【正文】 置一起使用時(shí)，中速柴油機(jī)應(yīng)該在傳動(dòng)端用裝配螺栓與底座連在一起，而在其它地方則用間隙螺栓固定，這樣可使柴油機(jī)熱膨脹時(shí)留有膨脹余地。 16 In using reduction gears to obtain efficient propeller speeds, ________. they must be located at the after end of the engine they can only be used with one engine at a time they eliminate the need for controllable pitch propellers they are connected to the engine with a flexible coupling D 減速齒輪與發(fā)動(dòng)機(jī)采用柔性聯(lián)軸節(jié)連接。18 The minimum speed an engine must attain before ignition can occur depends upon ________. the type and size of the engine the condition of the engine ambient temperature all of the above D 發(fā)動(dòng)機(jī)發(fā)火之前必須獲得的最低轉(zhuǎn)速取決于發(fā)動(dòng)機(jī)的類型和尺寸、發(fā)動(dòng)機(jī)的狀態(tài)和環(huán)境溫度等因素。20 Diesel engines are classified as reciprocating internal bustion engines because they ________. use energy from fuel burned outside their cylinders burn fuel in a bustion chamber that moves back and forth burn fuel in a chamber where its energy moves a piston back and forth use a continuous bustion process to impart rotary motion to the pistons C 把柴油機(jī)歸類于往復(fù)式內(nèi)燃機(jī)，是因?yàn)槿加驮谌紵覂?nèi)被燃燒，產(chǎn)生能量使活塞作往復(fù)運(yùn)動(dòng)。22 The thermal energy produced by an internal bustion engine is transformed into ________. bustion energy internal energy external energy mechanical energy D 內(nèi)燃機(jī)產(chǎn)生的熱能轉(zhuǎn)換成機(jī)械能。24 As a heat engine, ________ energy is the source of power by which the diesel engine can be operated. electric heat mechanical exhaust B 柴油機(jī)作為熱機(jī)，熱能是其功率的來源。26 ________ system is arranged to ensure that water can be drawn from any tank or the sea and discharged to any other tank or the sea as required to trim the vessel. The domestic water Bilge water Oil transfer The ballast D 壓載水系統(tǒng)用來確保能從任一個(gè)艙或海中吸入海水，也能將水排到任一艙或海中，達(dá)到平衡船舶之目的。28 Each cylinder liner on the marine medium speed engines ________. is usually cooled by sea water can be replaced when worn out is in direct contact with the water in the bore of the cylinder can39。29 Energy losses due to ________ occur in every machine. speed friction impact atmosphere B 由于磨擦造成的能量損失在每一臺(tái)機(jī)器都存在。W, 2stroke cycle, single acting direct reversible, crosshead, welding design type diesel engine with turbocharge, these information refers to ________. the type of a pump the type of a turbocharge the type of an accessory equipment the type of a main engine D 日立Bamp。31 If the buoyant force on a ship39?！癰uoyant force、displacement tonnage”意為“浮力、排水量噸位”32 The stability of a vessel is normally the greatest when all fuel and water tanks are full because the ________. center of gravity is lowered center of buoyancy is lowered reserve buoyancy is unchanged hull freeboard is increased A 當(dāng)所有水艙和燃油艙都注滿時(shí)，由于重心降低，船舶的穩(wěn)性最好。“as long as…”意為“只要…”34 Wake varies considerably with the form of the vessel, but, generally speaking, the bluffer the ship ________ the wake value. the higher the lower the faster the slower A 船舶產(chǎn)生的伴流與船舶形態(tài)有很大關(guān)系。“wake”意為“【船】伴流，尾流，航跡”；“bluff”意為“船頭平闊而垂直的，肥滿線形的，非流線型的”35 In moving forward, a ship imparts forward motion to the water at the sterns this is known as ________. the speed of the vessel the speed of the propeller the wake the wake fraction C 船舶前進(jìn)時(shí)，帶動(dòng)艉部的水產(chǎn)生向前運(yùn)動(dòng)，這就是所謂的“伴流”。