单选题While moving ahead，a twin-screw ship has an advantage over a single-screw ship because （）.Acorrect trim will be obtained more easilyBdrag effect will be cancelled outCside forces will be eliminatedDspeed will be increased
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 easily
B
drag effect will be cancelled out
C
side forces will be eliminated
D
speed will be increased
参考解析
解析：
暂无解析
相关考题：
A negative cost variance and positive schedule variance means:A The project is under budget and ahead of scheduleB The project is over budget and behind scheduleC The project is over budget and ahead of scheduleD The project will be overrun but ahead of schedule at completion
96 A negative cost variance and positive schedule variance means:A. The project is under budget and ahead of scheduleB. The project is over budget and behind scheduleC. The project is over budget and ahead of scheduleD. The project will be overrun but ahead of schedule at completion
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
A ship crane which has been idle for a period of over six months shall be inspected to the same standards as a ______.A.yearly inspectionB.quarterly inspectionC.monthly inspectionD.weekly inspection
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
The ______ is used when a ship is moving forward at very slow speed due to minimal water flow over the rudder and the ship is not responding to helm．A.approach speedB.bow thrustC.transverse thrustD.kick ahead
Which statement is TRUE concerning buoyant work vests aboard tankers ________．A.They may be worn while working on deck but not while working over the sideB.They must be used only under supervision of a designated ship's officerC.They will be accepted for up to 10% of the required life preserversD.They may be worn during drills
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
Which of the following is an advantage that a USB mouse has over a PS/2 mouse?（）A、A USB mouse uses less powerB、A USB mouse is more portableC、A USB mouse is hot swappableD、A USB mouse is more secure
While you are turning the windlass over slowly , （）all the moving parts.A、oilB、greaseC、oiledD、greased
单选题A twin-screw ship going ahead on the starboard screw only tends to move（）.Ain a straight lineBto portCfrom side to sideDto starboard
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（）.Ato starboardBoutboard from the centerCto portDinboard toward the center
单选题When taking a Pilot from a pilot vessel in a seaway，which way should you head your vessel if the ladder is on the leeward side（）.ABow to the sea and no way on your vesselBSea on the lee quarter with ship moving ahead slowlyCSea on the weather bow and ship moving ahead slowlyDSea on the quarter with sternway on the ship
单选题As a ship moves through the water，it causes a wake，which is also moving forward relative to the sea. In addition to a fore and aft motion，this wake also has a(n)（）.Adownward and inward flowBdownward and outward flowCupward and inward flowDupward and outward flow
单选题What is an advantage of a steam turbine over a diesel for the main propulsion?（）AFaster response from ahead to asternBLess fuel consumptionCCheaper initial installation costDLess weight per unit of horsepower
单选题When a ship is fully loaded, it needs to prevent the main engine to be（）.While a ship is fully empty, it needs to prevent the main engine to be（）.Aoverspeed；overloadBoverload；overspeedCover mechanical load；over thermal loadDover torque；overspeed
单选题A ship crane which has been idle for a period of over six months shall be inspected to the same standards as a（）.Ayearly inspectionBquarterly inspectionCmonthly inspectionDweekly inspection
单选题Which of the following is an advantage that a USB mouse has over a PS/2 mouse?（）AA USB mouse uses less powerBA USB mouse is more portableCA USB mouse is hot swappableDA USB mouse is more secure
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?（）.AIf one screw is stopped，the ship will turn toward the side of the stopped screwBThe principal force which turns the ship is set up by the wake against the forward side of the rudderCTurning response by use of the rudder only is greater than on a single-screw vesselDWith the rudder amidships，the ship will steer a fairly steady course
单选题Carbon dioxide as a fire fighting agent has which advantage over other agents?（）.AIt causes minimal damageBIt is safe for personnelCIt is cheaperDIt is most effective on a per unit basis
单选题Port of Registry refers to the port where（）.Athe ship has been namedBthe ship has been builtCthe ship has been signedDthe ship has been registered
单选题How does an icebreaker normally free a ship which has become beset while navigating independently?（）ABy backing down the track and cutting out ice on either bowBBy approaching from the stern and crossing ahead at an angle of 20°to 30°to the beset ship's courseCBy overtaking the beset ship，running ahead and then backing down the track to the beset vesselDBy approaching the vessel from astern and towing the beset vessel stern first
单选题When turning a ship in restricted space with a strong wind，it is normally best to（）.AGo ahead on both engines with the rudder hard to one side，if on a twin-screw vesselBBack down with the rudder hard to one side，if on a single-screw vesselCTake advantage of the tendency to back to port，if on a twin-screw vesselDTurn so that the tendency to back into the wind can be used，if on a single-screw vessel
单选题What advantage does Room 402 have over auditorium 2?AIt can seat more people.BIt has better technology.CIts seats are more comfortable.DIt was recently refurbished.
单选题A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n)（）.Aforward spring line and going slow ahead on the inboard engineBafter spring line and going slow astern on the outboard engineCforward spring line and going slow ahead on both enginesDforward spring line and going slow ahead on the outboard engine
单选题____ price， the newly-developed fridge has a big advantage over any other.AIn terms ofBBy means ofCOwing toDAccording to
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（）.Aone engine ahead and one engine astern，with full rudderBone engine ahead and one engine astern，with rudders amidshipsCboth engines ahead，with full rudderDboth engines astern，with full rudder