【正文】 A. Hydraulic oil B. Animal oil C. Light oil D. Fuel oil 1202 _____ is the production of pure water from sea water by evaporation and recondensing 通過(guò)蒸發(fā)和再冷凝，由海水產(chǎn)生淡水的過(guò)程稱為“蒸餾”。 A. cargo crane B. jib C. safe working load D. oil pressure 1196 D 1197 C 1198 B 1199 C 1200 B 1200 _____ play a very important part in hydraulic systems by preventing int6raction between different parts of the hydraulic circuit. 在液壓系統(tǒng)中，單向閥起很重要的作用，它能防止液壓油路中不同部件之間相互影響。 A. the slewing motor B. the luffing motor C. the hoisting motor D. none of the above 1198 When the union purchase derrick is operated, one derrick is positioned over the quayside and the other almost vertically over the _____ 在吊桿式起貨機(jī)中，一根吊桿位于碼頭上方，另一根幾乎垂直地位于貨艙的上方。 A. the slewing motor B. the luffing motor C. the hoisting motor D. none of the above 1196 The crane is usually mounted on a pedestal to offer adequate _____ to the operator. 回轉(zhuǎn)式起貨機(jī) (克令吊 )一般安裝在平臺(tái)上，確保向操作者提供足夠的視野。當(dāng)驅(qū)動(dòng)壓力釋放后，負(fù)荷將會(huì)引起柱塞桿收進(jìn)。 A. the slewing motor B. the luffing motor C. the hoisting motor D. none of the above 1193 Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion? 在液壓系統(tǒng)中，液壓油缸將液壓能轉(zhuǎn)變?yōu)橹木€性運(yùn)動(dòng)。 A. Relief valve B. Direction control valve C. Stop valve D. Pressure control valve 1186 A 1187 D 1188 D 1189 A 1190 B 1191 External and internal leakage in hydraulic systems may be caused by _____ 異常振動(dòng)、部件過(guò)度磨損、油壓異常等都會(huì)引起液壓系統(tǒng)內(nèi)外泄露。 A. Relief valves B. Check valves C. Safety valves D. Reducing valve 1189 The rotor of the hydraulic motor rotates at a speed proportional to the _____ 液壓馬達(dá)轉(zhuǎn)子的回轉(zhuǎn)速度與油量有關(guān)，而與油壓無(wú)關(guān)。 A. The hydraulic pumps B. Valves C. Hydraulic cylinders D. Hydraulic motors l 187 Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion.? 在液壓系統(tǒng)中，液壓馬達(dá)將液壓能轉(zhuǎn)變?yōu)槌掷m(xù)的回轉(zhuǎn)運(yùn)動(dòng)。 A. Cargo winches B. Mooring winches C. Windlasses D. Cargo hatches 1185 The drive motor will have a brake arranged to failsafe, . it will _____ the load if power fails or machine is stopped. ． 見第 1183題。 A. Cargo winches B. Mooring winches C. Windlasses D. Cargo hatches 1183 The drive motor will have a brake an~nged to failsafe, . it will _____ the load if power fails or machine is ，當(dāng)失電時(shí)它能支住貨物。 A. Cranes B. Mooring winches C. Windlasses D. Foreman 1176 B 1177 A 1178 D 1179 C 1180 A 1181 Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?在液壓系統(tǒng)中，液壓閥可實(shí)現(xiàn)對(duì)液壓能的控制。 A. an electric motor B. a diesel engine C. a pressor D. oil 1179 In a hydraulic system , _____ are used to protect the system from over pressure. 在液壓系統(tǒng)中，安全閥用來(lái)防止系統(tǒng)超壓。 A. with dirty water B. with clean water C. by oily water D. by mixed water 1177 A high rate of separation between oil and water is favored by _____ 油滴尺寸大，將有助于油、水分離。 A. bowl periphery B. bowl center C. upper surface D. lower surface 1175 In an oily water separator the oil will travel _____ to the oil collecting spaces. 在油水分離器中，油是向上運(yùn)動(dòng)到集油室的。 A. purifying B. batch C. long period D. temporary 1173 For a purifier, changing to a gravity disc with larger hole diameter will move the interface towards the ___對(duì)于分水機(jī)，使用較大直徑的比重環(huán)，油水界面會(huì)向分離筒四周移動(dòng)。 A. center B. periphery C. inlet D. upper parts 1172 For many years marine centrifuges were designed for _____ operation, that is the machines were run for a period during which solids accumulated in the bowl. The machine was stopped when the accumulated solids began to impair its performance. 很多年以來(lái)，離心式分油機(jī)被設(shè)計(jì)成分批運(yùn)行。 A. an oily water separator B. a purifier C. a centrifugal pressor D. a clarifier 1170 A centrifuge arranged to separate impurities and small amounts of water from oil is known as ____離心式分油機(jī)設(shè)計(jì)用來(lái)分離油中的雜質(zhì)和少量水時(shí)，被稱為分雜機(jī)。 A. rather than B. other than C. in addition that D. except for 1168 Emulsification of oil will occur when mixed with ___油與水混合后會(huì)產(chǎn)生乳化。 A. ballast water B. boiler water C. bilge water D. sewage water 1167 The bilge main is mamlged to drain any watertight partment _____ ballast, oil or water tanks and to discharge the contents overboard. 艙底水總管設(shè)計(jì)用來(lái)排放除了壓載艙、燃油艙和水艙之外的任何水密空間的污水到 舷外。 A. Boiler B. Incinerator C. Oily water separator D. Sewage treatment unit 1161 D 1162 D 1163 B 1164 A 1165 C 1166 Oil water separators are used to ensure that ships don39。 A. many thousand times larger than B. the same as C. many thousand times smaller D. none of the above 1165 _____ are used to ensure that ships don39。 A. ① and ② B. ① and ③ C. ② and ③ D. ① ② and ③ 1163 The separation of impurities and water from _____ is essential for good bustion of diesel ，這對(duì)柴油機(jī)發(fā)火燃燒很重要。 ② tube failure。這是因?yàn)殄仩t水是水和汽 泡的混合物 (水位表本身上端通汽下端通水 )，向鍋爐供水后，等汽泡凝結(jié)，水位反而下降。 A. swell B. shrinkage C. flash off D. lack of water 1160 A dazzling white burner flame in the boiler furnace indicates _____ A. no bustion B. deposits in the fuel見第 1157題。 A. Water Head Register B. Water Heater Recirculating