2013年9月份-10月份轮机英语大证考试真题整理(一)

P377-P386Which of the following can be used in transmission system usually?A Hydraulic oil B. Animal oil C. Light oil D. Fuel oilThe rotor of the hydraulic motor rotates at a speed proportional to the _______.A. flow of oilB. pressure of oilC. low and pressure of oilD. temperature of oil A pump shaft that is bent or distorted should normally be ______.A. repaired by a suitable welding processB.. straightened by applying heat and torsionC. reconditioned by metallizing and machiningD. replaced with a satisfactory spareDuring the running period of the diesel engine,if the supply of cooling water is interrupted or teh temperature of cooling water out of the cylinder is too high, the duty engineer should _________.A.notify the duty officer, reduce the engine speed, take some measures to remove failures.B.notify the duty officer, and stop the rngine immediately, find the cause and remove failureC.notify the C/ED.notify the captainAn inadequate reciprocating bilge pump discharge is most often caused by ________.A.Defective safety valvesB.clogged suction strainersC. Scarred cylinder wallsD.clogged drain valvesWhich of the listed devices would be installed at a control system air pressure reducing station? A.Moisture separator B. Vacuum breakerC.LubricatorD. Non-return valveThe instrument which the emergency switchboard doesn’t need is ______.A.ammeterB. VoltageC. WattmeterD. synchronous meterAt which od the following locations would a duplex pressure gage most likely be located in te fuel oil system?A. Fuel oil service pump discharge flangeB. Five years from the date of issueC. Three years from the date of issueD.. Fours years from the date of issueThe ______is developed in response to the perceived threats to ships and port facilities in the wake of the 9/11attacks in the United States.A.ISM CodeB. SMS .C. ISPS CodeD. SOLAS, 1974When using a fuel withe a higher than normal sulfur content in an auxiliary four strike diesel engine, you may_________A.Maintain higher than normal jacket water temperatureB.Change the lube oil more more frequently tan nomalC.Maintain a higher air--box temperature than normalD.Maintain a higher air--box pressure than normalUsually ______handles the majority of the correspondence and negotiation needen during transactions of stores and spare parts in the engine department.A.the chief engineerB. the second engineerC. the captainD.the chief mate Before the oily water separator put into operation, it should be _______.A.filled with bilge waterB. Filled with oilC. Filled with clean waterD. EmptiedRelief valves are usually used to ________.A.control the fluid flow through itB.prevent the pressure before relief valve over the specified valueC.make the pressure after relief valve steadyD.control the direction of oil flowPrior to starting an AC generator prime mover, the voltage regulator cutout switch should be placed in the ______.A.manual positionB. bus neutral positionC. raise voltage positionD.transfer position英语2The function of damper windings in a synchronous motor is to ________.A.eliminate slippageB. provide excitationC. provide starting torqueD. increase efficiency For the portable lighting, its safety voltage can not exceed_______.A. 50VB. 36VC. 24VD. 12VDuring the watch keeping at sea, routine adjustments should be _______A.made and noted as requires by the duty engineerB.reported to chief engineer immediately after being made by the duty engineerC.never made before getting permission from chief engineerD.made as required but not loggedThe _______convention is the first to establish basic requirements on training , certification and watching -keeping for the seafarers on an international level.A.STCW78B. STCW95C. SOLAS 74D. SOLAS 88The officer in charge of the engineer watch shall ensure that at all times bridge orders relating to change in _______of operation are immediately implemented.A.ahead or asternB. fore or aftC. up and downD.speed or directionMost medium-speed diesel engines are non-reversible meaning that _________is usually employed to cater for astern thrust .A.A controllable pitch propellerB. a remote controllerC. bridge control .D.concentration controlCleaning or renewal of filters is necessary at about 3-monthly intervals, the time varying according to _______.A.location on the shipB.working instructionC. the weatherD. ship sailing area When the union purchase derrick is operated,one derrick is positioned over the quayside and the other almost vertically over the ________A.dockB. cargo holdC. pedestalD.machinery space__________are used sacrificially to protect heat exchanger headers, or