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MANAGEMENT – DECK REPUBLIC OF THE PHILIPPINES DEPARTMENT OF TRANSPORTATION MARITIME INDUSTRY AUTHORITY STCW OFFICE GUIDE QUESTIONNAIRES for seafarers The Annual Publication of Database of Questionnaires is mandated in Republic Act 10635 or the Act Establishing the Maritime Industry Authority (MARINA) as the Single Maritime Administration Responsible for the Implementation and Enforcement of the 1978 International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978, as amended and International Agreements or Covenants related thereto and its Implementing Rules and Regulations. These sample questions have been reviewed and validated by our respective Board of Examiners which may serve as a guide for the review of aspiring Marine Deck and Engineering Officers, towards the successful completion of the Theoretical Examination. The following sample questions do not reflect the actual set of database of questions given during the theoretical examination. Examinees are encouraged to study the contained sample questions and probable answers as they are intended to give an indication of the format and difficulty level of the theoretical examination. You may access these guide questionnaires with your smart gadgets anywhere and anytime at your convenience. Please consider the environment before printing. Thank you. A Publication of the MARINA STCW Office MANAGEMENT – DECK FUNCTION 1 – Competence 3 1. How many points are there in a compass card? 2. What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism? 3. A relative bearing is always measured from __________. 4. A sidereal day is shorter than a solar day. This difference is due to _______. 5. A single vertical magnet placed underneath the compass in the binnacle is used to compensate for __________. 6. A system of reservoirs and connecting tubes in a gyro compass is called a __________. 7. A vessel heading NNW is on a course of __________. 8. A vessel is heading magnetic northwest and its magnetic compass reads a heading of 318 deg. What action should be taken to remove this error dutring compass adjustment? 9. As a vessel changes course to starboard, the compass card in a magnetic compass __________. 10. At the magnetic equator there is no induced magnetism in the vertical soft iron because __________. 11. At the master gyrocompass, the compass card is attached to the __________. 12. Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism. These correctors are the __________. 13. Besides variation, what does the compass rose on a nautical chart also indicates? 14. Compass deviation is caused by __________. MANAGEMENT – DECK 15. Compass error is equal to the __________. 16. Deviation changes with a change in __________. 17. Deviation is the angle between the __________. 18. Deviation which is maximum on intercardinal compass headings may be removed by the __________. 19. Every field of magnet contains something which is called _______. 20. Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are __________. 21. Heeling error is defined as the change of deviation for a heel of __________. 22. How is the annual rate of change for magnetic variation shown on a pilot chart? 23. How many degrees are there on a compass card? 24. If a magnetic compass is not affected by any magnetic field other than the Earths, which statement is TRUE? 25. If a ship is proceeding towards the magnetic equator, the uncorrected deviation due to permanent magnetism __________. 26. If the compass heading and the magnetic heading are the same then __________. 27. If the gyrocompass error is east, what describes the error and the correction to be made to gyrocompass headings to obtain true headings? 28. If the magnetic heading is greater than the compass heading, the deviation is __________. 29. Indications of the master gyrocompass are sent to remote repeaters by the _______ 30. Isogonic lines are lines on a chart and what does it indicates? MANAGEMENT – DECK 31. It is a coefficient used to identify the semicircular deviation which is proportional to the cosine of the compass heading? 32. It is a semi circular deviation which is proportional to the cosine twice of the compass heading. 33. Magnetic compass deviation __________. 34. Magnetic heading differs from compass heading by __________. 35. Magnetic variation changes with a change in __________. 36. Magnetism which is present only when the material is under the influence of an external field is called __________. 37. Magnets are placed in horizontal trays in the compass binnacle to compensate for the __________. 38. On an isomagnetic chart, what is the line of zero variation? 39. Permanent magnetism is caused by __________. 40. Quadrantal error in a gyrocompass has its GREATEST effect __________. 41. The compass deviation changes as the vessel changes __________. 