competence 2

76問 • 1ヶ月前

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1. Which of the following is a block having two sheaves of different diameters, placed in the same plane one above the other?

Block Fiddle

A chain bridle is used when towing astern because it ?

provides an effective catenary and absorbs shock due to its weight

3. Pedestal cranes have limit switches to restrict the movement of which function?

Slew travel limits

4. When required to work in an area where explosive gases may accumulate, you should use hand tools which are ?

nonferrous

5. How should you signal the crane operator to lower the boom and raise the load?

Extend arm with thumb pointing downward and flex fingers in and out.

6. Which of the following statements is/are TRUE regarding crane operations?

The crane operator and signalman must be familiar with hand signals.

7. In preparation for receiving chilled reefer cargo, the reefer space has been precooled for over twentyfour hours. Loading may begin when the space has been cooled to a temperature between

28°F (-2Â°C) and 40Â°F ( 4Â°C).

8. After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?

The filters and strainers should be check frequently

9. The midships house of your break bulk ship is constructed with an interior stair tower from the main deck to the bridge. Under what circumstances may the doors from each deck to the stair tower be kept open when underway?

They may be kept open if they can be automatically closed from the bridge.

10. How can the error be corrected when writing in the official log book?

Cross out the error with a single line and rewrite the entry correctly.

11. What is the curve representing vertical sections parallel to the central longitudinal vertical plane of the bow end of a ship?

Bow lines

12. Which of the following statement(s) is/are FALSE regarding a twin pedestal crane set?

The cranes are powered by independent internal combustion power units.

13. Which space(s) is(are) NOT exempt when measuring gross tonnage?

Cargo holds

14. If a leak is suspected in a tube heat exchanger, what would be the first to checked ?

Tightness of flared tubeend

15. Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE?

Stack weights should be less when using a solid bar lashing as compared to a wire lashing.

16. On a vessel proceeding from a very cold to a warm climate with a cargo of a nonhygroscopic nature in the holds, which is TRUE?

There is danger of heavy cargo sweat if outside air is introduced by ventilation.

17. A package contains nitric acid solution and is radioactive. The radiation level at the package surface is.36 millirems per hour. How should this package be labeled?

Radioactive l and corrosive

18. Who should be notified prior to starting up a crane?

The engine room

19. Certain cargoes must be segregated because of their

inherent characteristics

20. Which of the following is an outside area on a vessel's hull from bow to stern between certain waterlines to which special air, water, and grease-resisting paint is applied?

Boot topping

21. Routine maintenance on a Central Control Room hermitically sealed air conditioning unit should include

changing the air filter

22. Which of the following statements is TRUE regarding crane operations?

The crane operators and signalman must be familiar with the correct hand signals.

23. The best way to lift many small articles aboard your vessel is to use with a ?

pallet

24. Which cargoes require strips of common building lathe as dunnage in order to carry away heat generated by the cargo?

Refrigerated fruit that is ripening

25. Which is a black tarlike' composition largely asphalt containing such other ingredients as rosin, portland cement, slaked lime, petroleum that is used as a protective coating in ballast and trimming tanks, chain lockers, shaft alleys, etc.?

Bitumastic

26. Which of the following is a hatchway or opening in a deck provided with a set of steps or ladders leading from one deck level to another for the use of personnel?

Companionway

27. Before doing any work on a hydraulic system equipped with accumulators, you should

bleed of all stored energy from the accumulators

28. The most important rule for the safe operation of boiler is to

Maintain the proper water level at all times

29. You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. The center of pressure of the shores on the bulkhead should be located

approximately halfway up the bulkhead

30. You are requisitioning stores for your tank vessel. What type of matches are permitted aboard?

Safety

31. Why does many of the micrometers are equipped with a rachet stop at the end of the timble?

prevent the user from closing the tool with too much force

32. What should be done if localized scoring is discovered on the pump shaft sleeve during routine maintenance inspection?

Correct the cause of the scoring and install a new shaft sleeve

33. Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom?

Topping lift

34. Which is a piece of plate adjoining the hawse hole, to prevent the chafing of the hawser against the cheek of a ship's bow?

Bolster plate

35. To insure proper seating when closing a valve on a tank, what position should the valve be in?

closed, opened a half turn, and then closed again

36. A kind of non-metallic minerals that can withstand very high temperatures and unaffected by steam, petrol paraffin, fuel oil and lubricants, is the

Asbestos

37. When must the Master of a vessel log the position of load line marks in relation to the surface of the water in the Official Logbook?