even the ship’s hull itself .A.Copper rodsB. Zinc rodsC. Carbon rodsD. Magnet rodsIn sewage treatment, the term maceration’refer to the process of ________A. breaking up solid matter into fine particlesB. precipitating non-decomposed waste in a collection tankC. chemically adjusting the sewage PH to 7.0D.eliminating bacterium bacterium coli from the sewageA circuit breaker is ________A.a distribution deviceB. A lighting equipmentC. The indicating instrumentD. An isolating switchIn the safety system, a double check valve with a common spring ensures that the _______always operates regardless of which of the oil lines is the pressure side.A.check valveB. Solenoid valveC. relief valveD. Pressure regulating valve. The average pressure exerted on a piston during each power stroke is termed_________.A. indicated horsepowerB. mean effective pressureC. exhausted back pressurepression pressureWhich statement regarding garbage disposal is correct?A.Records for ground garbage disposal are not requires when disposal into the sea occurs more than 25 miles offshore.B.Discharging or transfer of garbage while in port to a shore facility must be recordedC.Maintaining records for the incineration of garbage aboard ship is not required.D.The recording of garbage disposal should include the approximate weather.After the order “________” is given, the air system is shut down, the turning gear put in.A.Finished With EngineB. Stop the EngineC. Stand-by EngineD. Slow-down EngineDamage repairs are necessary for a ship with the result of collision, grounding and ________.A.blackoutB. minor fireC. floodingD. main generator failureA reservoir, as used in hydraulic systems aboard ship, is used to store hydraulic oil. Another function is to ________A.act as a shock absorberB. maintain the stored oil under pressureC. act as a base or foundation for the power unitD. eliminant pressure surges in the systemIn the event of a small bunker oil spill on deck occurring while bunkering, you should _________.A.wash down the area immediately with a fire hoseB.wash down the area with keroseneC. cover the area with absorbent materialC.cover the area with foamIf the bowl of a disk type centrifugal purifier when operated as a separator is not primed, the___.A. oil has a tendency to emulsify in the bowlB. purifier will act as a clarifier at the discharge ringC. oil will be lost through the water discharge portsD. oil solids will be deposited only at the intermediate top diskWhen starting a fuel limiter automatically limits the movement of te governor regulating shaft and thereby the _____of fuel which can be supplied to the engine.A. amountB. qualityC. appropriate temperatureD. appropriate viscosityFor crash maneuvers the level is moved from one extreme to the other, the sequence is _______A. braking, starting and reaching critical speedB. braking, reaching full speed (ahead or astern) and stoppingC. stopping oil supply, braking and reaching full speed (ahead or astern)D. braking, starting and reaching full speed (ahead or astern)Diesel engine mufflers or silencers reduce the engine exhaust noise by __________.A. passing the exhaust through long head pipesB. diffusing the exhaust vibrations through activated carbon bafflesC. increasing the exhaust gas velocityD. reducing the exhaust gas velocityThe port state control officer may witness a fire drill carried out by the crew assigned to these duties on the ____.A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster ListIn ________the control action is independent of the output.A. a closed loop control systemB. an open loop control systemC. a boiler control systemD. a steering gear control systemPrior to starting most medium-speed propulsion diesel engines, which of the procedures listed should be observed?A. The expansion tank should be topped off.B. The thermostatic water regulating valves should be manually opened.C. The fuel filters should be changed.D. The engine should be turned over slowly with the indicator cocks open.A vessel is required to carry an Oil Record Book PartⅠto log entries in the book regarding the __.A. discharge of ballast or cleaning water from fuel tanksB. sounding levels of all fuel tanks on a daily basisC. grade and specific gravity of all fuel oil carriedD. fuel consumption rates on a weekly basisThe construction of watertube boiler, which use small-diameter tubes and have a small steam drum, enables the generation or generation of steam at high temperature and pressures. The weight of the boiler is much less than an equivalent firetube boiler and the steam raising process is much quicker. Design arrangements are flexible, efficiency