Nav 1 Prelim (80 Items)

80 Questions

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Nav 1 Prelim (80 Items)

Questions and Answers
  • 1. 
    Navigation in which the position of the ship is determined from the direction and amount of progress from the last known position is called.
    • A. 

      Piloting

    • B. 

      Dead reckoning

    • C. 

      Electronic navigation

    • D. 

      Celestial navigation

  • 2. 
    Navigation in which the position of the ship is determined from the direction and amount of progress from the last known position is called.
    • A. 

      Piloting

    • B. 

      Dead reckoning

    • C. 

      Electronic navigation

    • D. 

      Celestial navigation

  • 3. 
    The method of determining the ship's position by the aid of celestial observation of celestial bodies using a sextant is called
    • A. 

      Piloting

    • B. 

      Dead reckoning

    • C. 

      Electronic navigation

    • D. 

      Celestial navigation

  • 4. 
    The method of determining the ship's position by the aid of celestial observation of celestial bodies using a sextant is called
    • A. 

      Piloting

    • B. 

      Dead reckoning

    • C. 

      Electronic navigation

    • D. 

      Celestial navigation

  • 5. 
    Which of the following is the angle of inclination of the earth
    • A. 

      23 degrees 27 minutes north or south

    • B. 

      23 degrees 37 minutes east or west

    • C. 

      27 degrees 23 minutes north or south

    • D. 

      27 degrees 23 minutes east or west

  • 6. 
    Which of the following is the angle of inclination of the earth
    • A. 

      23 degrees 27 minutes north or south

    • B. 

      23 degrees 37 minutes east or west

    • C. 

      27 degrees 23 minutes north or south

    • D. 

      27 degrees 23 minutes east or west

  • 7. 
    A semi great circle on the earth's surface, which runs between the two geogaphical poles, and passes throught an arbitrary point in greenwich is called
    • A. 

      Meridian

    • B. 

      Prime meridian

    • C. 

      Both a and b

    • D. 

      Neither a nor b

  • 8. 
    A semi great circle on the earth's surface, which runs between the two geogaphical poles, and passes throught an arbitrary point in greenwich is called
    • A. 

      Meridian

    • B. 

      Prime meridian

    • C. 

      Both a and b

    • D. 

      Neither a nor b

  • 9. 
    An essential form of piloting with the aid of electronic equipments with a high range of accuracy is called
    • A. 

      Piloting

    • B. 

      Dead reckoning

    • C. 

      Electronic navigation

    • D. 

      Celestial navigation

  • 10. 
    An essential form of piloting with the aid of electronic equipments with a high range of accuracy is called
    • A. 

      Piloting

    • B. 

      Dead reckoning

    • C. 

      Electronic navigation

    • D. 

      Celestial navigation

  • 11. 
    The angular distance of any point north or south of the equator is called
    • A. 

      Latitude

    • B. 

      Longitude

    • C. 

      Meridian

    • D. 

      Both a and b

  • 12. 
    The angular distance of any point north or south of the equator is called
    • A. 

      Latitude

    • B. 

      Longitude

    • C. 

      Meridian

    • D. 

      Both a and b

  • 13. 
    A circle that passes through the center of the sphere and cuts the sphere exactly in half is called
    • A. 

      Small circle

    • B. 

      Great circle

    • C. 

      Meridian

    • D. 

      Star circle

  • 14. 
    A circle that passes through the center of the sphere and cuts the sphere exactly in half is called
    • A. 

      Small circle

    • B. 

      Great circle

    • C. 

      Meridian

    • D. 

      Star circle

  • 15. 
    All of these are obsevable celestial bodies except
    • A. 

      Sun

    • B. 

      Rocks

    • C. 

      Stars

    • D. 

      Planets

  • 16. 
    All of these are obsevable celestial bodies except
    • A. 

      Sun

    • B. 

      Rocks

    • C. 

      Stars

    • D. 

      Planets

  • 17. 
    What bearing is relative to true north
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Magnetic bearing

    • D. 

      Relative bearing

  • 18. 
    What bearing is relative to true north
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Magnetic bearing

    • D. 

      Relative bearing

  • 19. 
    What is the circumfeence of the earth at the poles in miles
    • A. 

      21,550 miles

    • B. 

      21,554 miles

    • C. 

      21,620 miles

    • D. 

      21,626 miles

  • 20. 
    What is the circumfeence of the earth at the poles in miles
    • A. 

