此题为多项选择题。
第1题
The free surface effects of a partially-full tank in a floating ship increase with the ().
A.surface area of the fluid in the tank
B.displacement volume of the ship
C.draft of the ship
D.height of the tank above the keel
第2题
A.Transverse free surface correction for the vessel
B.Sum of the vertical moments of the vessel
C.Sum of the longitudinal free surface moments of the vessel
D.Longitudinal centerline of the vessel
第3题
第4题
A.geometric center of the waterplane area
B.intersection of the vertical centerline and line of action of the buoyant force
C.center of gravity of the vessel corrected for free surface effects
D.geometric center of the displaced volume
第5题
Which statement about the free surface effect is TRUE ________.
A.It increases in direct proportion to the length of the tank times the breadth squared
B.It decreases at increased angles of heel due to pocketing when a tank is 90% full
C.It decreases in direct proportion to increasing specific gravity of the liquid in the tank
D.In practice,the correction is considered to be a virtual reduction of KG
第6题
The center of the underwater volume of a floating vessel is the ().
A.Center of buoyancy
B.Center of flotation
C.Uncorrected height of the center of gravity of the vessel
D.Center of gravity of the vessel corrected for free surface effects
第7题
A.The color, surface electric resistance, free radical groups, and roughness of the material to be bonded
B.The weight, surface free energy, smell, and roughness of the material to be bonded
C.The wettability, surface free energy, polar groups, and roughness of the material to be bonded
D.The thickness, surface free energy, polar groups, and flatness of the material to be bonded
第8题
A tank containers should not generally be more than 95% full,______.
A.to allow for possible thermal expansion of the contents
B.to prevent dangerous surging movements in transit
C.to increase its weight
D.to change the free surface in it
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