900mm
600mm
760mm
450mm
第1题:
A negative metacentric height ______.
A.should always be immediately corrected
B.will always cause a vessel to capsize
C.always results from off-center weights
D.All of the above are correct
第2题:
The purpose of the "set" hand on an aneroid barometer is to ______.
A.adjust the barometer
B.indicate any change in the reading of the barometer
C.provide a correction for height above sea level
D.provide a correction for temperature changes
第3题:
A. been exposed to
B. exposed to
C. been exposed on
D. exposed on
第4题:
Metacentric height is a measure of ______.
A.initial stability only
B.stability through all angles
C.maximum righting arm
D.All of the above
第5题:
What does “evel-luffing” accomplish during crane operations ________.
A.It prevents the load from swinging when the boom level is adjusted
B.Less power is needed when topping the boom with a load on the hook
C.It maintains the height of the load above the deck
D.All of the above
第6题:
The error in the measurement of the altitude of a celestial body,caused by refraction,increases as the ______.
A.horizontal parallax decreases
B.observer's height above sea level increases
C.humidity of the atmosphere decreases
D.altitude of the body decreases
第7题:
Normal pool elevation is the height in feet of the section of river above a dam. This height is measured from ______.
A.low steel on the Huey P. Long Bridge
B.mean sea level
C.the local water table
D.the minimum dam control level
第8题:
A. Half Height, Universally Keyed PCI card
B. Full Height, 3.3v PCI-X card
C. Half Height, x16 PCI Express Card
D. Half Height, 3.3v PCI card
E. Half Height, Universally Keyed PCI-X card
F. Full Height, Universally Keyed PCI card
G. Half Height, x8 PCI Express Card
第9题:
For a floating vessel, the result of subtracting KG from KM is the ______.
A.height of the metacenter
B.height of the righting arm
C.height of the center of buoyancy
D.metacentric height
第10题:
过渡高度以上可供使用的最低飞行高度层。()