中华人民共和国海事局331

中华人民共和国海事局2001年第1期海船船员适任证书全国统考试题（总第26期）科目：轮机英语试卷代号：806适用对象：近洋航区750-3000KW船舶二/三管轮(本试卷卷面总分100分，及格分为70分，考试时间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74题，每题1分，第75题至78题，每题1．5分，第79题至80题，每题10分。

一、单项选择题1．The crankshafts of medium speed engines are almost invariably solid ___ from a single piece of steel．A．forged B．cast C．made D．shrunk2．The injector pump is operated by a cam which drives the ___ up and down．A．piston B．drum C．plunger D．barrel3．The fresh air is compressed and then stored in ___．A．scavenging air receiver B．starting air bottleC．stuffing box D．charging air receiver4．A mono-pump is a single-screw pump．That means it consists of ___ rotor(s)．A．one B．two C．three D．four5．A gear pump belongs to ___ according to its working principle．A．reciprocating pumps B．positive displacement pumpsC．centrifugal pumps D．centripetal pumps6．The internal part of boiler should be welded by yard if found ___．A．scaled B．cracked C．shape changed D．deformed7．In a ___ boiler the hot gases from the furnace pass through the tubes while the water is on the outside．A．water-tube B．fire-tube C．exhaust gas D．None of the above is true．8．The separation of impurities and water from __ is essential for good combustion of diesel engines．A．lube oil B．fuel oil C．turbine oil D．grease9．High-speed rotation in a centrifugal purifier can produce a force ___ the force of gravity．A．many thousand times larger than B．the same asC．many thousand times smaller D．none of the above10．Among the basic categories of equipment, which of the following are used to convert mechanical into hydraulic energy?A．the hydraulic pumps B．valvesC．hydraulic cylinders D．hydraulic motors 11．___ are used for cargo handling．A．Cranes B．Mooring winches C．Windlasses D．Foreman12．The color of the flame on a halide torch without any refrigerant present is ______．A．green B．blue C．orange D．purple13．The coil of wire rotating in the magnetic field produces the ______．A．voltage B．power C．current D．frequency14．A fluid coil will ___ large quantities of heat when it changes state from a liquid to a vapor．A．release B．absorb C．develop D．regenerate15．In the process of ___,liquid changes into gas．A．evaporation B．frosting C．condensing D．compressing16．The starting current of an a．c．motor is ___ the rated current．A．the same as B．much larger than C．less than D．equals17．'gauge pressure' means ___ ．A．'vacuum' B．'the excess of pressure above atmosphere'C．'figure on a gauge' D．any of the above18．The main generators are connected to ___ ．A．distribution boards B．section boardsC．emergency switchboards D．main switchboards19．With UMS, when the engine room is unwatched ___ will control the main engine．A．the bridge officer on watch B．the chief engineerC．the duty engineer D．the duty motorman20．If there is water in fuel, the Rpm of the diesel engine will ___．A．decrease B．increase C．be dismantled D．be reassembled 21．The ___ of the gravity disc is too big．It cause oil to flow through the water outlet．We changed the disc and no oil is found in the water outlet．A．gravity B．diameterC．circumference D．cylinder22．Prior to any overhaul work on electric equipment, it is important to ensure the circuits are ___ ．A．live B．deadC．excited D．on line23．______ is a precaution which contributes to avoiding trouble under normal operating conditions．A．Constant inspection B．Keeping constant loadC．Remaining constant temperature D．varying speed24．At the completion of the watch each member should hand over to ___ , ensuring that he is competent to take over and carry out his duties effectively．A．an oiler B．a pumpmanC．his relief D．his leader25．The company should establish procedures to ensure that the ship is maintained_____ the provisions of the relevant rules and regulations．A．out of accordance with B．in relation toC．in conformity with D．in connection with26．The cylinder contains a great weight of air and is capable of burning a great quantity of fuel at ___?A．the end of the compression stroke B．the beginning of the suction stroke C．the end of the working stroke D．the end of the exhaust stroke 27．Fresh water is used for the cooling of cylinder jackets and ___ of the marine diesel engine．A．cylinder covers B．lubricating space C．crosshead D．exhaust manifold 28．Be sure to make the main engine turn by ___ before starting and after stopping．A．steering gear B．turning gearC．steering wheel D．turning cycle29．