考题
You may BEST turn a twin-screw vessel about,to the right,in a narrow channel by using ______.A.Both engines ahead and helmB.One engine onlyC.Port engine ahead and the starboard engine asternD.Both engines astern and use helm
考题
A vessel fitted with twin screws is easier in ______ than a vessel with single screw.A.turning maneuverB.course settingC.position fixingD.regulating speed
考题
A schooner is a fore-and-aft rigged vessel with ______.A.a single mastB.two masts: with the mizzen stepped abaft the rudder postC.two masts: with the mizzen stepped forward of the rudder postD.at least two masts: a foremast and a mainmast
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
You are doing a Williamson turn.Your vessel has swung about 60° from the original course heading.You should ______.A.Put the rudder amidships and check the swingB.Stop the engines and prepare to maneuver to pick up the man in the waterC.Shift your rudderD.Increase to maximum speed
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
A twin screw vessel, making headway with both engines turning ahead, will turn more readily to starboard if you ______.A.reverse port engine, apply right rudderB.reverse port engine, rudder amidshipsC.reverse starboard engine, apply right rudderD.reverse starboard engine, rudder amidships
考题
A vessel is equipped with a single right-handed screw.With rudder amidships and calm wind, the vessel will most likely back ______.A.straight asternB.to portC.to starboardD.in no particular direction
考题
In order to back a right-handed, single-screw vessel in a straight line, you will probably need to use ______.A.very little rudderB.some left rudderC.some right rudderD.full left rudder
考题
Leeway is the ______.A.difference between the true course and the compass courseB.momentum of a vessel after her engines have been stoppedC.lateral movement of a vessel downwind of her intended courseD.displacement of a vessel multiplied by her speed
考题
单选题The distance that a vessel travels from the time that the order to put engines full astern until the vessel is dead in the water is known as().A
advanceB
head reachC
surgeD
transfer
考题
单选题Generally,you can best keep a vessel under steering control when the vessel has().A
HeadwayB
SternwayC
No way on,with engines stoppedD
No way on,with engines full ahead
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 vessel fitted with twin screws is easier in()than a vessel with single screw.A
turning maneuverB
course settingC
position fixingD
regulating speed
考题
单选题In stopping distances of vessels,head reach can best be described as the().A
difference between the vessel's speed through the water at any instant and the new speed ordered on the telegraphB
distance the vessel has actually run through the water since a change of speed was orderedC
distance the vessel will run between taking action to stop her and being stationary in the waterD
speed at which a vessel should proceed to ensure that she will run a predetermined distance,once her engines have been stopped
考题
单选题When the vessel on the full speed ahead, if full astern immediately () the main engine start astern and fuel injection.A
after the thrust power is zeroB
after the torsion is zeroC
surpass the critical point on the water turbo phaseD
after the speed is zero
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A schooner is a fore-and-aft rigged vessel with().A
a single mastB
two masts: with the mizzen stepped abaft the rudder postC
two masts: with the mizzen stepped forward of the rudder postD
at least two masts: a foremast and a mainmast
考题
单选题On a vessel,if someone fell overboard and you did not know over which side the person fell,you should().A
immediately reverse the enginesB
stop the propellers from turning and throw a ring buoy over the sideC
increase speed to full to get the vessel away from the personD
first put the rudder hard over in either direction
考题
单选题A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind,the vessel will most likely back().A
straight asternB
to portC
to starboardD
in no particular direction
考题
单选题A twin screw vessel,making headway with both engines turning ahead,will turn more readily to starboard if you().A
reverse port engine,apply right rudderB
reverse port engine,rudder amidshipsC
reverse starboard engine,apply right rudderD
reverse starboard engine,rudder amidships
考题
单选题The common rail engines show great advantages in combustion especially().A
at high speed and full loadB
at low speed and part loadC
when heavy fuel oil is used at seaD
when the ships run long distance
考题
单选题A twin-screw vessel with a single rudder is making headway. The engines are full speed ahead. There is no wind or current. Which statement is FALSE?().A
If one screw is stopped,the ship will turn toward the side of the stopped screwB
The principal force which turns the ship is set up by the wake against the forward side of the rudderC
Turning response by use of the rudder only is greater than on a single-screw vesselD
With the rudder amidships,the ship will steer a fairly steady course
考题
单选题The crankshafts of medium speed engines are almost invariably solid () from a single piece of steel.A
forgedB
castC
madeD
shrunk
考题
单选题Leeway is the().A
difference between the true course and the compass courseB
momentum of a vessel after her engines have been stoppedC
lateral movement of a vessel downwind of her intended courseD
displa ement of a vessel multiplied by her speed
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 twin-screw,twin-rudder vessel,the most effective way to turn in your own water,with no way on,is to put().A
one engine ahead and one engine astern,with full rudderB
one engine ahead and one engine astern,with rudders amidshipsC
both engines ahead,with full rudderD
both engines astern,with full rudder
考题
单选题Leeway is the().A
difference between the true course and the compass courseB
momentum of a vessel after her engines have been stoppedC
lateral movement of a vessel downwind of her intended courseD
displacement of a vessel multiplied by her speed