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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 starboard
B
outboard from the center
C
to port
D
inboard toward the center
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考题
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考题
A twin-screw ship going ahead on the starboard screw only tends to move ______.A.in a straight lineB.to portC.from side to sideD.to starboard
考题
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考题
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考题
---Dead slow ahead! ---Reply: （）. ---Report: Engine dead slow ahead.A、No problemB、OKC、Dead slow aheadD、Yes
考题
单选题A twin-screw ship going ahead on the starboard screw only tends to move（）.A
in a straight lineB
to portC
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to starboard
考题
单选题While maneuvering, you discover heavy smoke coming from the turbocharger casing, you should （）A
check the air filter for dirtB
check for an exhaust leakC
check the cooling water temperatureD
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单选题---Dead slow ahead! ---Reply: （）. ---Report: Engine dead slow ahead.A
No problemB
OKC
Dead slow aheadD
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单选题While moving ahead，a twin-screw ship has an advantage over a single-screw ship because （）.A
correct trim will be obtained more easilyB
drag effect will be cancelled outC
side forces will be eliminatedD
speed will be increased
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单选题---Slow ahead! ---Slow ahead! （）!A
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单选题（） allows the engine to be placed wherever is most suitable, as they no longer have to be aligned with reduction gearing and shafting as is the case with conventional installations.A
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Diesel electric propulsionC
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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
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reverse starboard engine，apply right rudderD
reverse starboard engine，rudder amidships
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单选题After casting off moorings at a mooring buoy in calm weather，you should（）.A
go full ahead on the engine(s)B
back away a few lengths to clear the buoy and then go ahead on the enginesC
go half ahead on the engines and put the rudder hard rightD
go half ahead on the engines and pass upstream of the buoy
考题
单选题If an airplane circles a vessel 3 times，crosses the vessel’s course close ahead while rocking the wings，and heads off in a certain direction，what does this indicate（）.A
The plane is in distress and will have to ditchB
The plane is going to drop a package and wishes the vessel to recover itC
Someone is in distress in that direction and the vessel should follow and assistD
There is danger ahead and the best course is indicated by the direction of the aircraft
考题
单选题My ship’s engine responds well to telegraph orders and takes about 80 seconds to reverse from full speed ahead to full speed astern. This sentence（）.A
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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 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
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
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