      21,550 miles

    • B. 

      21,554 miles

    • C. 

      21,620 miles

    • D. 

      21,626 miles

  • 21. 
    Which of the following is the diameter of the earth at the equator in miles
    • A. 

      6,860 miles

    • B. 

      6,861 miles

    • C. 

      6,880 miles

    • D. 

      6,884 miles

  • 22. 
    Which of the following is the diameter of the earth at the equator in miles
    • A. 

      6,860 miles

    • B. 

      6,861 miles

    • C. 

      6,880 miles

    • D. 

      6,884 miles

  • 23. 
    What is the equivalent of 1 statute mile in feet
    • A. 

      5,280 feet

    • B. 

      5,276 feet

    • C. 

      6,076 feet

    • D. 

      6,676 feet

  • 24. 
    What is the equivalent of 1 statute mile in feet
    • A. 

      5,280 feet

    • B. 

      5,276 feet

    • C. 

      6,076 feet

    • D. 

      6,676 feet

  • 25. 
    What bearing is relative to compass north
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Magnetic bearing

    • D. 

      Relative bearing

  • 26. 
    What bearing is relative to compass north
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Magnetic bearing

    • D. 

      Relative bearing

  • 27. 
    What is called to bearing that is measured from the ship's bow from  degrees to 180 degrees port or starboard
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Magnetic bearing

    • D. 

      Relative bearing

  • 28. 
    What is called to bearing that is measured from the ship's bow from  degrees to 180 degrees port or starboard
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Magnetic bearing

    • D. 

      Relative bearing

  • 29. 
    What type of time is considered as the standard time of the sea
    • A. 

      Local mean time (LMT)

    • B. 

      Greenwich mean time (GMT)

    • C. 

      Zone time (ZT)

    • D. 

      Daily savings time (DST)

  • 30. 
    What type of time is considered as the standard time of the sea
    • A. 

      Local mean time (LMT)

    • B. 

      Greenwich mean time (GMT)

    • C. 

      Zone time (ZT)

    • D. 

      Daily savings time (DST)

  • 31. 
    What part of a compass is composed of light magnetic material graduated in points
    • A. 

      Compass card

    • B. 

      Lubber's line

    • C. 

      Gimbals

    • D. 

      Binnacle

  • 32. 
    What part of a compass is composed of light magnetic material graduated in points
    • A. 

      Compass card

    • B. 

      Lubber's line

    • C. 

      Gimbals

    • D. 

      Binnacle

  • 33. 
    What part of a compass is placed to represents the bow of the ship
    • A. 

      Compass card

    • B. 

      Lubber's line

    • C. 

      Gimbals

    • D. 

      Binnacle

  • 34. 
    What part of a compass is placed to represents the bow of the ship
    • A. 

      Compass card

    • B. 

      Lubber's line

    • C. 

      Gimbals

    • D. 

      Binnacle

  • 35. 
    What type of time uses the mean sun as the celestial reference point
    • A. 

      Local mean time (LMT)

    • B. 

      Greenwich mean time (GMT)

    • C. 

      Zone time (ZT)

    • D. 

      Daily savings time (DST)

  • 36. 
    What type of time uses the mean sun as the celestial reference point
    • A. 

      Local mean time (LMT)

    • B. 

      Greenwich mean time (GMT)

    • C. 

      Zone time (ZT)

    • D. 

      Daily savings time (DST)

  • 37. 
    Large scale charts used in local navigation and anchorage in harbors and smaller water ways, where the scale is less than 1:50,000 is called
    • A. 

      Sailing chart

    • B. 

      General chart

    • C. 

      Coast chart

    • D. 

      Harbor chart

  • 38. 
    Large scale charts used in local navigation and anchorage in harbors and smaller water ways, where the scale is less than 1:50,000 is called
    • A. 

      Sailing chart

    • B. 

      General chart

    • C. 

      Coast chart

    • D. 

      Harbor chart

  • 39. 
    A conformal cylindrical map projection in which the surface of the sphere such as the earth is conceived as developed on a cylinder is called
    • A. 

      Mercator projection

    • B. 

      Polyconic projection

    • C. 

      Gnomonic projection

    • D. 

      Lambert projection

  • 40. 
    A conformal cylindrical map projection in which the surface of the sphere such as the earth is conceived as developed on a cylinder is called
    • A. 

