check your compass
heading you steer on a pair of range lights and find the upper light is in line
with the lower light you should :
A Come left
B Come right
C Maintain your current course
D Wait until the lights are no longer in a vertical line - ANSWER C Maintain
your current course
13.You observe a buoy mark having green and red horizontal bands it will have
a light characteristic of:
A Interrupted quick flashing
B Morse (A)
C Quick flashing
(Questions and 100% Correct Answers) |
Brand New Edition
1. The term "Slack Water" during a tidal change means?
A Range of tide
B Plane of tide
C Little or no movement of water
D Reversing of the tide - ANSWER C Little or no movement of water
2. The term "Tide" means ":
A Salinity content of the water
B Mixing of salt and fresh waters
C Horizontal movement of the water
D Vertical movement of the water - ANSWER D Vertical movement of water
3. When plotting a voyage you should:
A Rely on a buoy to be on station as charted
B Never rely on a floating buoy to maintain its exact position
C Rely on a buoy to show proper light characteristics
D Assume a wreck buoy is directly over the wreck - ANSWER B Never rely
on a floating buoy to maintain its exact position
,4. The difference in height between low and high tide is referred to as the :
A Period of table
B Spring tide
C Range of tide
D None of the above - ANSWER C Range of tide
5. From seaward the IALA Region B red and green horizontally-banded buoys
refer to:
A Preferred channels
B Channels for vessels constrained by draft
C General anchorage areas
D None of the above - ANSWER A Preferred channels
6. Determining the heights of land features on most charts unless otherwise
stated the "reference datum" is :
A Mean low water
B Mean high higher water
C Mean high water
D Mean sea water - ANSWER C Mean high water
7. Red or green lights may appear on :
,A Vertically striped red and white buoys
B Horizontally banded buoys
C Yellow buoys
D Orange buoys - ANSWER B Horizontally banded buoys
8. The depth of the water on a chart is the:
A Vertical distance from the chart sounding datum to the ocean bottom
B Vertical distance from the chart sounding datum to the bottom, plus the
height of the tide
C Average height of water over a specified period of time
D None of the above - ANSWER A Vertical distance from the chart sounding
datum to the ocean bottom
9. A North Hemisphere wind which shifts in a counter clockwise motion is
called:
A Pressure wind
B Coriolis wind
C Veering wind
D Backing wind - ANSWER D Backing wind
10.A vessel's position acquired by using at least three or more bearings are
called a:
A Dead-reckoning position
B Fix
, C Estimated position
D Running fix - ANSWER B Fix
11.Mean lower low water (MLLW) is the reference plane used for :
A Sounding on the U.S. east and west coasts
B All vertical guld measurements
C Heights above water for lights, mountains, etc
D Soundings on the U.S. east coast only - ANSWER A Sound on the U.S. east
and west coasts
12.When entering a channel from the sea and decide to check your compass
heading you steer on a pair of range lights and find the upper light is in line
with the lower light you should :
A Come left
B Come right
C Maintain your current course
D Wait until the lights are no longer in a vertical line - ANSWER C Maintain
your current course
13.You observe a buoy mark having green and red horizontal bands it will have
a light characteristic of:
A Interrupted quick flashing
B Morse (A)
C Quick flashing
