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单选题
The direction of the surface wind is（）.
A
directly from high pressure toward low pressure
B
directly from low pressure toward high pressure
C
from high pressure toward low pressure deflected by the earth's rotation
D
from low pressure toward high pressure deflected by the earth's rotation
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考题
SHIFT OF WIND DIRECTION IN AN ANTICLOCKWISE MANNER, FOR EXAMPLE FROM NORTH TO WEST ( OPPOSITE OF VEERING ) defines ______.A.Backing (of wind)B.Veering (of wind)C.Shifting of windD.altering of wind
考题
The best estimate of the wind direction at sea level can be obtained from observing the direction of the ______.A.cloud movementB.vessel headingC.wavesD.swells
考题
If the current and wind are in the same direction，the sea surface represents a wind speed ______.A.lower than actually existsB.higher than actually existsC.that actually existsD.that has no proportional relationship
考题
If the current and wind are in opposite directions，the sea surface represents ______.A.a greatly reduced wind speedB.a higher wind speed than what really existsC.a lower wind speed than what really existsD.more turbulent winds
考题
When recording the wind direction in the weather log，you would report the ______．A.direction the wind is blowing towardB.direction the wind is blowing fromC.duration of the maximum gust of windD.wind chill factor
考题
The velocity of the apparent wind can be more than the true wind，and come from the same direction，if certain conditions are present．One condition is that the ______．A.Ship's speed must be less than the true wind velocityB.True wind must be from dead asternC.True wind velocity must be faster than the ship's speedD.True wind must be from dead ahead
考题
A wind vane on a moving vessel shows ______.A.dead reckoning wind directionB.true wind directionC.apparent wind directionD.estimated wind direction
考题
An anemometer on a moving vessel measures ______.A.apparent wind speed onlyB.true wind speed and true wind directionC.true wind speed onlyD.apparent wind speed and true wind direction
考题
Changing direction by bringing the stern of the vessel through the eye of the wind is known as _______.A.jibingB.running before the windC.ReefingD.tacking
考题
In the Northern Hemisphere a wind is said to veer when the wind ______.A.changes direction clockwise, as from north to east, etcB.changes direction counterclockwise, as from south to east, etcC.changes direction violently and erraticallyD.remains constant in direction and speed
考题
In the southern hemisphere the wind flow associated with a low pressure system will have which of the following characteristic？________.A.the wind velocity is least near the center of the systemB.th e direction of the flow is counterclockwiseC.both A and BD.neither A nor B
考题
单选题In most cases，the direction of the apparent wind lies between the bow and（）.A
the direction of the true windB
true northC
the beam on the windward sideD
the beam on the lee side
考题
单选题Changing direction by bringing the stern of the vessel through the eye of the wind is known as（）.A
jibingB
running before the windC
tackingD
reefing
考题
单选题When recording the wind direction in the weather log，you would report the（）.A
direction the wind is blowing towardB
direction the wind is blowing fromC
duration of the maximum gust of windD
wind chill factor
考题
单选题When reporting wind direction, you should give the direction in（）.A
true degreesB
magnetic compass degreeC
relative degreesD
isobaric degrees
考题
单选题If the current and wind are in the same direction，the sea surface represents a wind speed （）.A
lower than actually existsB
higher than actually existsC
that actually existsD
that has no proportional relationship
考题
单选题Grinding to eliminate shallow surface defects should be done（）.A
parallel to the longitudinal direction of the chainB
perpendicular to the direction of the anchor chainC
diagonally across the link of the anchor chainD
around the circumference of the chain link
考题
单选题（）generally indicates that a gale or storm is approaching.A
Falling barometric pressureB
Rising barometric pressureC
The circulations of windsD
The change of wind direction
考题
单选题In the Northern Hemisphere a wind is said to veer when the wind（）.A
Changes direction clockwise，as from north to east，etcB
Changes direction violently and erraticallyC
Remains constant in direction and speedD
Changes direction counterclockwise，as from south to east，etc
考题
单选题An instrument that indicates wind direction is known as a(n)（）.A
weather vane，wind vane or wind sockB
hydrometerC
hygrometerD
sling psychrometer
考题
单选题When a wind is permanently changing the direction from which it blows, it is（）.A
variableB
changingC
backingD
veering
考题
单选题The direction of the surface wind is（）.A
directly from high pressure toward low pressureB
directly from low pressure toward high pressureC
from high pressure toward low pressure deflected by the earth's rotationD
from low pressure toward high pressure deflected by the earth's rotation
考题
单选题The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.A
temperatureB
densityC
deflectionD
speed
考题
单选题The overall set in Malacca straight is to the NW, but from May to September there is a tendency for SE sets to prevail in some N and central parts.In this sentence,“set”refers to（）.A
The direction of traffic flowB
The direction of currentC
The direction of monsoonD
The direction of wind
考题
单选题An anemometer on a moving vessel measures（）.A
apparent wind speed onlyB
true wind speed and true wind directionC
true wind speed onlyD
apparent wind speed and true wind direction
考题
单选题A wind blows round anticlockwise defines（）.A
backing ( of wind )B
beach ( to )C
veering ( of wind )D
maintaining direction of the wind
考题
单选题In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.A
the wind speed is greater here since the wind is traveling in the same general direction as the storm's trackB
the direction of the wind and seas might carry a vessel into the path of the stormC
the seas are higher because of greater wind speedD
All of the above
考题
单选题If the current and wind are in opposite directions，the sea surface represents（）.A
a greatly reduced wind speedB
a higher wind speed than what really existsC
a lower wind speed than what really existsD
more turbulent winds
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