中华人民共和国海事局2004年第3期海船船员适任证书全国统考试题(总第35期) 科目：轮机英语 试卷代号：804适用对象：近洋航区750—3000KW及以上船舶大管轮（本试卷卷面总分100分，及格分为70分，考试时间为100分钟） 答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑第1题至68题，每题1分，第69题至76题，每题1.5分,第77题至78题, 每题10分一、单项选择题：1. ______ power is the power developed within the cylinder and can be measured by an engine indicator. A. The shaft B. The mechanical C. The electric D. The indicated 2. A main bearing consists of two shells which are secured by means of studs and______. A. tie rods B. through bolts C. lead wires D. bearing caps 3. Acid solution______ in the system can be tested from time to time by putting some on to a piece of lime. A. strength B. dense C. percentage D. velocity 4. Which of the following statements is correct concerning the 'flash point' of a liquid? A. It is lower than the ignition temperature B. It is the temperature at which a substance will spontaneously ignite C. It is the temperature at which a substance, when ignited, will continue to burn D. It is the temperature at which the released vapors will fall within the explosive range 5. The amount of lubricating oil in the drain tank should be checked by ______. A. measuring B. sounding rod C. metering D. weighting 6. Although lube oils used in the main lubricating service systems should have a relatively high flash point to avoid ignition, they can create smoke and fire hazards when they______. A. are exposed to a vacuum B. come in contact with extremely hot surfaces C. are reduced in temperature to just above the pour point D. become extremely agitated or aerated 7. The centrifuge, filters and______ are used to clean fuel oil. A. balance tank B. storage tank C. service tank D. settling tank 8. The engine should be turned by______, before it is started. A. turning gear B. steering gear C. regulating gear D. a motor 9. V.I.T. means______. A. variable injection timing B. variable inlet tonnage C. vertical incoming tonnage D. vertical inlet tank 10. The difference between a supercharged engine and an un-supercharged engine is that______ operates at an increased pressure. A. the later B. the latter C. the former D. the farmer 11. A sealing arrangement is provided at______ of the tail-shaft with the propeller and cone completing the arrangement. A. both ends B. neither end C. the outboard end D. either end 12. A propeller of 5.65m in diameter, having a mean pitch of 4.88m, turning at 72rpm, at a speed of 11 knots (339.79m/min), will give ______of apparent slip. A. 0.967 B. 0.033 C. 0.031 D. 0.969 13. Which of the bearings listed are most widely used for the main and connecting rod bearings of a diesel engine? A. Roller bearings B. Sleeve bearings C. Sliding bearings D. Needle bearings 14. Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially ______. A. increase B. decrease C. fluctuate D. remain constant 15. When shipd are in port, it is the time when opportunity ______to carry out the routine maintenance and inspection of the working parts of the machinery. A. occurs B. discovers C. looks for D. finds 16. A reduction in load on a diesel engine results in ______of speed of the crankshaft. A. a reduction B. an increase C. an outing D. a downwards 17. The lube oil pump used in a diesel engine is a ______. A. volute pump B. centrifugal pump C. diaphragm pump D. gear pump 18. Some pumps use packing as sealing gland. The gland should be ______. A. slack enough to allow slight leakage of fluid B. slightly clocked C. brought up tight so as not to allow any leakage D. fitted with a relief valve 19. If a bilge pump is able to develop vacuum, but is unable to sufficiently pump out the bilges, you would check for all of the following EXCEPT ______. A. the circuit breaker B. for leaks in the suction piping C. relief valve is not properly seated D. the suction strainer 20. If an operating auxiliary boiler has a water pH reading of 7, you should ______. A. bottom blow the boiler B. treat the water with caustic soda C. treat the water with chemical scavengers D. reduce the water alkalinity to recommended readings 21. When steam is being raised on a boiler, the water level will normally ______. A. drop as the boiler warms up B. rise as the boiler warms up C. remain unchanged until the boiler is hot enough D. rise and fall with the steam demand 22. Because of the high loads the bearing material is a tin-aluminum a。