      Mercator projection

    • B. 

      Polyconic projection

    • C. 

      Gnomonic projection

    • D. 

      Lambert projection

  • 41. 
    Charts mostly on a scale of approximate 1:600,000 to 1:1,200,000 that shows the approaches to a large extent of coast is called
    • A. 

      Sailing chart

    • B. 

      General chart

    • C. 

      Coast chart

    • D. 

      Harbor chart

  • 42. 
    Charts mostly on a scale of approximate 1:600,000 to 1:1,200,000 that shows the approaches to a large extent of coast is called
    • A. 

      Sailing chart

    • B. 

      General chart

    • C. 

      Coast chart

    • D. 

      Harbor chart

  • 43. 
    A map projection use for a chart is called
    • A. 

      Chart datum

    • B. 

      Chart projection

    • C. 

      Chart reading

    • D. 

      Chart compass

  • 44. 
    A map projection use for a chart is called
    • A. 

      Chart datum

    • B. 

      Chart projection

    • C. 

      Chart reading

    • D. 

      Chart compass

  • 45. 
    A chart giving information on ocean currents, weather and other information for safe navigation is called
    • A. 

      Sailing chart

    • B. 

      Pilot chart

    • C. 

      General chart

    • D. 

      Coast chart

  • 46. 
    A chart giving information on ocean currents, weather and other information for safe navigation is called
    • A. 

      Sailing chart

    • B. 

      Pilot chart

    • C. 

      General chart

    • D. 

      Coast chart

  • 47. 
    Weekly publications containing information of changes which require correction of existing charts and books of sailing directions is called
    • A. 

      Chart catalogue

    • B. 

      Chart compass

    • C. 

      Chart projection

    • D. 

      Notice to mariners

  • 48. 
    Weekly publications containing information of changes which require correction of existing charts and books of sailing directions is called
    • A. 

      Chart catalogue

    • B. 

      Chart compass

    • C. 

      Chart projection

    • D. 

      Notice to mariners

  • 49. 
    An avoidable extension of charted areas due to impossibility of accurately reproducing a spherical surface on a plane surface is called
    • A. 

      Chart border

    • B. 

      Chart projection

    • C. 

      Chart reading

    • D. 

      Chart distortion

  • 50. 
    An avoidable extension of charted areas due to impossibility of accurately reproducing a spherical surface on a plane surface is called
    • A. 

      Chart border

    • B. 

      Chart projection

    • C. 

      Chart reading

    • D. 

      Chart distortion

  • 51. 
    All of the following are elements of a successful navigator except
    • A. 

      Knowledge

    • B. 

      Tactless

    • C. 

      Alertness

    • D. 

      Judgement

  • 52. 
    All of the following are elements of a successful navigator except
    • A. 

      Knowledge

    • B. 

      Tactless

    • C. 

      Alertness

    • D. 

      Judgement

  • 53. 
    Which of the following is the oldest speed measuring device
    • A. 

      Dutchman's log

    • B. 

      Chip log

    • C. 

      Pitot static log

    • D. 

      Impeller log

  • 54. 
    Which of the following is the oldest speed measuring device
    • A. 

      Dutchman's log

    • B. 

      Chip log

    • C. 

      Pitot static log

    • D. 

      Impeller log

  • 55. 
    What do you call the unit of speed
    • A. 

      Distance

    • B. 

      Speed

    • C. 

      Time

    • D. 

      Knot

  • 56. 
    What do you call the unit of speed
    • A. 

      Distance

    • B. 

      Speed

    • C. 

      Time

    • D. 

      Knot

  • 57. 
    The type of log that utilizes a rodmeter is called
    • A. 

      Dutchman's log

    • B. 

      Chip log

    • C. 

      Pitot static log

    • D. 

      Impeller log

  • 58. 
    The type of log that utilizes a rodmeter is called
    • A. 

      Dutchman's log

    • B. 

      Chip log

    • C. 

      Pitot static log

    • D. 

      Impeller log

  • 59. 
    What term is used to call the lenght travelled by as ship
    • A. 

      Distance

    • B. 

      Speed

    • C. 

      Time

    • D. 

      Knot

  • 60. 
    What term is used to call the lenght travelled by as ship
    • A. 

      Distance

    • B. 

      Speed

    • C. 

      Time

    • D. 

      Knot

  • 61. 
    What is called to the velocity if a ship through the water
    • A. 

