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单选题
A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n)（）.
A
forward spring line and going slow ahead on the inboard engine
B
after spring line and going slow astern on the outboard engine
C
forward spring line and going slow ahead on both engines
D
forward spring line and going slow ahead on the outboard engine
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更多 “单选题A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n)（）.A forward spring line and going slow ahead on the inboard engineB after spring line and going slow astern on the outboard engineC forward spring line and going slow ahead on both enginesD forward spring line and going slow ahead on the outboard engine” 相关考题
考题
A controllable pitch propeller on a diesel driven vessel eliminates the need forA.friction clutchesB.disconnect clutchesC.reversing gearsD.reduction gears
考题
A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?A.When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may resultB.When going directly from full ahead to full astern，there is complete steering controlC.When the vessel has headway and the propeller is in neutral，there is no effect on rudder controlD.When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
考题
Which of the following would be considered downflooding on a fishing vessel as defined in regulation?A.Vessel heels until water enters a hatchB.Vessel in collision floods through a damaged area above the waterlineC.Vessel takes on water due to the hatches being left open in heavy rainD.Vessel takes on water by the propeller shaft due to failure of the stern gland
考题
The sea painter of a rescue boat should be led ______.A.forward and outboard of all obstructionsB.forward and inboard of all obstructionsC.up and down from the main deckD.to the foremost point on the vessel
考题
When turning a ship in restricted space with a strong wind，it is normally best to ______．A.Go ahead on both engines with the rudder hard to one side，if on a twin-screw vesselB.Back down with the rudder hard to one side，if on a single-screw vesselC.Take advantage of the tendency to back to port，if on a twin-screw vesselD.Turn so that the tendency to back into the wind can be used，if on a single-screw vessel
考题
On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put ______．A.full aheadB.full asternC.half aheadD.slow astern
考题
材料：During the morning of 2 August 1999 the supply vessel Putford Worker was working cargo at installations in the North Sea. She had completed operations at one installation without incident．At 1110 she approached the second installation and carried out precautionary engine and steering tests．These were satisfactory，and at 1115 the vessel was in position to work cargo．The master was on the bridge at the joystick control；the weather was fine and the sea calm． The first lift was a 10 x 8 container．The deck crew attached the hook of the installations crane to the container，and moved forward to a safe position．The master then noticed that the vessel was moving forward out of position and moved the joystick to counteract the ahead movement．He then saw that the port propeller was indicating full ahead pitch，so changed from joystick to manual pitch controls and promptly put them to full astern．This did not prevent the vessel moving ahead so far that the attached container be dragged over the stern and into the sea. Placing the manual pitch controls to zero then caused both propellers to return to neutral．Control of the vessel was regained，and the problem did not immediately re-occur．Later tests and inspections by specialist control engineers and the propeller manufacturers showed no fault with the control systems or the port propeller．However，some wear was found in the feedback linkages on the control system of the starboard propeller．This was rectified，and manoeuvring tests completed satisfactorily．问题：In this passage the supply vessel is ________．A.one that supplies fuel oils to other deep sea vesselsB.one that supplies stores to other deep sea vesselsC.a tug boatD.smaller container vesselThe joystick is a device ________．A.controlling ruddersB.controlling shore cranesC.controlling the operation of cargoesD.controlling the propellersOn noticing that the vessel was moving forward out of position，the master ________．A.moved the joystick forward to go together with the ahead movementB.moved the shore crane to go aftwardC.made the container move aftward by operating the joystickD.operated the joystick to control the vessel and move her aftwardIt is clearly demonstrated that ________．A.the testing of engines and steering before working cargo at an installation is an important precautionB.the testing of engines and steering before working cargo at an installation was not followed by Putford WorkerC.there is no value of moving the deck crew clear once a lift is attachedD.had the deck crew not bothered to move clear from，the consequences could have been avoided请帮忙给出每个问题的正确答案和分析，谢谢！
考题
Flanking rudders effect a vessel’s heading because of the ______.A.effect of the propeller flow on the ruddersB.water flow due to the vessel’s movement through the waterC.tunnel affect of the water flow past opposing ruddersD.discharge current being channeled to impinge on the vessel’s deadwood
考题
单选题A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?（）.A
