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A wind vane on a moving vessel shows ______.
A.dead reckoning wind direction
B.true wind direction
C.apparent wind direction
D.estimated wind direction
参考答案
更多 “ A wind vane on a moving vessel shows ______.A.dead reckoning wind directionB.true wind directionC.apparent wind directionD.estimated wind direction ” 相关考题
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
考题
A fire is discovered in the bow of your vessel while making way. The wind is from ahead at 35 knots. You should ______.A.remain on course and hold speedB.remain on course but slack the speedC.change course to put the wind on either beam and increase speedD.change course and put the stern to the wind
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
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
Apparent wind speed blowing across a vessel under tow can be measured by a(n)______．A.barometerB.wind vaneC.anemometerD.Thermometer
考题
If a sailing vessel with the wind on the port side sees a sailing vessel to windward and cannot tell weather the other vessel has the wind on the port or starboard side, she shall ______.A.hold course and speedB.sound the danger signalC.keep out of the way of the other vesselD.turn to port and come into the wind
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Changing direction by bringing the stern of the vessel through the eye of the wind is known as（）.A
jibingB
running before the windC
tackingD
reefing
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Which position includes the effects of wind and current（）.A
Dead reckoning positionB
Leeway positionC
Estimated positionD
Set position
考题
单选题The vessel was drifted off from her（）due to strong wind.A
courseB
trackC
directionD
trend
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A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.A
remain on course and hold speedB
change course and put the stern to the windC
change course to put the wind on either beam and increase speedD
remain on course but slack the speed
考题
单选题A fire is discovered in the bow of your vessel while making way. The wind is from ahead at 35 knots. You should（）.A
remain on course and hold speedB
remain on course but slack the speedC
change course to put the wind on either beam and increase speedD
change course and put the stern to the wind
考题
单选题Most of your vessel’s superstructure is forward. How will the vessel lie when drifting with no way on?（）.A
With the wind from aheadB
With the wind off the port beamC
With the wind off the starboard beamD
With the wind from abaft the beam
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You are landing a single-screw vessel，with a right-hand propeller，starboard side to the dock.When you have approached the berth and back the engine，you would expect the vessel to （）.A
Lose headway without swingingB
Turn her bow toward the dockC
Turn her bow away from the dockD
Head into the wind，regardless of the side the wind is on
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
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