甲类一等三副航海英语真题48-2

49.In the northern hemisphere, a wind that shifts counterclockwise is a _______.

A.Veering wind B.Backing wind C.Reverse wind D.Chinook wind KEY: B

50.The best estimate of the wind direction at sea level can be obtained from observing the direction of the ______.

A.cloud movement B.vessel heading C.waves D.swells KEY: C

51.The primary wind belt which has the greatest effect on the set, drift, and depth of the equatorial currents is the _______. A.Doldrums B.Horse latitudes C.Trade winds D.Prevailing westerlies KEY: C

52.Structural bulkheads on a ship are usually ______. A. continuous B. watertight C. transverse D. non-watertight KEY: B

53.Bilge keels are fitted on ships to ______. A. assist in drydock alignment B. improve the vessel's stability

C. protect the vessel from slamming against piers D. reduce the rolling of the vessel KEY: D

54.The purpose of a bilge well is to ______.

A. afford access to the shell through the double bottoms B. collect water to be pumped out

C. provide access for the pneumercator

D. provide a base line for sounding measurements KEY: B

55.How would the exhaust of a properly operating diesel engine appear? ______. A. Light blue haze B. Light brown haze C. Light gray haze D. Perfectly clear

KEY: D

56.For most ship engines，the fuel is ______. A. natural gas B. diesel oil C. propane D. bunker fuel KEY: B

57.

58. Does current and drift effect the CPA/TCPA calculations on a true motion display? A. Yes B. No

C. Only a little bit D. Yes, very seriously 答案：B

59.

60.You are using a radar in which your own ship is shown at the center，and the heading flash always points to 0°. If bearings are measured in relation to the flash，what type of bearings are produced?

A.Relative B.TRUE C.Compass D.Magnetic KEY: A

61.Magnetic compass deviation ______.

A. varies depending upon the bearing used

B. is the angular difference between magnetic north and compass north C. is published on the compass rose on most nautical charts

D. is the angular difference between geographic and magnetic meridians KEY: B

62.The compass deviation changes as the vessel changes ______. A. geographical position

B. speed C. heading D. longitude KEY: C

63.The annual change in ______ is 0．2 degree． A. Magnetic Variation B. Marine Insurance C. Maritime Accident

D. Mean High Water Spring

KEY: A

64.The GPS satellite orbits the earth in approximately_______. A.3 hours B.6 hours C.12 hours D.24 hours 答案：C

65.All echosounders can measure the ______. A.Actual depth of water.

B.Actual depth of water below keel.

C.Average depth from waterline to hard bottom. D.Average depth of water to soft bottom. KEY: B 66.

67.What publications should a GMDSS Operator consult regarding the proper set-up and operation of vessel equipment ?______

A. ITU Publications B. The manufacturers instruction manuals C. Part 90 of the FCC Rules and Regulations

D. Code of Federal Regulations, Title 47, Part 80, Subpart W KEY: B

68.Which action should you take after sending a false distress alert on VHF? A. Send a DSC cancellation message on Ch-70.

B. Make a voice announcement to cancel the alert on Ch-16. C. Make a voice announcement to cancel the alert on Ch-13. D. Make a voice announcement to cancel the alert on Ch-22A. KEY: B

69.My vessel maneuvering ______ difficulty. Please keep well clear ______ me. A. With, of. B. In, of. C. At, apart. D. With, from KEY: A

70.My Captain is trying to ______ the pilot station before the ebb tide． A. steam B. proceed C. approach D. reach KEY: D

71Result of search negative means ______. A.The search has found nothing. B.The derelict has been found. C.The derelict has been located. D.The derelict has been sighted. KEY: A

72. In the unlikely event that a distress situation allows you to send only a very short

message,after MAYDAY would you first say______? A.Your name and callsign B.Your position

C.The number of persons on board D.the nature of the distress situation

答案：A在不可能发生遇险情况的事件中允许你发送一个非常简短的信息，在MADAY后你首先说你的船名和呼号

73.The terms ceiling and margin plate are associated with the ______. A. crew's quarters B. engine room C. main deck D. tank top

KEY: D

74.Placing a lashing across a hook to prevent a fitting from slipping out of the hook is called ______.

A. Faking. B. Flemishing down. C. Mousing. D. Worming. KEY: C

75. The head block is located_____. A.at the base of the boom C.at the head of the mast KEY:D

B.at the head of the boom D.on top of the jack staff

76.A spring line leads ______.

A.Fore and aft from the ship’s side.

B.To the dock at a right angle to the vessel. C.Through the bull nose or chock at the bow. D.Through the chock at the stern.

KEY: A

77.Paints and solvents on a vessel should be _______. A.Stored safely at the work site until work is completed B.Returned to the paint locker after each use

C.Covered at all times to protect from ignition sources D.Stored in a suitable gear locker KEY: B

[78]A distress signal ______.

A. consists of 5 or more short blasts of the fog signal apparatus B. consists of the raising and lowering of a large white flag C. may be used separately or with other distress signals D. is used to indicate doubt about another vessel's intentions KEY: C

79.You are standing the wheelwatch when you hear the cry, “Man overboard starboard side”. You should indtinctively ______

A. give full right rudder B. give full left rudder

C. put the rudder amidships D. throw a life ring to mark the spot KEY: A

80. After using a CO2 portable extinguisher, it should be ______. A.Put back in service if some CO2 remains. B.Hydrostatically tested. C.Retagged. D.Recharged.

KEY: D

81.A fuel-air mixture below the lower explosive limit is too __________. A.Rich to burn B.Lean to burn C.Cool to burn D.Dense to burn KEY: B