When dead in the water，it is often difficult to find the neutral position and slight headway or sternway may resultB
When going directly from full ahead to full astern，there is complete steering controlC
When the vessel has headway and the propeller is in neutral，there is no effect on rudder controlD
When maneuvering in port，full ahead or astern power can usually be obtained without changing shaft RPM
考题
单选题In any case the draught of the vessel at the（）shall not be less than that which is necessary to obtain full immersion of the propeller.A
forward perpendicularB
amidshipsC
longitudinal center of floatationD
after perpendicular
考题
单选题On a single-screw vessel the stern frame（）.A
furnishes support to the rudder，propeller shaft，and transom frameB
provides foundations for after mooring winchesC
provides foundations for the main propulsion enginesD
transfers the driving force of the propeller to the hull
考题
单选题A twin-screw vessel is easier to maneuver than a single-screw vessel because the twin-screw vessel（）.A
permits the rudder to move fasterB
generates more powerC
can turn without using her rudderD
can suck the water away from the rudder
考题
单选题A single-screw vessel going ahead tends to turn more rapidly to port because of propeller（）.A
discharge currentB
suction currentC
sidewise forceD
thrust
考题
单选题In twin-screw engine installations while going ahead，maneuvering qualities are most effective when the tops of the propeller blades both turn（）.A
to starboardB
outboard from the centerC
to portD
inboard toward the center
考题
单选题The vessel cleared the port means（）.A
the vessel left the port properlyB
the vessel was clear of the port shortlyC
the vessel departed from the port slowlyD
the vessel was clear out the port suddenly
考题
单选题The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE?（）A
The boat should be hoisted a few inches clear of the cradle before cranking out the davitsB
The inboard gripes should be cast off before the outboard gripesC
The outboard section of the cradle must be releasedD
The tricing pendants will automatically bring the boat alongside at the embarkation deck
考题
单选题Sidewise force of the propeller tends to throw a vessel’s stern to the right or left，depending on rotation. This force is caused by（）.A
back current from the rudderB
greater pressure on the right or left side of the propeller，depending on rotationC
lower pressure on the right or left side of the propeller，depending on rotationD
torque from the velocity and angle at which the surrounding water impinges upon the propeller blades
考题
单选题Flanking rudders effect a vessel’s heading because of the（）.A
effect of the propeller flow on the ruddersB
water flow due to the vessel's movement through the waterC
tunnel affect of the water flow past opposing ruddersD
discharge current being channeled to impinge on the vessel's deadwood
考题
单选题The BEST way to steer a twin-screw vessel if you lose your rudder is by using（）.A
one engine and a steering oarB
both engines at the same speedC
one engine at a timeD
one engine running at reduced speed and controlling the vessel with the other
考题
单选题The sea painter of a rescue boat should be led（）.A
forward and outboard of all obstructionsB
forward and inboard of all obstructionsC
up and down from the main deckD
to the foremost point on the vessel
考题
单选题A fishing vessel is approaching a vessel not under command. Which statement is TRUE? （）A
The fishing vessel must keep clear of the vessel not under commandB
If the vessel not under command is a power-driven vessel，she must keep clear of the fishing vesselC
They must exchange whistle signalsD
Both vessels are required to take action to stay clear of each other
考题
单选题The rule state that a vessel overtaking another vessel is relieved of her duty to keep clear when（）.A
she is forward of the other vessel’s beamB
the overtaking situation become crossing situationC
She is past and clear of the other vesselD
the other vessel is no longer in sight
考题
单选题The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within（）.A
the distance of visibilityB
1/2 the distance of visibilityC
a distance appropriate to the existing circumstances and conditionsD
the distance that it would require for the propeller to go from full ahead to full astern
考题
单选题When turning a ship in restricted space with a strong wind，it is normally best to（）.A
Go ahead on both engines with the rudder hard to one side，if on a twin-screw vesselB
Back down with the rudder hard to one side，if on a single-screw vesselC
Take advantage of the tendency to back to port，if on a twin-screw vesselD
Turn so that the tendency to back into the wind can be used，if on a single-screw vessel
考题
单选题On a vessel with a single propeller，transverse force has the most effect on the vessel when the engine is put（）.A
full aheadB
full asternC
half aheadD
slow astern
考题
单选题At night，if you see a vessel ahead displaying the lights shown you should（）.A
provide assistance as the vessel is in distressB
stay clear as the vessel is transferring dangerous cargoC
stay clear as the vessel is fishingD
change course to the right as the vessel is crossing your bow
考题
单选题If you hear the firing of a gun at one minute intervals from another vessel，this indicates that（）.A
the gun is being used to sound passing signalsB
the vessel is in distressC
all vessels are to clear the areaD
all is clear and it is safe to pass
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