甲类三副航海英语试题及答案(2)
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A qualified deck officer should be______the watch．
- A.in charge of
- B.arranged
- C.decided to
- D.the depth of
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A pumproom is suspected of accumulating gases after a ventilation machinery breakdown.Where should the combustible gas indicator case be placed when testing the pumproom atmosphere for combustible gases? ______.
- A.In the lower level of the pumproom
- B.In the middle level of the pumproom
- C.In the upper level of the pumproom
- D.On the deck outside the pumproom
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A protective suit which reduces the body heat-loss of a person wearing it in cold water is called______．
- A.water suit
- B.diving suit
- C.immersion suit
- D.swimming suit
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A proper look-out shall be maintained ______.
- A.only at night
- B.only during restricted visibility
- C.at night and during restricted visibility
- D.at all times
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A position obtained by crossing lines of position taken at different times and advanced to acommon time is a(n) ______.
- A.dead-reckoning position
- B.running fix
- C.estimated position
- D.Fix
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A position that is obtained by applying estimated current and wind to your vessel’s courseand speed is a(n) ______.
- A.dead reckoning position
- B.estimated position
- C.fix
- D.None of the above
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A position that is obtained by using two or more intersecting lines of position, taken atnearly the same time, is a(n) ______.
- A.estimated position
- B.fix
- C.running fix
- D.dead-reckoning position
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A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in ______.
- A.generators
- B.oil drums
- C.the bridge controls
- D.combustible metals
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A position obtained by applying only your vessel’s course and speed to a known position is a _______.
- A.dead-reckoning position
- B.fix
- C.probable position
- D.running fix
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A polyconic projection is based on a ______.
- A.plane tangent at one point
- B.cylinder tangent at one parallel
- C.cone tangent at one parallel
- D.series of cones tangent at selected parallels
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