OPERATIONAL LEVEL – ENGINE 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 OPERATIONAL LEVEL – ENGINE FUNCTION 3 – Competence 8 1. For mild steel and general work, the correct angle of a drill point is _______ degrees. 2. What is the equivalent of 230°F to °C? 3. The jacket cooling temperature of the engine is 55.4 C, the equivalent to F is _____________. 4. Safety precautions for the operator of the milling machine should be aware. If proper precautions are taken, dangers can be avoided and_____. 5. Which of the wrenches listed practically eliminates the possibility of its slipping off while tightening a nut or bolt? 6. In Lathe machine, the gear between the driver and the follower gears in a simple train is known as a/ an intermediate gear or _____. 7. The drill size is marked on the______. 8. Most modern lathes for feed and thread lead are provided with_____. 9. Before using an all-purpose electric measuring instrument (multimeter) utilizing internal batteries to supply power for resistance measurements, you should FIRST____. 10. Knowing the construction and the operating action of the milling machine will lessen the chance of the machine from being_______. 11. To obtain a 1/2 inch per foot taper on an 18 inch work-piece, the tailstock of the lathe must be set over _____ 12. Which type of the file will produce a fine finish when draw filing? 13. The maximum speed (surface feet per minute) for a rough machining of a carbon steel material if a high-speed cutter is used in the operation of the modern milling machine onboard is _____________. 14. What is the correct hacksaw blade should be used in cutting angular iron and heavy pipe? OPERATIONAL LEVEL – ENGINE 15. Which of the following is the boiling point of water at sea level? 16. Which type of the file will produce a fine finish when draw filing? 17. Which of the following screwdrivers is designed to protect small screws from being over tightened? 18. A micrometer torque wrench has a correct torque value when reached ________. 19. In the event of power failure during cargo loading operations, the movement of an electric powered cargo winch will be stopped by_____. 20. When tightening the nozzle nut of fuel injector, which of the following tools is used? 21. Which of the listed tools should be used to remove a tapered roller bearing from a shaft? 22. A compound gage is used for measuring pressures both above and below __________. 23. In gas welding system, a hose with blue color indicates it contain _____________. 24. An inert gas used as shielded gas in MIG and TIG welding is_____. 25. When renewing sections of pipe in a hydraulic system, the nominal pipe size of the piping always indicates the ____ 26. Before measuring an unknown resistance with an ohmeter, you should_____. 27. Which of these spanners listed below is preferable to use? 28. Which of the listed punches can be properly used to free a tapered pin „frozen‟ in its hole? 29. Which of the nondestructive testing methods listed is most often used to accurately detect external defects in welded metals? OPERATIONAL LEVEL – ENGINE 30. Some heavy duty screwdrivers are made with a square shank to _____________. 31. Round split dies are usually adjustable to _____. 32. The type of tooth set on a hacksaw blade where every third tooth remains straight, while the other two are alternately set is known as _____. 33. What kind of tool should used to remove a ball bearing from the shaft of a motor? 34. A hacksaw blade with 14 teeth per inch should be used to cut _____. 35. A hacksaw blade will start a cut more easily if you _____. 36. Pipe threads are made with the use of __________. 37. The taper produced by a lathe taper attachment is determined by setting the _____ 38. Which part of the universal and plain type milling machine listed below can be found on both types? 39. Which of the following types of files will produce a fine finish when draw filing? 40. If you are cutting external threads by hand and you start the die at an angle, the threads will _____. 41. When cutting sheet metal too thin to be held in your hand while using a hand held hacksaw, the sheet metal should be placed between two _____. 42. In Lathe machine, what is the best thing to do to machine hard and irregular form of metal object to its designed shape? 43. What do you call an operation where one end of the product diameter is smaller than the other end? 44. A side from welding, the best material to use in bonding pipes carrying low temoerature liquids or fluids is _____________. OPERATIONAL LEVEL – ENGINE 45. What would be the main criteria in soldering two metal surfaces? 46. Which of the following metal material has the lowest cutting speed for an effective rough cutting operation if a high-speed cutter is to be used in the modern milling machine onboard? 47. Increasing the feed pressure on a drill as the drill point begins to break through the bottom of the work piece will cause the drill to ___________. 48. Failing to decrease the feed pressure on a drill as its point begins to break through the bottom of the work-piece will cause to drill to _____. 49. Which of the following is the property of a material that enables it to resist strain when stress is applied? 50. Which of the following listed composes sets of hand taps? 51. All portable electric tools should have a ground connection to prevent __________. 52. Which of the following commercially available gas fuel, when mixed with the proper ratio of oxygen, produces a metallurgically neutral flame? 53. Which of the metal materials uses the highest cutting speed for an effective rough cutting in a modern milling machine? 54. Which of the following items below is the hardest tool's tip that can endure the highest speed and have the smallest wear when used in the operation of a center lathe or electric driven shaper onboard? 55. If all the metals listed below are two inches in diameter which of those listed can be cut with the highest operating lathe speed? 56. Which of the following material below does a zinc anode protects? 57. It is the cheapest of the cast metals and can be easily cast into any sizes and forms. 58. What refers to the production of shaped parts from metal powder? 59. A file coated with oil and stowed away will _____. OPERATIONAL LEVEL – ENGINE 60. On a blend hole the tapping threads should be finished by using a __________. 61. For a safe, smooth and effective operation of a modern lathe machine onboard, which of the listed tools below should be attached in the tool post? 62. The type of force that tends to move toward the center is ______________. 63. Which among the cutting tool materials retains the lowest wear resistance when the tool bit is used in machining hard metal materials through the modern center lathe machine onboard? 64. Which among the materials listed below is used in the manufacture of cutting tools that retains hardness at the highest temperature? 65. The operation of machining a uniformly roughened or checked surface on round stock in a lathe is called_____. 66. A roughened checkered surfaced is machined by a lathe on round stock using a_____. 67. What shape or form of the metal material can the electric shaper onboard be used safely and effectively? 68. Cutting tools in a shaper can also be used in a ___________. 69. A lathe dog, fitted with a headless set screw, is known as a_____, 70. After using a pipe cutter to cut a piece of pipe, the inside edge of the pipe should be ____. 71. It is easier to start for a thread die if the end of the piece of material to be work/threaded is slightly _________. 72. When drilling hole in a piece of work chuked in a lathe you should mount the drill chuck in the_____. 73. Which of the following is widely used to supply power to pneumatically- operated hand tools? 74. In electric arc welding, what purpose does the electrode coating serve? OPERATIONAL LEVEL – ENGINE 75. The dead center of a lathe can be properly used only after the end of the work piece has been __________.