网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
The most common type of davit found on merchant vessels today is the ______．
A.Radial
B.Sheath-screw
C.Gravity
D.Quadrantal
参考答案
更多 “ The most common type of davit found on merchant vessels today is the ______．A.RadialB.Sheath-screwC.GravityD.Quadrantal ” 相关考题
考题
The type of installation “________” is selected by most users, the sof1be installed with the most common options.A.TypicalB.CompleteC.CustomD.Minimum
考题
Radio, telephone and press ____ of conveying news and information.
A.are the most three common meansB.are the most common three meansC.are the three most common meansD.are three the most common means
考题
today free education provided by the irish government covers all public universities，as is common in most of the countries of europe. ()
考题
The SOLAS Convention in its successive forms is generally regarded as the most important of all international treaties concerning the ______of merchant ships.A.pollutionB.economizationC.safetyD.efficiency
考题
The type of installation“(71)”is selected by most users, the software installed with the most common options.A．TypicalB．CompleteC．CustomD．Minimum
考题
The most common type of containment device for spilled oil on the water is the use of _____.A.strawB.boomsC.skimmersD.chemical dispersants
考题
There is a ______ when one or more vessels are towing or pushing another vessel or vessels，provided that they are all involved in commercial activities and not in a salvage operation．A.private safetyB.private maritime adventureC.common safetyD.common maritime adventure
考题
Which davit type may be operated by one man ________．A.QuadrantalB.GravityC.Sheath-screwD.Radial
考题
Which statement about tunnel bow thrusters fitted to large vessels is TRUE ________．A.They are effective on most vessels at speeds up to 10 knotsB.Because of their location，most modern installations have as much power as a tugC.They are fully effective at all draftsD.When going astern at slow speed，they provide effective steering control
考题
Which type of davit is not considered to be a mechanical davit ________．A.Sheath-screw boomB.RadialC.CrescentD.Quadrantal
考题
Most propellers on merchant vessels are constructed of______．A.manganese bronzeB.cast ironC.mild steelD.improved plow steel
考题
单选题（）are increasingly used as main engine on merchant vessels, because they have a high Hp/Weight ratio.A
Slow speed diesel enginesB
Medium-speed diesel enginesC
Steam enginesD
Gasoline engines
考题
单选题Fire extinguishers on inspected vessels are numbered by size I through V，with I being（）.A
used for electrical fires onlyB
the smallestC
the most accessibleD
the most effective
考题
单选题On which type davit does the davit head stay at the same height?（）A
RadialB
Sheath-screwC
QuadrantalD
Gravity
考题
单选题The boat is stowed on the davit rather than on a cradle with which type of davit?（）A
CrescentB
Sheath-screw boomC
QuadrantalD
Radial
考题
单选题The type of davit on which you must turn a crank in order to swing the lifeboat out over the ship’s side is a（）.A
sheath-screw davitB
gravity davitC
radial davitD
bruckner davit
考题
单选题Radio, television and press are ______ of conveying news and information.A
the most three common means B
the most common three meansC
the three most common means D
three the most common means
考题
单选题（） can be found on most medium to large merchant vessels even if the main engine is either a steam turbine or 2-stroke crosshead engine.A
The medium speed 4-stroke trunk piston engineB
The low speed 2-stroke crosshead engineC
The medium speed 2-stroke crosshead engineD
The low speed 4-stroke trunk piston engine
考题
单选题Fire detecting systems on merchant vessels may be arranged to sense （）.A
smokeB
rate of temperature riseC
ionized particlesD
all of the above
考题
单选题The most common type of containment device for spilled oil on the water is the use of （）.A
strawB
boomsC
skimmersD
chemical dispersants
考题
单选题The reason why more and more of the large merchant vessels are being powered by medium-speed diesel engines is （）.A
they operate between 150 and 450 rpmB
they are connected to the propeller by gearingC
their smaller size and weightD
they can be connected directly to the propeller without gearing
考题
单选题On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.A
hydraulicB
electricC
steamD
diesel
考题
单选题The most common type of AC service generator found aboard ship is the stationary （）.A
electromagnetic field, revolving armature typeB
electromagnetic field, oscillatory armature typeC
armature, oscillatory electromagnet field typeD
armature, rotating electromagnetic field type
考题
单选题Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE? （）A
CSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedenceB
The CSS must be established by mutual agreement between the ships concernedC
A tank vessel should never be assigned CSS duties unless only tank vessels are presentD
The first vessel to arrive at the distress incident is designated as the CSS
考题
单选题Most propellers on merchant vessels are constructed of（）.A
managanese bronzeB
cast ironC
mild steelD
improved plow steel
考题
单选题Aboard damaged vessels，the MOST important consideration is preserving（）.A
bilge pumping capacityB
reserve buoyancyC
level attitudeD
instability
热门标签
最新试卷