Prior to getting underway.

38. The process of using zinc, a metal that is resistant to atmospheric corrosion when using as coating for protecting steel is called

Galvanizing

39. When fueling, it is important to ground the ship with regard to static electricity. Therefore, you must connect the?

bonding cable before the fuel hose has been connected

40. What is a smooth, tapered pin, usually of wood, used to open up the strands of a rope for splicing ?

fid

41. Which piece(s) of equipment is/are required to "twin-up" 30-ton pedestal cranes aboard a crane vessel?

Equalizing beam

42. What would be prima facie evidence of unseaworthiness?

Overloading

43. Which of the following states that the energy existing in a system as a result of relative forces of two or more objects?

Kinetic energy.

44. To avoid shock pressures in the fuel oil filling hoses while you are topping off tanks, the

loading rate should be decreased

45. The normal and safest way for a sailor to be lowered in a bosun's chair when descending vertically is ?

for that sailor to feed the hauling part through a bosun\'s chair hitch

46. Which is a roof like canopy of canvas suspended above a vessel's decks, bridges, etc., for protection against sun and weather?

Awning

48. Which action(s) are included in crane operations?

Luff, slew, and hoist operations

49. How should you signal the crane operator to move slowly?

Use one hand to give any motion signal, and place the other hand motionless in front of the hand giving the motion signal.

50. The driving forces of heat transfer by conduction is best described by the

temperature difference between hot and cold regions

51. When you are securing a steam - reciprocating pump, which valves should you leave open ?

Steam cylinder drain valve

52. Which can be prevented only by segregating two lots of cargo into separate holds?

Contamination of a food cargo by an odorous cargo

53. Which is an inclined platform, fitted at the intersection of the forward weather deck and the shell, for stowing an anchor?

Billboard

54. Containers of flammable solids should be conspicuously labeled by the shipper with a

red and white label

55. How should you signal the crane operator to lower the boom?

With arm extended and fingers closed, point thumb downward.

56. What is the term applied where one flange of a bar is bent to form an obtuse angle with the other flange?

Bevel Open

57. According to the regulations, what fire safety control feature is required in quick-closing shut off valves?

A fusible link

58. The maximum theoretical stress that can be developed on a guy in a yard and stay rig is limited by the?

lifting capacity of the winch

59. If the water level cannot be ssen in the lower part of the boiler gage glass, which of the following actions must be carried out immediately?

Secure the boiler fires

60. Which of the following is a structure built up around a mast from the deck to support the heel bearings of booms and to provide proper working clearances when a number of booms are installed on or around one mast?

Boom table

61. What is the term applied where one flange of a bar is bent to form an acute angle with the other flange?

Bevel closed

62. When there is excessive formation of frost in the evaporator coils, what should happen?

reduce efficiency of refrigerating plant

63. Why is it necessary to transfer fuel oil to the settling tanks, for what purposes ?

allow the sediments and water to settle

64. Which statement about the ventilation of bulk coal is TRUE?

Coal should be surface ventilated only.

65. Which is characteristic of a "special cargo"?

It is of high value or easily pilferable

66. Which safety precaution(s) should be observed during crane operations?

Using the proper slings or other lifting devices during cargo operations

67. What is an accidental grounding of a vessel ?

stranding

68. When a fuel oil tank is being topped off during bunkering operations, the tank valve should be closed

after the shore pumps are stopped

69. In order to prevent overheating of the packing in the stern tube stuffing box, what should youdo ?

the gland is properly adjusted to permit a slight leakage of sea water

70. Which one of the following method of unloading a low pressure air compressor at start-up is accomplished by ?

using a temporarily opened cylinder clearance pocket

71. Corrosive liquids and acids should have which kind of label?

White and black

72. How is the minimum bursting pressure for each cargo hose assembly determined?

four times the sum of the relief valve setting and the static head

73. Before the longitudinal carriage feed of lathe is engaged, you must be certain the

carriage clamp screw is loosened

74. What guide the information on the treatment of illness, which are of a general nature and not predominantly concerned with chemical poisoning may be found?

MFAG

75. The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as

spontaneous combustion

76. What is a joint formed when two steel plates are placed end-to-end ?

butt

47. What part of the ground tackle is the most likely to develop fractures due to extensive anchor use?

Jews\' harp

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