The gear and screw pumps are classified as ___．A．variable stroke pumps B．multistage pumpsC．positive displacement pumps D．triple-ported pumps30．___ are mounted in pairs to protect the boiler against overpressure．A．Safety valves B．Water tubes C．Steam stop valves D．Blow down valves 31．___ are used to ensure that ships don't discharge oil when pumping out oily water from any oil contaminated space．A．Boiler B．Incinerator C．Oily water separator D．Sewage treatment unit 32．When in operation, it is unavoidable that a small amount of oil ___ through leakage, and in order to compensate for these leaks the system is connected to a feed pump．A．escapes B．overheats C．expands D．accelerates33．The heat used to change a liquid to a vapor is called ___．A．latent heat of fusion B．latent heat of vaporizationC．specific heat of vaporization D．latent heat of the gas34．With four-stroke engines, it takes four revolutions of the crank shaft to make ___ power stroke(s)．A．1 B．2 C．4 D．835．Ammeter is to measure the ___ ．A．current B．voltage C．power D．frequency36．We should not start the engine unless the turning gear is ___ ．A．disengaged B．bolted C．unscrewed D．on37．Increasing the temperature of a fuel will ___ its viscosity．A．increase B．reduce C．keep D．None of the above is true 44．Which of the following would cause a diesel to have black smoke?A．leaky injector B．water in the gas C．too heavy oil D．water in the oil 46．The designed ___ is 20 tons per day, but the fresh water generator can only distil 15 tons at present．A．displacement B．weight C．power D．capacity47．On commonly used ships, if two A．C．generators are operated in parallel, the load is distributed evenly by ___．A．varying the D．C．exciter voltage B．varying the reluctance of the air gapC．regulating the speed of prime mover D．shorting out part of the armature windings 48．Dirty oil must be _____ before being used again ．A．mixed with clean oil B．purified C．heated D．strained49．When under maneouvring conditions with the machinery being manually operated the control unit or console should be ___．A．automatically controlled B．continuously mannedC．off power D．None of the above is true．50．The SMS should provide for specific measures aimed at promoting the_____ of equipment or systems the sudden operational failure of which may result in hazardous situations．A．visibility B．ability C．reliability D．capability51．The ___ engine is used for alternators and some times for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm．．A．four-stroke B．two-strokeC．slow speed D．reversible38．A manometer is used to measure ___．A．pressure B．temperature C．volume D．specific gravity39．The emergency generator or emergency battery is connected to ___ on most large ships．A．distribution boards B．section boardsC．emergency switchboards D．main switchboards40．In a marine diesel engine the oil sump is ___.A. oil circulating pumpB. the oil cup for the exhaust valveC. the pan for collecting drain fuel oilD. just below the crankcase41．The difference between measured and desired values is called ___．A．make-up B．desired value C．deviation D．set value42．___ are used to handle anchors and chains.A. cargo winchesB. mooring winchesC. windlassesD. cargo hatches 43．The crankcase can not be opened ___ the parts have been cooled down．A．if B．as C．unless D．when45．Which will cause the high pressure cutout to stop the compressor in a R-22 system?A．condenser leakage B．a shortage of liquid refrigerantC．excessive frost on the evaporator D．not enough condenser cooling water52．The cleaned heated oil, after passing through the centrifuges, is to be pumped to a ___．A．settling tank B．service tank C．ballast tank D．drain tank53．The turbo-blower comprises a gas turbine and a ___．A．condenser B．blower C．soot blower D．air receiver54．Gear pumps are of positive displacement type pumps because they discharge a near constant amount of liquid ___ pressure．A．depending on B．in relative to C．regardless of D．because of 55．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．A．positive displacement B．ejectorC．centrifugal D．air compressor56．Compressed air is supplied by air compressors to _____．A．the air receivers B．the starting valvesC．the cylinder covers D．the distributors57．When _____is operated, a supply of pilot air enables the remote valve to open.A．the distributor B．the cylinder air start valveC．the turning gear D．the air start lever58．