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单选题
When the vessels steering wheel on the navigation bridge is turned, the difference existing between the position of the wheel and that of the rudder is known as （）.
A
proportional band
B
the error signal
C
the reset signal
D
feedback
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更多 “单选题When the vessels steering wheel on the navigation bridge is turned, the difference existing between the position of the wheel and that of the rudder is known as （）.A proportional bandB the error signalC the reset signalD feedback” 相关考题
考题
Navigation lights must be displayed in all weathers from sunset to sunrise. They also _____.A.must be displayed when day signals are being usedB.must be displayed when moored to a pierC.may be extingushed at night on open waters when no other vessels are in the areaD.may be displayed during daylight
考题
The follow-up gear on an electro-hydraulic steering gearA.relieves excessive fluid pressureB.takes the pump off stroke when the desired rudder angle is attainedC.allows for rudder movement faster than the movement of the shipsD.returns the rudder to amidships when the wheel is release
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材料：Navigation in the canalIt is not recommended that any person shall be allowed on the bridge or in the pilot house except the pilot and other representative of the Canal，and Master and such officers and other members of the crew of the vessel as may be necessary for its navigation and control，management，operation and safety．Navigational aids are difficult to maintain and are reported to be unreliable in this waters．A considerable amount of shipping uses the canal and，in addition，many local fishing craft with nets may be encountered in the area.Since passage through the canal entails a run of more than 250 miles，long periods of considerable vigilance are necessary in order to maintain safe standards of navigation．问题：PILOT HOUSE is referred to ______ in this passage．A.the cabin in which the pilot staysB.the space in which the rudder is locatedC.the bridge of vesselsD.the cabin which is prepared for the pilotSHIPPING is referred to ______ in this passage．A.he operations of transportation of goods by seaB.the procedures of marine transportation businessC.the management of marine transportation businessD.the vessels and shipsThe author implies that ______ ．A.even by making use of modern instrument it is difficult to maintain safety in this areaB.mariners should take it easy when navigating in this areaC.modern instrument should be used to control the safety of navigation in this areaD.it is dangerous when navigating in this areaThe person on the bridge or in the pilot house shall be those ______ ．A.who are recommendedB.who are familiar with the navigation，management，operation and safety controlC.who are directly involved in the navigation，management，operation and safety controlD.who have nothing to do with the navigation，management，operation and safety control请帮忙给出每个问题的正确答案和分析，谢谢！
考题
When steering by hand，which of the following may be a functional input to the steering gear as a result of turning the wheel ________．A.Non-follow-upB.Rudder adjustmentC.Weather adjustmentD.All the above may be activated
考题
When the helm is turned on the navigation bridge，which of the listed actions will be the FIRST response in the steering room on a ship equipped with an electro-hydraulic steering gear ________．A.The pumps go to full strokeB.The six-way valve aligns itself with the running pumpC.Both port and starboard cables are energizedD.The synchronous receiver turns，duplicating the helm motion
考题
Which statement about tunnel bow thrusters fitted to large vessels is TRUE ________．A.They are effective on most vessels at speeds up to 10 knotsB.Because of their location，most modern installations have as much power as a tugC.They are fully effective at all draftsD.When going astern at slow speed，they provide effective steering control
考题
材料：It is not recommended that any person shall be allowed on the bridge or in the pilot house except the pilot and other representative of the canal，and master and such officers and other members of the crew of the vessel as may be necessary for its navigation and control，management，operation and safety．Navigational aids are difficult to maintain and are reported to be unreliable in this waters．A considerable amount of shipping uses the canal and，in addition，many local fishing craft with nets may be encountered in the area. Since passage through the canal entails a run of more than 250 miles，long periods of considerable vigilance are necessary in order to maintain safe standards of navigation．问题：PILOT HOUSE is referred to ________ in this passage．A.the cabin in which the pilot staysB.the space which the rudder is locatedC.the bridge of vesselsD.the cabin which is prepared for the pilotSHIPPING is referred ________ in this passage．A.the operations of transportation of GOODs by seaB.the procedures of marine transportation businessC.the management of marine transportation businessD.the vessels and shipsThe person on the bridge or in the pilot house shall be those ________．A.who are recommendedB.who are familiar with the navigation．management．Operation and safety controlC.who are directly involved in the navigation，management，operation and safety controlD.who have nothing to do with the navigation，management，operation and safety controlThe author implies that ________．A.even by making use of modern instrument it is difficult to maintain safety in this areaB.mariners should take it easy when navigating in this areaC.modern instrument should be used to control the safety of navigation in this areaD.it is dangerous when navigating in this area请帮忙给出每个问题的正确答案和分析，谢谢！
考题
In an electro-hydraulic steering system, rudder movement is maitained in close synchronization with the steering wheel position by means of the ______.A.trick wheelB.follow-up controlC.six-way valveD.Rapson slide
考题
Questions 182-183 refer to the following information.
