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）
A fairly accurate estimation of a ship’s position can be calculated by a technique know as ___.
A.dead reckoning
B.pilotage
C.great circle sailing
D.geographic navigation
参考答案
更多 “ A fairly accurate estimation of a ship’s position can be calculated by a technique know as ___.A.dead reckoningB.pilotageC.great circle sailingD.geographic navigation ” 相关考题
考题
It's important for you to get to know others． What can it help you?It can help us ___________________
考题
What does not contribute to the commercial GPS receiver position error ________．A.Satellite clockB.Ship's speedC.Atmospheric/ionospheric propagationD.Receiver
考题
By plotting the analysis messages on weather charts, we are able to ______.A.prevent any possible accident at seaB.prepare a reasonable forecast of the wind and weatherC.help the mariner to fix a accurate ship’s positionD.aid the salvage of a ship in peril
考题
The origins of human speech remain a mystery,__________ we have a fairly accurate idea of when writing began.
A．once
B．if
C．though
D．since
考题
水手应该知道船上吊杆的安全工作负荷。（）A、Sailors should know the SWL of cranes on board their ship.B、Sailors should know the SWL of derricks on board their ship.C、Officers should know the SWL of derricks on board their ship.D、Officers should know the SWL of cranes on board their ship.
考题
单选题What describes an accurate position that is NOT based on any prior position? （）A
Dead-reckoning positionB
Estimated positionC
FixD
Running fix
考题
单选题The technique of “asking the audience questions” is “unpredictable” because _____.A
you can’t predict the way in which the questions developB
whether the audience will be glad to participate is unknownC
you can’t know how much should be prepared to fill in the gapsD
the “conversation” style may make the presentation out of order
考题
单选题（）is a term denoting the determination of a ship’s position by observations of Celestial or terrestrial objects，or by a combination of both．A
Course-planningB
Position-fixingC
Radar-plottingD
Stowage-plan making
考题
单选题By plotting the analysis messages on weather charts，we are able to（）.A
prevent any possible accident at seaB
prepare a reasonable forecast of the wind and weatherC
help the mariner to fix a accurate ship's positionD
aid the salvage of a ship in peril
考题
单选题A high-velocity fog stream can be used in fire fighting situations to drive heat and smoke ahead of the fire fighters in a passageway. This technique should only be used when（）.A
using a 2-1/2 inch hoseB
there is an outlet for the smoke and heatC
the fire is totally contained by the ship's structureD
at least two fog streams can be used
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Since accumulations of H2S gas on a ship can be dangerous to personnel，it is important to know that H2S gas is（）.A
lighter than airB
heavier than airC
a yellow gas that is easily recognizedD
mildly toxic
考题
单选题At sea, we can use（）to fix the ship’s position.A
steering gearB
LoranC
rudder indicatorD
log
考题
单选题A fairly accurate estimation of a ship’s position can be calculated by a technique known as（）.A
dead reckoningB
pilotageC
great circle sailingD
geographic navigation
考题
单选题All event relating to the voyage,such as ship’s position,speed and details of the weather, are recorded in（）.A
logbookB
Bell bookC
oil record bookD
compass error book
考题
单选题Where does the look-out man stand?（）.A
In positions in which the noises in the ship are least likely to interfere with the hearing of a fog signal and the man can see clearlyB
In positions in which the noises in the ship are much likely to interfere with the hearing of a fog signalC
In positions in which the hearing of a signal is reduced to a minimumD
In a position in which the man can see clearly
考题
单选题Your assigned emergency station aboard ship can be found on the ship’s （）A
station billB
clearance papersC
certificate of inspectionD
permit to proceed
考题
单选题What is NOT an advantage of the house-fall system when compared to a married-fall system using two of the ship’s booms? （）A
There is a steady spotting area under the dockside blockB
Loading can be accomplished from a narrow apron without endangering the inboard boomC
The system can be used for working the second deck of a warehouseD
There is more accurate control of cargo drafts required to be stowed in the wings
考题
单选题The advantage of geostationary satellites is（）.A
the range of antenna can cover everywhere in the worldB
we can know the ship’s exact positionC
that the distress alert can be located as soon as possibleD
antenna of permanent earth stations may be directed towards fixed points in the sky
考题
单选题One of the best features of the journalist’s lifestyle is you never know what’s next.A
you never know what’s nextB
it’s so unpredictableC
that you never know what’s nextD
one can never predict what’s nextE
its unpredictability
考题
单选题By using（）system a ship can send a distress message and know with certainty it will be received.A
COSPAS-SARSATB
SATELLITEC
terrestrial radioD
INMARSAT
考题
单选题When out of sight of land, a ship’s position can be found by using（）.A
the coastal navigationB
the celestial navigationC
traditional navigationD
the great circle navigation
热门标签
最新试卷