“even if”意為“即使”。38 Medium speed engines have a ________ power to weight ratio than the slow speed two strokes, but due to the higher speeds tend to have ________ maintenance intervals. higher / reduced higher / increased lower / reduced lower / increased A 中速機(jī)與低速二沖程機(jī)相比有較高的功率/重量比，但也因其高速使得維修間隔縮短。40 The diesel engine is similar to the gasoline engine in that ________. both of them are ignited by pressed air both of them are the forms of external bustion engines both of them have spark plugs the power is developed by the piston in the cylinder D 柴油機(jī)和汽油機(jī)的相似點(diǎn)在于都使用活塞傳遞功率。42 Gas turbines differ from steam turbines in that ________. steam rather than gas is used to turn a shaft vapor rather than gas is used to turn a shaft the former uses gas to turn a shaft the latter uses gas to turn a shaft C 燃?xì)鉁u輪和蒸汽渦輪區(qū)別在于前者使用燃?xì)怛?qū)動(dòng)轉(zhuǎn)軸。44 The additional mark ________ in the Classification Certificate for Machinery represents the propulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel. BRC MCC AUT0 AUT1 A 船級(jí)證書中對(duì)于機(jī)械設(shè)備的附加標(biāo)志BRC，代表了推進(jìn)裝置可以由駕駛臺(tái)遠(yuǎn)程控制，機(jī)艙由輪機(jī)值班人員負(fù)責(zé)當(dāng)班。46 The additional mark ________ in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is watched by duty personnel. BRC MCC AUT0 AUT1 D 船級(jí)證書中對(duì)于機(jī)械設(shè)備的附加標(biāo)志AUT1，代表了推進(jìn)裝置由駕駛臺(tái)遠(yuǎn)控，輪機(jī)人員集控室值班（至少有一人）。48 (Piston area)(Piston stroke)(numbers of the cylinders)=engine ________. brake horsepower displacement cylinder volume cylinder clearance B 活塞面積活塞沖程氣缸數(shù)＝發(fā)動(dòng)機(jī)排量49 The depth of fuel oil in a tank is normally measured through the ________. vent line overflow line feed line sounding tube D 油艙深度通過測(cè)深管來測(cè)量。Torsional vibration damper：扭振減震器51 Critical speed in diesel engines occurs when engine torque pulsations bee ________. opposed to the crankshaft rocking couple resonant with the crankshaft natural frequency critical fore and aft crankshaft vibrations horizontal whipping motions of the crankshaft B 臨界轉(zhuǎn)速時(shí)柴油機(jī)的轉(zhuǎn)矩波動(dòng)和曲軸的自然頻率發(fā)生共振。在大多數(shù)減速箱中，從動(dòng)齒輪是和螺旋槳軸相連的。這可以通過超級(jí)燃燒來實(shí)現(xiàn)。省卻了凸輪軸，控制更加方便55 ________ is used for washing and drinking. The ballast system The salt water system The bilge system The domestic system D 船舶日用水系統(tǒng)提供盥洗水和飲用水。57 The development goals for a large marine engine are many often interact and in some cases even ________ with each other conflict accord harmonize struggle A 大型船舶發(fā)動(dòng)機(jī)的發(fā)展目標(biāo)往往是相互相成，有時(shí)甚至是相互沖突。abbreviation：, 縮寫詞59 Marine fourstroke diesel engines are mainly ________. of crosshead type of trunk piston type of low speed type all the above B 極大多數(shù)船用四沖程柴油機(jī)屬于筒狀活塞式。船體污染大大增加了船舶的阻力。62 Propulsion of the vast majority of contemporary merchant ship (especially containerships and VLCCs) utilizes ________ as prime mover. gas turbine diesel engine steam engine gasoline engine B 當(dāng)代大多數(shù)商船（特別是集裝箱船和超大型油輪）都采用柴油機(jī)作為推進(jìn)船舶的原動(dòng)機(jī)。64 With ________, the engine