Introducing the product, This product generally ships within 2 business day （s） from Pinellas Park, Fords and weighs 2 pound （s）. Attaches to your steering wheel for easy access to a writing and drink storage surface. The Go Office Wheel Mate Steering Wheel Desk is flat for writing and perfect for lunch or a snack. This Go Office Wheel Mate Steering Wheel Desk stores neatly in your car when used with the larger Auto Exec Laptop Car Desk. For safety reasons, never use this product
while driving. Easily convert your car into your personal automobile office with the Wheel Mate car desk by this product.
For safety, it is advised not to use this product when you are _______
A. having lunch or a snack
B. working at office
C. driving a car
D. writing a letter
考题
Questions 182-183 refer to the following information.
Introducing the product, This product generally ships within 2 business day （s） from Pinellas Park, Fords and weighs 2 pound （s）. Attaches to your steering wheel for easy access to a writing and drink storage surface. The Go Office Wheel Mate Steering Wheel Desk is flat for writing and perfect for lunch or a snack. This Go Office Wheel Mate Steering Wheel Desk stores neatly in your car when used with the larger Auto Exec Laptop Car Desk. For safety reasons, never use this product
while driving. Easily convert your car into your personal automobile office with the Wheel Mate car desk by this product.
Who may use this product?
A. Drivers
B. Writers
C. Office works
D. Car repairmen
考题
The sailor on gangway watch should （）.A、keep sharp lookout at the forecastleB、receive visitorsC、expect the agentD、steering wheel
考题
单选题The prohibition against displaying lights which may be confused with required navigation lights applies（）.A
from sunset to sunrise and during restricted visibilityB
only when other vessels are in the areaC
only when operating in a traffic separation schemeD
only when under tow
考题
单选题When the steering wheel is turned, oil is directed to the steering gear rams by（）A
modulating the oil flow with the six-way valveB
moving the automatic pressure differential valveC
moving the receiving telemotor which regulates the tow-way valveD
varying the eccentricity of a floating ting or angle of a tilting box
考题
单选题An AC synchronous transmission type remote steering control system consists of a （）.A
transmitter at the steering station and a receiver at the steering engineB
reversible motor at the steering station geared to the steering pumpsC
small induction motor on the bridge which controls the redder through pulleysD
variable displacement hydraulic pump driven by a reversible DC motor
考题
单选题The（）of the telemotor is built the steering wheel console and located on the bridge.A
transmitterB
receiverC
pipesD
charging unit
考题
单选题The function of the hydraulic telemotor transmitter used in an electro-hydraulic steering gear system is to （）.A
transmit the rudder angle to the bridge indicatorB
prevent the control linkage from striking the stops when hard overC
automatically purge all entrained air from the systemD
send hydraulic signals to the receiving unit
考题
单选题The third officer’s duty is to（）when vessel is commanded under the pilot or captain.A
operate the wheel and stand byB
keep a lookout and operate steering gearC
enter telegraph orders in the bell bookD
operate the telegraph and enter telegraph orders in the bell book
考题
单选题Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.A
regulating the oil flow with the six-way valveB
moving the automatic differential valveC
moving the receiving tele-motor which regulates the two-way valveD
varying the angle of a tilting box or eccentricity of a floating ring
考题
单选题The required rudder angle is transmitted hydraulically or electrically from the steering wheel at the bridge to the （）at the steering gear, just above the rudder.A
transmitterB
tele-motorC
hydraulic ramD
hydraulic cylinder
考题
单选题The follow-up gear on an electro-hydraulic steering gear（）A
relieves excessive fluid pressureB
takes the pump off stroke when the desired rudder angle is attainedC
synchronizes wheel position with the rudder positionD
returns the rudder to midposition when the wheel is released
考题
单选题Which of the devices listed, when used on an electro-hydraulic steering gear, keeps the movement of the redder closely in step with the steering wheel?（）A
The follow-up gearB
The rudder angle indicatorC
The synchronous electric transmitterD
A rudder angle limit switch
考题
单选题In an electro-hydraulic steering system, under movement is maintained in close synchronization with the steering wheel position by means of the （）.A
trick-wheelB
follow-up controlC
six-way valveD
Rapson slide
考题
单选题Most Navigation System equipment is（）from the bridge, a unique location that allows for a centralized,safe and efficient management of ship navigation.A
accessibleB
restrictedC
deterredD
far away
考题
单选题The hand steering is a method by which the motion of the rudder is controlled with （）.A
a motor-driven steering wheelB
a pneumatic steering wheelC
a hand-driven steering wheelD
an electric steering wheel
考题
单选题If one hydraulic pump of an electro-hydraulic steering unit falls, the vessels steering can be initially and best maintained by using the （）.A
trick wheelB
accumulatorC
standby pumpD
telemotor
考题
单选题Navigation lights must be displayed in all weathers from sunset to sunrise. They also（）.A
must be displayed when day signals are being usedB
must be displayed when moored to a pierC
may be extinguished at night on open waters when no other vessels are in the areaD
may be displayed during daylight
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