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The “Port-Off-Stbd” selector switch on an autopilot steering stand is used to ______．
A.change from hand electric steering to automatic gyro
B.change over one steering system to the other
C.change over hand electric steering to non-follow-up
D.change over the port to the starboard bow thruster
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更多 “ The “Port-Off-Stbd” selector switch on an autopilot steering stand is used to ______．A.change from hand electric steering to automatic gyroB.change over one steering system to the otherC.change over hand electric steering to non-follow-upD.change over the port to the starboard bow thruster ” 相关考题
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The “Mode” selector switch on the autopilot steering stand is used to select any of the following with the EXCEPTION of ______.A.automatic pilot steeringB.hand-electric steeringC.non-follow-up steeringD.rudder adjustment
考题
The “rudder adjustment” control on an autopilot steering stand is used to ______.A.align the rudder angle indicator with the true rudder angleB.set the number of degrees of rudder per degree of course errorC.set the departure from base course before actuating the rudderD.set the rate at which the rudder responds
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When steering by autopilot, how often should_______steering be checked?A.every dayB.when time allowsC.At least once a watchD.No checking is necessary
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For which type of connection should a straight－through cable be used?()
A.switch to switchB.switch to hubC.switch to routerD.hub to hubE.router to PC
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When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear ________．A.Non-follow-upB.Rudder adjustmentC.Weather adjustmentD.All the above may be activated
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For which type of connection should a straight-through cable be used?（）A、switch to switchB、switch to hubC、switch to routerD、hub to hubE、router to PC
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Which statement is true regarding an Ethernet collision domain?（）A、If a router is used, the collision domain includes all devices connected to the router.B、If a hub is used, the collision domain is limited to each device and the hub.C、If a switch is used, the collision domain is limited to each device and the switch.D、If a bridge is used, the collision domain includes all devices connected to the bridge.
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Which two statements are true regarding an Ethernet collision domain?（）A、If a switch is used, the collision domain is limited to each device and the switchB、If a hub is used, the collision domain is limited to each device and the hubC、If a hub is used, the collision domain includes all devices connected to the hubD、If a switch is used, the collision domain includes all devices connected to the switch
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What are the switch and bridge port characteristics of a layer two spanning-tree network that is fully converged?（）A、All switch and bridge ports are in the forwarding state.B、All switch and bridge ports are in the stand-by state.C、All switch and bridge ports are assigned as either root or designated ports.D、All switch and bridge ports are in either the forwarding or blocking state.E、All switch and bridge are either blocking or looping.
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Which two statements are true regarding an Ethernet collision domain?（）A、If a switch is used, the collision domain includes all devices connected to the switch.B、If a hub is used, the collision domain includes all devices connected to the hub.C、If a hub is used, the collision domain is limited to each device and the hub.D、If a switch is used, the collision domain is limited to each device and the switch.
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Which two statements are true regarding an Ethernet collision domain?（）A、The likelihood of collisions occurring increases when a switch is used.B、The likelihood of collisions occurring increases when a hub is used.C、If a hub is used, the collision domain is limited to each device and the hub.D、If a switch is used, the collision domain is limited to each device and the switch.
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单选题Hydraulic pumps most commonly used in steering systems are of the （）.A
lobe typeB
screw typeC
axial piston typeD
volute type
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A sweep oar is an oar that is（）.A
generally shorter than the others and is used to steer withB
is longer than the others and is used as the stroke oarC
is raised in the bow of the boat for the steersman to steer byD
longer than the others used for steering
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单选题Which statement is true regarding an Ethernet collision domain?（）A
If a router is used, the collision domain includes all devices connected to the router.B
If a hub is used, the collision domain is limited to each device and the hub.C
If a switch is used, the collision domain is limited to each device and the switch.D
If a bridge is used, the collision domain includes all devices connected to the bridge.
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多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switchBIf a hub is used, the collision domain is limited to each device and the hubCIf a hub is used, the collision domain includes all devices connected to the hubDIf a switch is used, the collision domain includes all devices connected to the switch
考题
单选题Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine （） ahead and astern.A
a brief trial with turning gearB
a brief trial on powerC
a long trial by steering gearD
one minutes trial with windlass
考题
单选题Which of the following types of hydraulic pumps would be used in a steering system?（）A
LobeB
ScrewC
Radial pistonD
Volute
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
多选题Which two statements are true regarding an Ethernet collision domain?（）AIf a switch is used, the collision domain is limited to each device and the switch.BIf a hub is used, the collision domain is limited to each device and the hub.CIf a hub is used, the collision domain includes all devices connected to the hub.DIf a switch is used, the collision domain includes all devices connected to the switch.
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多选题Which two statements are true regarding an Ethernet collision domain?（）AThe likelihood of collisions occurring increases when a switch is used.BThe likelihood of collisions occurring increases when a hub is used.CIf a hub is used, the collision domain is limited to each device and the hub.DIf a switch is used, the collision domain is limited to each device and the switch.
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单选题With reference to operating a four-ram steering gear system under emergency conditions, which one of the following statements is incorrect?（）A
Only one pump should be used at any timeB
The ship speed should be reduced to 70% of the normalC
Watch keeping of the steering gear should be increasedD
Limitations of the steering gear should be logged but the bridge need not be informed
考题
单选题The purpose of engine stand-by is that （）A
the main engine in the stand-by conditionB
auxiliary machinery in the stand-by conditionC
dynamical equipments in the stand-by condition and could be used immediatelyD
A and B
考题
单选题When relieving the helm，the new helmsman should know the（）.A
Course per magnetic steering compassB
Gyro errorC
VariationD
Maximum rudder angle previously used
考题
单选题When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear（）.A
Non-follow-upB
Rudder adjustmentC
Weather adjustmentD
All the above may be activated
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