12npa 50
.gif "12npa 50 - Quiz")
prelim 122
- 1.
The light of an east cardinal mark signifies how many flashes in a groups
- A.
Uninterrupted
- B.
Three
- C.
Six
- D.
Nine
Correct Answer
B. Three -
- 2.
A light showing over a very narrow sector, forming a single leading light is called
- A.
Subsidiary light
- B.
Sector light
- C.
Direction light
- D.
Leading light
Correct Answer
C. Direction light -
- 3.
Which of the follwing countries belong to IALA region B
- A.
Australia
- B.
Europe
- C.
Africa
- D.
Japan
Correct Answer
D. Japan -
- 4.
Which of the following is the abbreviation for alternating light
- A.
Alt
- B.
Alter
- C.
Alt lt
- D.
Al lt
Correct Answer
A. Alt -
- 5.
Under the IALA A buoyage system, a buoy displaying a green light will be left in what direction
- A.
To port
- B.
To starboard
- C.
Both a and b
- D.
Neither a nor b
Correct Answer
B. To starboard -
- 6.
A natural or artificial mark used to assist a vessel in avoiding a particular hazard is called
- A.
Sea mark
- B.
Land mark
- C.
Night mark
- D.
Clearing mark
Correct Answer
D. Clearing mark -
- 7.
Which of the following are specially equipped vessels anchored at specific locations to serve as aids to navigation
- A.
Tugboats
- B.
Light sector
- C.
Light ships
- D.
Private aids
Correct Answer
C. Light ships -
- 8.
What does the smbols means
- A.
Light buoy
- B.
Position of light
- C.
Lighted offshore platform
- D.
Aeronautical light
Correct Answer
A. Light buoy -
- 9.
The light of a north cardinal mark signifies how many flashes
- A.
Uninterrupted
- B.
Three
- C.
Six
- D.
Nine
Correct Answer
A. Uninterrupted -
- 10.
Type of cardinal mark the color of which is black below yellow is called
- A.
North
- B.
South
- C.
West
- D.
East
Correct Answer
B. South -
- 11.
Which of the following is a light presenting different appearance, over various part of the horizon of interest to maritime navigation
- A.
Subsidiary light
- B.
Sector light
- C.
Direction light
- D.
Leading light
Correct Answer
B. Sector light -
- 12.
Characteristic of light wherein the total duration of light in a period is longer than the total duration of darkness is called
- A.
Fixed
- B.
Flashing
- C.
Occulting
- D.
Isophase
Correct Answer
C. Occulting -
- 13.
The color used for a special mark is
- A.
Black and yellow
- B.
Red ang black bands
- C.
Yellow
- D.
Red and white stripes
Correct Answer
C. Yellow -
- 14.
Which of the following is the color of the light displayed by a special mark
- A.
White
- B.
Red
- C.
Green
- D.
Yellow
Correct Answer
D. Yellow -
- 15.
If all these land marks are charted, which of them is less reliable
- A.
Buoy
- B.
Island
- C.
Light house
- D.
Mountain peak
Correct Answer
A. Buoy -
- 16.
Type of cardinal mark the color of which is black above yellow is called
- A.
North
- B.
South
- C.
West
- D.
East
Correct Answer
A. North -
- 17.
What type of mark when seen during daytime, is colored with red and black horizontal bands
- A.
Cardinal marks
- B.
Isolated danger mark
- C.
Safe water mark
- D.
Special mark
Correct Answer
B. Isolated danger mark -
- 18.
Characteristic of light wherein the total duration of light in a period is equal to the total duration of darkness is called
- A.
Fixed
- B.
Flashing
- C.
Occulting
- D.
Isophase
Correct Answer
D. Isophase -
- 19.
What does the symbol wks mean
- A.
Wreckage
- B.
Wreck always partially submerged
- C.
Sunken wreck
- D.
Wreck over which depth is known
Correct Answer
A. Wreckage -
- 20.
The light of a south cardinal mark signifies how many flashes in a group
- A.
Uninterrupted
- B.
Three
- C.
Six followed by 1 long flash
- D.
Nine
Correct Answer
C. Six followed by 1 long flash -
- 21.
The light of a special mark signifies how many flashes in a group
- A.
Single flash
- B.
Group of five flashes every 20 seconds
- C.
Three
- D.
Six
Correct Answer
B. Group of five flashes every 20 seconds -
- 22.
What does the symbol AERO mean
- A.
Light buoy
- B.
Position of light
- C.
Lighted offshore platform
- D.
Aeronautical ligt
Correct Answer
D. Aeronautical ligt -
- 23.
When will you rely on the position of floating aids to navigation
- A.
During daylight
- B.
During clam weather
- C.
When inside the harbor
- D.
When no fixed aid is avaiable
Correct Answer
D. When no fixed aid is avaiable -
- 24.
Which of the following is the abbreviation for fixed light
- A.
F
- B.
Fi
- C.
Fl
- D.
F x L
Correct Answer
A. F -
- 25.
Which of the following is the distance from the position abvoe the surface of the earth from the line of sight to the horizon
- A.
Geographic range
- B.
Horizon distance
- C.
Luminous range
- D.
Charted visibility
Correct Answer
B. Horizon distance -
- 26.
The light of a west cardinal mark signifies how many flashes in a group
- A.
Uninterrupted
- B.
