网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
Apparent wind speed blowing across a vessel under tow can be measured by a(n)______．
A.barometer
B.wind vane
C.anemometer
D.Thermometer
参考答案
更多 “ Apparent wind speed blowing across a vessel under tow can be measured by a(n)______．A.barometerB.wind vaneC.anemometerD.Thermometer ” 相关考题
考题
29． Why are green plants and grass helpful?A． Because they can hold the water．B． Because they can stop the wind from blowing the earth away．C． Because they can keep the earth wet．D．All the above．
考题
A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started?A.When the towing vessel enters the fogB.When the drilling rig enters the fogC.When the towing vessel can no longer be seen from the rigD.Immediately
考题
THE SPEED OF A VESSEL ADJUSTED TO THAT OF A PILOT BOAT AT WHICH THE PILOT CAN SAFELY EMBARK is ______.A.Ground speedB.Boarding speedC.Relative speedD.Speed of the vessel
考题
A semisubmersible rig under tow should be ballasted down if ______.A.motion begins to be excessiveB.water begins to break over the pontoonsC.period of roll exceeds 12 secondsD.forward progress is halted by head wind
考题
When cargo aboard a jack-up in transit becomes adrift，the tow vessel should be asked to ______.A.turn into the seasB.turn to be parallel to the seasC.reduce speedD.increase speed
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
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When cargo aboard a jack-up in transit becomes adrift，the tow vessel should be asked to （）.A
turn into the seasB
turn to be parallel to the seasC
reduce speedD
increase speed
考题
单选题A mobile offshore drilling unit under tow is approaching a fog bank. When should fog signals be started? （）A
When the towing vessel enters the fogB
When the drilling rig enters the fogC
When the towing vessel can no longer be seen from the rigD
Immediately
考题
单选题Apparent wind speed blowing across a ship under tow can be measured by a(n)（）.A
barometerB
wind vaneC
anemometerD
thermometer
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A position that is obtained by applying estimated current and wind to your vessel’s course and speed is a(n) （）.A
estimated positionB
dead reckoning positionC
fixD
None of the above
考题
单选题The apparent wind can be zero when the true wind is from（）.A
ahead and equal to the ship's speedB
astern and equal to the ship's speedC
ahead and equal to twice the ship's speedD
astern and equal to twice the ship's speed
考题
单选题A vessel towing where the tow prevents her from changing course shall carry（）.A
only the lights for a vessel towingB
only the lights for a vessel restricted in her ability to maneuverC
the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuverD
the lights for a towing vessel and the lights for a vessel not under command
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If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.A
change courseB
slow downC
heave toD
adjust tow line length
考题
单选题In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.A
shock loading on the tow line is reduceB
towing speed is improvedC
the vessel is more visible from the tugD
the catenary of the tow line is reduced
考题
单选题Every vessel should at all times proceed at a safe speed. Safe speed is defined as that speed where（）.A
you can stop within your visibility rangeB
you can take proper and effective action to avoid collisionC
you are traveling slower than surrounding vesselsD
no wake comes from your vessel
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Apparent wind speed blowing across a vessel under tow can be measured by a(n)（）.A
barometerB
wind vaneC
anemometerD
thermometer
考题
单选题The apparent wind’s speed can be zero only when two conditions are present. One condition is that the true wind（）.A
must be from dead aheadB
speed must be zeroC
must be from dead asternD
must be on the beam
考题
单选题A vessel engaged in replenishment or transferring persons，provisions or cargo while under way can be regarded as（）.A
a vessel restricted in her ability to maneuverB
a vessel engaged in laying，serving or picking up a navigation mark，submarine cable or pipelineC
a vessel not under commandD
a power-driven vessel
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A semisubmersible rig under tow should be ballasted down if（）.A
motion begins to be excessiveB
water begins to break over the pontoonsC
period of roll exceeds 12 secondsD
forward progress is halted by head wind
热门标签
最新试卷
