更多"If the current and wind are in the "的相关试题:
[单项选择]If the current and wind are in opposite directions，the sea surface represents（）.
A. a greatly reduced wind speed
B. a higher wind speed than what really exists
C. a lower wind speed than what really exists
D. more turbulent winds
[单项选择]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
[单项选择]Current changing in direction and rising and falling in value is （）.
A. AC
B. DC
C. generator
D. fresh water generator
[单项选择]In most cases，the direction of the apparent wind lies between the bow and（）.
A. the direction of the true wind
B. true north
C. the beam on the windward side
D. the beam on the lee side
[单项选择]An instrument that indicates wind direction is known as a(n)（）.
A. weather vane，wind vane or wind sock
B. hydrometer
C. hygrometer
D. sling psychrometer
[单项选择]When a wind is permanently changing the direction from which it blows, it is（）.
A. variable
B. changing
C. backing
D. veering
[单项选择]When reporting wind direction, you should give the direction in（）.
A. true degrees
B. magnetic compass degree
C. relative degrees
D. isobaric degrees
[单项选择]When recording the wind direction in the weather log，you would report the（）.
A. direction the wind is blowing toward
B. direction the wind is blowing from
C. duration of the maximum gust of wind
D. wind chill factor
[单项选择]The current flowing first in one direction and then in another is called（） current.
A. an alternating
B. a rush
C. a direct
D. an exciting
[单项选择]The Humboldt Current flows in which direction?（）
A. North
B. South
C. East
D. West
[单项选择]The best estimate of the wind direction at sea level can be obtained from observing the direction of the（）.
A. cloud movement
B. vessel heading
C. waves
D. swells
[单项选择]Current flowing in only one direction is called （）
A. alternating current
B. omnidirectional current
C. direct current
D. sinusoidal current
[单项选择]The velocity of the wind，its steady direction，and the amount of time it has blown determines a wind driven current’s（）.
A. temperature
B. density
C. deflection
D. speed
[单项选择]A line of clouds，sharp changes in wind direction，and squalls are most frequently associated with a(n)（）.
A. occluded front
B. warm front
C. cold front
D. warm sector
[单项选择]In moderate wind and current what should be the length of chain with a single anchor?（）
A. 5 times the depth of the water in good holding ground
B. 10 times the depth of the water in shallow water
C. 2 times the depth of the water in poor holding ground
D. 8 times the depth of the water in deep water
[单项选择]You are docking a vessel．Wind and current are most favorable when they are（）.
A. crossing your course in the same direction
B. crossing your course in opposite directions
C. parallel to the pier from ahead
D. setting you on the pier
[单项选择]The apparent wind can be zero when the true wind is from（）.
A. ahead and equal to the ship's speed
B. astern and equal to the ship's speed
C. ahead and equal to twice the ship's speed
D. astern and equal to twice the ship's speed
[单项选择]Tide is（）in direction ENE.
A. getting
B. setting
C. being
D. having