Three
- C.
Six
- D.
Nine
Correct Answer
D. Nine -
- 27.
The light of an isolated danger mark signifies how many flashes in a group
- A.
Single flash
- B.
Two
- C.
Three
- D.
Six
Correct Answer
B. Two -
- 28.
Characteristic of light which displays continuously and steadily is called
- A.
Occulting
- B.
Flashing
- C.
Isophase
- D.
Fixed
Correct Answer
D. Fixed -
- 29.
What does the symbol mean
- A.
Light buoy
- B.
Aeronautical light
- C.
Position of light
- D.
Lighted offshore platform
Correct Answer
D. Lighted offshore platform -
- 30.
Type of mark whose apex points together is called
- A.
North
- B.
South
- C.
West
- D.
East
Correct Answer
C. West -
- 31.
It is a structure exhibiting a major light designed to serve as an aid to navigation is called
- A.
Beacon
- B.
Buoys
- C.
Lighthouse
- D.
Lighship
Correct Answer
C. Lighthouse -
- 32.
Conspicuous objects or characteristics fromation of land whose position is known and which aids the mariner in establishing his position is calle
- A.
Clearing mark
- B.
Landmark
- C.
Night mark
- D.
Sea mark
Correct Answer
B. Landmark -
- 33.
The diffused glow observed from the light below the horizon due to atmospheric scattering is called
- A.
Elevation
- B.
Look
- C.
Phase
- D.
Intensity
Correct Answer
A. Elevation -
- 34.
What does the symbol anch mean
- A.
Anchorage (area)
- B.
Anchorage (small vessel)
- C.
Anchorage (large vessel)
- D.
Anchorage prohibited
Correct Answer
C. Anchorage (large vessel) -
- 35.
Under IALA B buoyage system, a buoy displaying a red light will be left in what direction
- A.
To port
- B.
To starboard
- C.
Both a and b
- D.
Neither a nor b
Correct Answer
B. To starboard -
- 36.
Mark used in conjunction with the compass to indicate where the mariner may find the best navigable water is called
- A.
Cardinal mark
- B.
Isolated danger mark
- C.
Safe water mark
- D.
Special mark
Correct Answer
A. Cardinal mark -
- 37.
The maximum distance at which a light can be seen under atmospheric condition of the existing visibility is called
- A.
Geographic range
- B.
Luminous range
- C.
Nominal range
- D.
Two ranges
Correct Answer
B. Luminous range -
- 38.
Characteristic of light wherein the total duration of light in a period is shorter than the total duration of darkness is called
- A.
Fixed
- B.
Flashing
- C.
Occulting
- D.
Isophase
Correct Answer
B. Flashing -
- 39.
The following are the uses of cardinal marks except
- A.
Indicates the deepest water
- B.
Indicates a recreation zone
- C.
Indicates the safe side
- D.
Emphasized a bend
Correct Answer
B. Indicates a recreation zone -
- 40.
Type of mark erected on, or moored on or above, an isolated danger of limited extent is called
- A.
Cardinal mark
- B.
Isolated danger mark
- C.
Safe water mark
- D.
Special mark
Correct Answer
B. Isolated danger mark -
- 41.
The maximum distance at which a light can be seen when under the meteorological conditions of the prevailing visibility is called
- A.
Geographic range
- B.
Luminous range
- C.
Nominal range
- D.
Two ranges
Correct Answer
A. Geographic range -
- 42.
Time required for a light to go through a full set is called
- A.
Flashing
- B.
Period
- C.
Occulting
- D.
Light phase
Correct Answer
B. Period -
- 43.
What does the symbol mean
- A.
Anchorage (area)
- B.
Anchorage (small vessel)
- C.
Anchorage (large vessel)
- D.
Anchorage prohibited
Correct Answer
D. Anchorage prohibited -
- 44.
A type of mark wherein the colot is red and white vertical stripes is called
- A.
Cardinal mark
- B.
Isolated danger mark
- C.
Safe water mark
- D.
Special mark
Correct Answer
C. Safe water mark -
- 45.
Which of the following is a light placed on or near the support of the main light
- A.
Subsidiary light
- B.
Sector light
- C.
Direction light
- D.
Leading light
Correct Answer
A. Subsidiary light -
- 46.
The following are used of a special mark except
- A.
Traffic separation marks
- B.
Mid channel buoys
- C.
ODAS buoys
- D.
Spoil ground marks
Correct Answer
B. Mid channel buoys -
- 47.
Under IALA B buoyage sustem, a buoy displaying a green light will be left to which of the following
- A.
To port
- B.
To starboard
- C.
Both a and b
- D.
Neither a nor b
Correct Answer
A. To port -
- 48.
Mark used to indicate that there is navigable water all around the mark is called
- A.
Cardinal mark
- B.
Isolated danger mark
- C.
Safe water mark
- D.
Special mark
Correct Answer
C. Safe water mark -
- 49.
What does the symbol mean
- A.
Light buoy
- B.
Position of light
- C.
Lighted offshore platform
- D.
Aeronautical light
Correct Answer
B. Position of light -
- 50.
- A.
Landmark
- B.
Triangular beacon
- C.
Square beacon
- D.
Beacon
Correct Answer
A. Landmark -
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Aug 15, 2011Quiz Edited by
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Apr 19, 2011Quiz Created by
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