更多"The apparent wind’s speed can be ze"的相关试题:
[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]Apparent wind speed blowing across a vessel under tow can be measured by a(n)（）.
A. barometer
B. wind vane
C. anemometer
D. thermometer
[单项选择]Apparent wind speed blowing across a ship under tow can be measured by a(n)（）.
A. barometer
B. wind vane
C. anemometer
D. thermometer
[单项选择]When can routine communications be resumed when radio silence has been imposed?（）
A. After determining that the frequency or channel appears to be no longer in use
B. After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C. Routine communications can resume after the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D. If，in the Master's opinion，communications on that frequency will interfere with emergency communications
[单项选择]A body can only be observed at lower transit when（）.
A. the declination is the opposite name to the latitude
B. the algebraic sum of the colatitude and declination exceeds 90
C. the observer is in high latitudes above either polar circle
D. the body is circumpolar
[单项选择]Higher compensation may be claimed only when，with the consent of the carrier，the value of the goods declared by the shipper which（）the limits laid down in this clause has been stated in this bill of lading.
A. increases
B. exceeds
C. decreases
D. reduces
[单项选择]When can routine communications be resumed on a frequency or channel on which radio silence has been imposed? （）
A. After determining that the frequency or channel appears to be no longer in use
B. After determining that geographic distance from the distress situation will prohibit any other signal from interfering with emergency communications
C. After the Rescue Coordination Center transmits a message on the frequency or channel being used for emergency communications stating that such traffic has concluded
D. Routine communications can resume if，in the Master's opinion，communications on that frequency or channel will not interfere with emergency communications
[单项选择]A vessel is wind rode when it is（）.
A. at anchor and heading into the wind
B. backing into the wind
C. carrying lee rudder
D. necessary to apply a leeway correction to the course
[单项选择]Firefighting foam is only effective when the foam（）.
A. penetrates to the bottom of the fire
B. is kept saturated with low-velocity water fog
C. mixes with the burning fuel oil
D. completely covers the top of the burning liquid
[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]A vessel is overtaking when she can see which light(s) of a vessel ahead?（）
A. Only the stern light of the vessel
B. One sidelight and a masthead light of the vessel
C. Only a sidelight of the vessel
D. The masthead lights of the vessel
[单项选择]When dropping anchor，you are stationed at the windlass brake．The most important piece（s）of gear is（are）（）.
A. A hard hat
B. A long sleeve shirt
C. Gloves
D. Goggles
[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]When a wind blows round clockwise，it is（）.
A. Variable
B. Changing
C. Backing
D. Veering
[单项选择]When intruded, a territorial animal will only perform some hostile（）to warn off the intruder.
A. behaviors
B. actions
C. signs
D. gestures
[单项选择]When visibility is about 1 nautical mile only, we say that visibility is（）.
A. very
B. good
C. moderate
D. poor