42. The compass heading of a vessel differs from the true heading by __________. 43. The compass rose on a nautical chart indicates both variation and __________. 44. The difference in degrees between true north and magnetic north is called __________. 45. The directive force of a gyrocompass __________. 46. The error in a magnetic compass caused by the vessel's magnetism is called _______. 47. The Flinders bar on a magnetic compass compensates for the __________. MANAGEMENT – DECK 48. The greatest directive force is exerted on the magnetic compass when the _______. 49. The gyro compass is affected by three natural errors. One of these is caused when the ship rolls and pitches wherein the gyro is subjected to athwartship and fore-and-aft acceleration, and is called _______? 50. The gyro error introduce by ship's forward motion along its tracks also known as _______. 51. The gyrocompass error resulting from your vessel's movement in OTHER than an east-west direction is called _______. 52. The heading of a vessel is indicated by what part of the compass? 53. The horizontal angle between the magnetic meridian and the north-south line of the magnetic compass is __________. 54. The line connecting the points of the earth's surface where there is no dip is the __________. 55. The lubber's line on a magnetic compass indicates __________. 56. The magnetic compass error which changes with the geographical location of your vessel is called _______ . 57. The magnetic compass magnets are acted on by the horizontal component of the Earth's total magnetic force. This magnetic force is GREATEST at the _______. 58. The most accurate method of determining gyrocompass error while underway is by __________. 59. The permanent magnetism of a vessel may change in strength due to __________. 60. The points on the earth's surface where the magnetic dip is 90° are __________. 61. The principal purpose of magnetic compass adjustment is to __________. MANAGEMENT – DECK 62. The purpose of the soft iron spheres mounted on arms on the binnacle is to compensate for __________. 63. The spin axis of a gyroscope tends to remain fixed in space in the direction in which it is started. How does this gyroscope become north seeking so that it can be used as a compass? 64. The standard magnetic compass heading differs from the true heading by __________. 65. The total magnetic effects which cause deviation of a vessels compass can be broken down into a series of components which are referred to as __________. 66. The vertical angle between the horizontal and the magnetic line of force is the __________. 67. The vertical component of the Earth's magnetic field causes induced magnetism in vertical soft iron. This changes with latitude. What corrects for this coefficient of the deviation? 68. To center a compass bowl in its binnacle, you should have the ship on an even keel, heading north or south, and adjust the screws until __________. 69. To find a magnetic compass course from a true course you must apply __________. 70. True heading differs from magnetic heading by __________. 71. Variation in a compass is caused by __________. 72. What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism? 73. What aspect where Magnetic variation changes? 74. What caused Variation in a compass? 75. What coefficient is proportional to the sine of the compass heading? 76. What do you call those Lines on a chart which connect points of equal magnetic variation? MANAGEMENT – DECK 77. What does the agonic line on an isomagnetic chart indicates? 78. What happens to the compass card in a magnetic compass when a vessel changes course to starboard? 79. What indicates in the agonic line on an isomagnetic chart? 80. What is an advantage of the magnetic compass aboard vessels? 81. What is an error in a gyrocompass caused by rapid changes in course, speed and latitude causing deviation before the gyro can adjust itself? 82. What is called as the gyrocompass error resulting from your vessels movement in OTHER than an eastwest direction? 83. What is the basic principle of the magnetic compass? 84. What is the cause of variation which affects the directive force of a magnetic compass of a ship? 85. What is the compass error of a magnetic compass that has no deviation? 86. What is the most accurate method of determining gyrocompass error while underway? 87. What lines are indicated on a chart by an Isogonic lines? 88. What lines on a chart which connect points of equal magnetic variation are called? 89. What should be done when a magnetic compass is not in use for a prolonged period of time? 90. What then if the compass heading and the magnetic heading are the same? 91. What would happen if the compass heading and the magnetic heading are the same? 92.
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