Oil water separators are used to ensure that ships don’t discharge oil when pumping out _____．A．ballast water B．boiler water C．bilge water D．sewage water 59．The ___ of the diesel oil must not exceed 120 degree Fahrenheit.A. viscosityB. pressureC. acid valueD. temperature60．In a hydraulic system ,___ are used to protect the system from over pressure．A．stop valves B．check valves C．safety valves D．reducing valves 61．The water level in a steaming auxiliary boiler will always ___．A．rise when the steam pressure is increasedB．remain constant as long as the feed pump operatesC．fall when the steam pressure is decreasedD．vary as the steam demand changes62．What is the substance called which can readily be converted from a liquid into a vapor, and also from a vapor into liquid with a reasonably narrow range of pressure?A．refrigerator B．refrigerantC．cooling medium D．brine63．Before starting the engine the air bottle should be ___.A. closedB. loadedC. dischargedD. pumped up64．The ___ is used to measure the volume of a liquid or gas through a pipeline within any given period of time．A．flowmeter B．viscometer C．micrometer D．feeler65．UMS stands for ___ ．A．ultra much space B．universal medium systemC．unit machined space D．unattended machinery space66．The crankcase oil moist detector alarms on ___ with engine shut down．A．low flash point of oil B．low hardness of L．O．C．high viscosity of oil D．high density67．After fitting back in place the gear wheels, don't forget to ___ them．A．fulfil B．eliminate C．grease D．bend68．The pistons are cooled by oil supplied from the forced ___ system.A. fresh waterB. sea waterC. fuel oilD. lubrication 69．The lower end of each piston rod is reduced in diameter to fit a bore in ___．A．the crosshead B．the journals of the crossheadC．the crosshead shoes D．the guides70．An electrically driven automatically operating auxiliary blower is provided for slow speed and ______ of a low speed diesel engine．A．manoeuvring operations B．bad combustion C．cooling D．mooring trial 71．The piston moving up and down keeps crankshaft______.A．reciprocating B．revolving C．revolved D．reciprocated72．In ___ scavenging the incoming air enters at the lower end of the cylinder and exhaust gases are forced out at the top．A．cross B．loop C．aspirate D．uniflow73．On two-stroke diesels ___ is usually provided because the exhaust gas driven turbo-blower cannot provide enough air at low engine speeds．A．a hydraulic governor B．control valvesC．an electrically auxiliary blower D．electric motors74．There may be steam coils in a cylinder cooling water system．___ during operation of the engine．A．Steam should pass through the coils B．Steam should be cut offC．Electric should supplied to the coils D．The coils should be dismantled 75—80题在下页二．关联题（每组关联题题干下有4个小题，每小题4个选项Fuel oil thought to be one of the main factors having much to do with the operation and maintenance of an engine．The fuel oil system for a diesel engine can be considered in tow parts-the fuel supply and the fuel injection system．When the atomized fuel is injected into thecombustion space, ignition is not altogether instantaneous, a definite time lag being measurable between the time of injection and ignition．The period of ignition lag depends, among other factors, on the ignition quality of the fuel and the temperature of the compressed air．75．This paragraph tells us that ____ ．A．ignition takes place before the injection of the atomized fuelB．ignition takes place simultaneously with the injection of the atomized fuelC．the period of ignition lag depends only the quality of the fuel and the temperature of the compressed airD．the ignition quality of the fuel and the temperature of the compressed air are the two main factors for the period of ignition lag76．Instantaneous in the passage probably means ____ ．A．simultaneous B．before C．after D．when77．The period of ignition lag depends on ____ ．A．neither the quality of the fuel nor the temperature of the compressed airB．the quality of the fuel but or the temperature of the compressed airC．not only the quality of the fuel but also the temperature of the compressed airD．the quality of the fuel and the quantity of fuel78．The fuel oil system includes ____ ．A．setting points and carbon residuesB．viscosity and water contentC．cetane number and calorific valueD．the fuel supply and the fuel injection system．三．中译英（共2题，请将答案写在答题纸上）79．清洁检查甲板1号燃油柜透气管内的球阀及滤网。