更多"When a wind is permanently changing"的相关试题:
[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 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]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]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]Changing direction by bringing the stern of the vessel through the eye of the wind is known as（）.
A. jibing
B. running before the wind
C. tacking
D. reefing
[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]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]In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
A. NNW
B. WSW
C. ESE
D. SSW
[单项选择]When a wind force causes a floating ship to heel to a static angle，the（）.
A. centers of buoyancy and gravity are in the same vertical line
B. righting moment equals the wind-heeling moment
C. downflooding point is below water
D. deck-edge immersion occurs
[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]When changing from a compass course to a true course you should apply（）.
A. variation
B. deviation
C. variation and deviation
D. a correction for the direction of current set
[单项选择]When a wind blows round clockwise，it is（）.
A. Variable
B. Changing
C. Backing
D. Veering
[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]When the changing of a VHF channel / frequency is accepted，say（）.
A. I am going to change to VHF channel
B. I am certainly going to change to VHF channel
C. Changing to VHF channel
D. VHF channel. has been changed
[单项选择]If the current and wind are in the same direction，the sea surface represents a wind speed （）.
A. lower than actually exists
B. higher than actually exists
C. that actually exists
D. that has no proportional relationship
[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]When the direction handle of telegraph is moved, the relative position of camshaft and crankshaft will be（）
A. changed accordingly
B. unchanged
C. positioned ahead
D. positioned astern
