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单选题
A virtual rise in the center of gravity of a ship may be caused by（）.
A
filling a partially filled tank
B
using fuel from a pressed fuel tank
C
emptying a partially filled tank
D
transferring pipe from the setback area to the pipe rack
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单选题The difference between the height of the metacenter and the height of the center of gravity is known as the（）.A
metacentric heightB
height of the righting armC
fore and aft perpendicularD
height of the center of buoyancy
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单选题What is the definition of transverse metacenter?（）A
The distance between the actual center of gravity and the maximum center of gravity that will still allow a positive stabilityB
The point to which G may rise and still permit the vessel to possess positive stabilityC
The sum of the center of buoyancy and the center of gravityD
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单选题In order to determine the trimming arm for your vessel at any particular draft，which of the following would you compare?（）.A
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Longitudinal center of floatation and longitudinal center of gravityC
Longitudinal center of floatation and longitudinal center of buoyancyD
Longitudinal tipping center and longitudinal center of gravity
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单选题A partially full tank causes a virtual rise in the height of the（）.A
metacenterB
center of buoyancyC
center of flotationD
center of gravity
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单选题Aboard a ship，multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s（）.A
LCGB
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righting momentD
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单选题The existence of liquids in partially full tanks or compartments of a ship causes a virtual rise in the height of the（）.A
metacenterB
center of buoyancyC
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geometric center of the waterplane areaB
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单选题If the vertical center of gravity (VCG) of a ship rises 1.7 feet，the righting arm (GZ) for the various angles of inclination will（）.A
decreaseB
increaseC
remain unchangedD
be changed by the amount of GG' x cosine of the angle
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statically balancedC
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单选题The center of the underwater volume of a floating vessel is the（）.A
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center of flotationC
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单选题A vessel aground may have negative GM since the（）.A
decrease in KM is equal to the loss of draftB
virtual rise of G is directly proportional to the remaining draftC
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displacement lost acts at the point where the ship is aground
考题
单选题In the absence of external forces, the center of gravity of a floating vessel is located directly above the（）.A
metacenterB
amidshipsC
center of floatationD
geometric center of the displaced volume
考题
单选题A crankshaft whose center of gravity coincides with its center line is said to be（） Ⅰ.statically balanced Ⅱ.dynamically balancedA
Ⅰ onlyB
Ⅱ onlyC
both Ⅰ and ⅡD
neither Ⅰ nor Ⅱ
考题
单选题A vessel aground may have negative GM since the（）.A
decrease in KM is equal to the loss of draftB
virtual rise of G is directly proportional to the remaining draftC
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displa ement lost acts at the point where the ship is aground
考题
单选题When the（）is large, the ship is stiff; and when it is small, she is tender.A
GMB
free surfaceC
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考题
单选题A virtual rise in the center of gravity may be caused by（）.A
filling a partially filled tankB
using an on board crane to lift a freely swinging heavy objectC
emptying a partially filled tankD
transferring ballast from the forepeak to the after peak
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单选题The point to which your vessel’s center of gravity (G) may rise and still permit the vessel to have positive stability is called the（）.A
metacentric pointB
metacenterC
metacentric radiusD
tipping center
考题
单选题A virtual rise in the center of gravitty may be caused by（）.A
filling a partially tankB
using an on board crane to life a freely swinging heavy objectC
emptying a partially filled tankD
transferring ballast from the forepeak to the after peak
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