      Distance

    • B. 

      Speed

    • C. 

      Time

    • D. 

      Knot

  • 62. 
    What is called to the velocity if a ship through the water
    • A. 

      Distance

    • B. 

      Speed

    • C. 

      Time

    • D. 

      Knot

  • 63. 
    Chart intended for use in coastwise navigation with a scale of 1:150,000 to 1:600,00 is called
    • A. 

      Harbor chart

    • B. 

      Coast chart

    • C. 

      Pilot chart

    • D. 

      General chart

  • 64. 
    Chart intended for use in coastwise navigation with a scale of 1:150,000 to 1:600,00 is called
    • A. 

      Harbor chart

    • B. 

      Coast chart

    • C. 

      Pilot chart

    • D. 

      General chart

  • 65. 
    Chart intended for usse in near shores as in entering or leaving harbors and bays with a scale from 1:50,000 to 1:150,000 is called
    • A. 

      Harbor chart

    • B. 

      Sailing chart

    • C. 

      Coast chart

    • D. 

      Harbor chart

  • 66. 
    Chart intended for usse in near shores as in entering or leaving harbors and bays with a scale from 1:50,000 to 1:150,000 is called
    • A. 

      Harbor chart

    • B. 

      Sailing chart

    • C. 

      Coast chart

    • D. 

      Harbor chart

  • 67. 
    What is used in measuring distance in the chart
    • A. 

      Longitude scale

    • B. 

      Compass divider

    • C. 

      Compass rose

    • D. 

      Latitude scale

  • 68. 
    What is used in measuring distance in the chart
    • A. 

      Longitude scale

    • B. 

      Compass divider

    • C. 

      Compass rose

    • D. 

      Latitude scale

  • 69. 
    Kind of projection which the surface of the sphere such as the earth is conceived as developed on a cone which intersects the sphere at two standard parallels
    • A. 

      Polyconic projection

    • B. 

      Gnomonic projection

    • C. 

      Mercator projection

    • D. 

      Lambert projection

  • 70. 
    Kind of projection which the surface of the sphere such as the earth is conceived as developed on a cone which intersects the sphere at two standard parallels
    • A. 

      Polyconic projection

    • B. 

      Gnomonic projection

    • C. 

      Mercator projection

    • D. 

      Lambert projection

  • 71. 
    Reciting the points or quarter points of the compass in correct order from north to north is called
    • A. 

      Compass rose

    • B. 

      Compass north

    • C. 

      Boxing the compass

    • D. 

      True north

  • 72. 
    Reciting the points or quarter points of the compass in correct order from north to north is called
    • A. 

      Compass rose

    • B. 

      Compass north

    • C. 

      Boxing the compass

    • D. 

      True north

  • 73. 
    What do you call the compass that engrave on the chart
    • A. 

      Compass north

    • B. 

      Compass heading

    • C. 

      Relative compass

    • D. 

      Compass rose

  • 74. 
    What do you call the compass that engrave on the chart
    • A. 

      Compass north

    • B. 

      Compass heading

    • C. 

      Relative compass

    • D. 

      Compass rose

  • 75. 
    What is the direction of a straight line from a point or observer to the object sighted 
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Relative bearing

    • D. 

      Bearing

  • 76. 
    What is the direction of a straight line from a point or observer to the object sighted 
    • A. 

      Compass bearing

    • B. 

      True bearing

    • C. 

      Relative bearing

    • D. 

      Bearing

  • 77. 
    The most valuable instruments in navigation as it direct the course of the ship
    • A. 

      Compass

    • B. 

      Compassbearing

    • C. 

      Magnetic compass

    • D. 

      Gyro compass

  • 78. 
    The most valuable instruments in navigation as it direct the course of the ship
    • A. 

      Compass

    • B. 

      Compassbearing

    • C. 

      Magnetic compass

    • D. 

      Gyro compass

  • 79. 
    What is the compass usually located below decks near the center of motion and is connected electrically with repeaters.
    • A. 

      Magnetic compass

    • B. 

      Repeater compass

    • C. 

      Gyro compass

    • D. 

      Master gyro compass

  • 80. 
    What is the compass usually located below decks near the center of motion and is connected electrically with repeaters.
    • A. 

      Magnetic compass

    • B. 

      Repeater compass

    • C. 

      Gyro compass

    • D. 

      Master gyro compass