《轮机英语》题库新题目练习.docVIP

《轮机英语》题库新题目练习 2251.The data to be recorded on this sheet _____ the performance of the engine. A. makes the experts to judge B. enables the experts to judge C. make the experts judging D. enable the experts to judge 此表所记录的数据能够使专家判断出发动机的操作性能 2252.Cooling _____ the engine metals retain their mechanical properties. A. forces B. enables C. makes D. is able to 冷却使发动机保持机械性能。 2253. _____ that everything in the engine crankcase is correct, start up the crankcase lubricating oil pump A. To satisfy B. To be satisfied C. After satisfying D. After being satisfied 确定发动机曲轴箱一切正常后，启动润滑油汞。 2254、Hearing a strong noise, _____ at once. A . the engine stopped B. the engine was stopped C. he stopped the engine D. he had stopped the engine 引擎发出巨大响声后，应迅速关闭发动机。 2255. The two-stroke cycle begins with the piston coming up from the BDC, with the scavenging ports in the sides of the cylinders being _____. A. open B. uncover C. covered D. closed 活塞从BDC中开启后二行程循环开始，同时汽缸边上排除废气的气门也随之打开。 2256. The term “moderate speed” was previously interpreted as meaning a speed which would enable a vessel ______ within half the range of visibility. A. stopping B. being stopped C. to stop D. to be stopped “平均速度”过去被解释为停止在轮船视野一半的速度。 2257. Hardly had the engine started ______ the temperature of the cooling water suddenly rose up to 40℃. A. then B. than C. when D. after 当温度突然升至40度时，引擎开启。 2258. ______ during the last repair? A. Did you have No.4 cylinder repair B. Do you have No.4 cylinder repaired C. Didn’t you have No.4 cylinder repairing D. Didn’t you have No.4 cylinder repaired 难道最近你没有修理4号汽缸吗？ 2259.The main engine is cooled with fresh water ______ is added suitable small quantities of chemicals to prevent corrosion. A. in which B. on which C. to which D. by which 引擎的主要部分由淡水冷却，是为了加入少量的化学成分以防止腐蚀。 2260、. The exhaust ports are located around the lower part of the cylinder liner, ______ the products of combustion are driven by scavenging air. A. in which B. by which C. through which D. from w