【正文】 steam demand 1142 The donkey boiler may be given a bottom blow _____鍋爐熄火后，可進行下排污。 A. yellowish flame B. golden yellow flame C. milky flame D. brilliant white flame 1158 . R stands for _____ WHR代表廢熱回收裝置。 otherthan=except。 A. hydraulic pumps B. valves C. hydraulic cylinders D. hydraulic motors 1182 _____ are used to handle anchors and 。 A. time B. space C. length D. visibility 1197 In a general cargo crane, _____ is fitted to lift the cargo load. 在回轉式起貨機 (克令吊 )中，提升裝置用于裝卸貨物。 A. Hydraulic pumps B. Valves C. Hydraulic cylinders D. Hydraulic motors 1194 The single acting cylinder is the simplest form where pressure is applied to the full area of the piston head to move the load through piston rod extension. The load causes rod _____ when the drive pressure is ，壓力作用于整個柱塞頭部，通過柱塞桿的伸展傳遞負荷。 A. large size of oil globule B. low temperature C. high viscosity D. high flow rate 1178 A hydraulic motor may be driven by _____液壓馬達是由油來驅動的。t discharge oil when pumping out oily water from any oil contaminated space. 船舶上的油水分離器能保證船舶排放艙底水等污水時不排油。 A. physical state B. temperature C. atmospheric pressure D. sensible pressure 1155 The amount of heat released by steam when it changes to water at the same temperature is called ___在同樣的溫度下，蒸汽變成水時所釋放的熱量，稱為冷凝潛熱。 A. watertube B. firetube C. exhaust gas D. None of the above is tree. 1139 _____ are mounted in pairs to protect the boiler against overpressure. 鍋爐安裝安全閥以防鍋爐超壓。 A. Volute pump B. Diffuser pump C. Regenerative pump D. All of the above 1127 Some pumps use packing as sealing gland. The gland should be ______ 一些泵使用填料作為密封格蘭，注意要少許松一點，讓液體稍微泄漏。 A. discharges into a gradually widening channel B. has stationary diffuser vanes C. produces no kiic energy D. All of the above are true. 1119 In _______ pumps a closed discharge valve will cause bursting discharge pressure. 柱塞泵是容積式泵，排出閥關閉將會產生具有破壞性的壓力。 ② rotary。 A. reciprocating pump B. positive displacement pump C. centrifugal pump D. centripetal pump 1091 Through a _______ pump, the liquid is transferred from the suction to the discharge by the mechanical variation of the volume of a chamber or chambers. 對于容積式泵，液體通過泵腔室體積的改變從吸入口排至排出口。 A. throttling the pressure line B. changing the speed of the rotor C. either A or B D. None of the above is true. 1104 The amount of fluid delivered by a reciprocating pump can be regulated by ______ 往復泵屬于容積式泵，排量通過改變柱塞的速度來調節(jié)。 A. to fill 2 tanks at the same time B. to use pump at a higher pressure C. to return liquid to suction side if discharge valve is closed D. All of the above are true. 1111 A 1112 C 1113 B 1114 B 1115 C 1116 The pump discharge pressure will be considerably higher than the pressure at the _______泵的排出壓力比泵進口支管的壓力要高得多。 A. ① and ② B. ② and ③ C. ① and ③ D. ① ② and ③ 1125 The _______ pump discharges a nearly constant amount of liquid regardless of pressure. 不管壓力如何，容積式泵的排量幾乎恒定。 A. scaled B. cracked C. shape changed D. deformed 1136 The tube in a boiler should be blinded if found ____鍋爐管子發(fā)現(xiàn)泄露，應封死。 A. Descriptions B. Discrepancies C. Different D. Deflections 1146 A 1147 C 1148 B 1149 B 1150 B 1151 Impurities from the boiler water surface can be removed through the _____ 鍋爐水面的雜質可通過上排污閥清除。 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 ，這對柴油機發(fā)火燃燒很重要。 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，油是向上運動到集油室的。 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、部件過度磨損、油壓異常等都會引起液壓系統(tǒng)內外泄露。 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. 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. 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 ____離心式分油機設計用來分離油中的雜質和少量水時，被稱為分雜機。 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. feed pump suction line B. hot well C. shell of the feed heater D. feed lines to the boiler 1145 If in doubt as to the tree water level when a boiler is being oilfired, you should _____ 燒油鍋爐運行時，對真實