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50. wind B. waterC. airD. sand


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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

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考题 The numeral in the center of a wind rose circle on a pilot chart indicates the ______.A.total number of observationsB.average wind force on the Beaufort scaleC.average wind force in knotsD.percentage of calms

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

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考题 砂培 sand culture

考题 单选题When evacuating a seaman by helicopter lift,the vessel should be().A stopped with the wind dead aheadB stopped with the wind on the beamC underway with the wind 30°on the bowD underway on a course to provide no apparent wind

考题 单选题The “singer” treats the patient by ______.A rubbing the patient’s body with sand from a sand painting figureB destroying the sand painting figure of a supernatural beingC transferring his supernatural power to the patientD applying a magic substance to the patient’s body

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There is a fire aft aboard your vessel. To help fight the fire,you should().A put the wind off either beamB head the bow into the wind and decrease speedC put the stern into the wind and increase speedD put the stern into the wind and decrease speed

考题 单选题During large storms, when waves crash against the beach, large amounts of sand is suspended in the water and may drift with the current.A waves crash against the beach, large amounts of sand is suspendedB the beach is crashed against by waves, large amounts of sand are suspendedC the beach is crashed against by waves suspending large amounts of sandD waves crash against the beach, large amounts of sand are suspendedE waves crash against the beach, the suspending of large amounts of sand is

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 you walk in a busy street, you should walk on the side _____.A where the wind is comingB where the wind is goingC where the wind is weakerD where the wind is stronger

考题 单选题In the Northern Hemisphere,a wind that shifts counterclockwise is a().A veering windB backing windC reverse windD chinook 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The numeral in the center of a wind rose circle on a pilot chart indicates the ().A total number of observationsB average wind force on the Beaufort scaleC average wind force in knotsD percentage of calms

考题 单选题The fact that reproductions of sand paintings are now commercially available shows that ______.A modem technology has helped the mass production of sand paintingsB people have come to appreciate the healing effect of sand paintingsC modem people no longer believe in supernatural powerD people have realized the artistic value of sand paintings

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