is high and the feed water has a good natural circulation. These are some of the many reasons why the watertube boiler has replaced the firetube boiler as the major steam producer.A. Early watertube boilers used a single drum, Headers were connected to the drum by short, bent pipes with straight tubes between the headers. The hot gases from the furnace passed over the tubes, often in a single pass.A later development was the bent tube design, This boiler has two drums, an integral furnace and is often referred to as the “D” type because of its shape. The furnace is at the side of the twi drums and is surrounded on all sides by walls of tubes. These waterwall tubes are connected either to upper and lower headers or a lower header and the steam drum. Upper headers are connected by a Return tubes to the steam drum. Between the steam drum and the smaller water drum below, large numbers of smaller-diameter generating tubes are fitted.(1)Which is not the reasons why the watertube boiler has replaced the firetube as the majorprocedure.A. the steam raising process is much quickerB. efficiency is highC. low water quality demandD. the feedwater has a good natural circulation(2)Early watertube boilers used a single drum . Headers were connected to the______by short, bent pipes with straight tubes between the headers.A. FurnaceB. EconomizerC. DrumD. Superheater(3)What is located at the side of the two drums and is surrounded on all sides by walls of tubes?A. FurnaceB. EconomizerC. DrumD. Superheater(4)Between the steam drum and the smaller water drum below , large numbers of ______ are fitted .A. Smaller-diameter generating tubesB. Lower headersC. Steam drumD. Upper headerWe should ____ before the operation of ship generator’s paralleling off.A. transfer the loadB. restart the generatorC. cut off the power supplyD. increase the loadThe _____ is developed in response to the perceived threats to ships and port facilities in the wake of the 9/11 attacks in the United States.A. ISM CodeB. SMSC. ISPS CodeD. SOLAS, 1974Which one is NOT the ’ for a more detailed inspection?A. no operation procedures for the oil separatorsB. engine log book missingC. the master and the chief engineer are unable to communicate effectivelyD. absence of an up-date muster listWhen during separation solids and water accumulate in the solids holding space, the liquid seal is displaced to the bowl _____.A. interfaceB. brimC. peripheryD. centre_____ must not be racked out to the isolated position whilst on load,as this action constitutes a serious fire hazard.A. Circuit breakersB. light switchesC. control leversD. cutoff switchesWhich of the following must be eliminated to prevent accidents?A. Unsafe actionsB. OrderlinessC. Frequent inspectionsD. Good work habit/practicesThe cetane number of a diesel fuel oil indicates its _____.A. viscosityB. acid contentC. heating valueD. ignition qualityTo maintain the design discharge pressure of a centrifugal pump,the clearance the _____.A. impeller and lantern ring is criticalB. impeller and casing wearing rings is criticalC. packing box and packing gland is criticalD. gland seal and packing gland is criticalThe main objective of the SOLAS Convention is ______.A. to provide a solution of lowering pollution at seaB. to specify minimum standards for the member composing the watch at seaC. to specify minimum standards for ships considering their safetyD. to tell the company hoe to go about running their businessThe most suitable pump for oily water separator feed duties is_________A. a reciprocating pumpB. a vane pumpC. a centrifugal pumpD. a triple screw pumpBefore stopping he oil purifier, you should _____firstly.A. cut off the powerB.shut off the oil inletC. open guide water valveD. cose oil outlet valveWhich of the actions listed should be taken first to control an oil fire in a fuel oil tank?A. Commence draining that tank as quickly as possible.B. Seal off all vents to that tank.C. Activate the CO₂system to that tankD. Shut off the steam heating coils.Ring groove inserts are occasionally used on aluminum alloy pistons to _________.A. reduce the ring groove wear rateB. seal against crankcase vaporsC. lessen the wear on aluminum parts of the cylinderD. allow for the greater expansion rate of aluminumAt every dry-docking, propellers should be carefully examined and the slightest defect at once rectified. Similarly, any unusual vibration or noise whilst at sea should be investigated immediately and, if the cause cannot be found inboard, then the first opportunity must be taken of an under-water inspection. The expert examination and repair of propellers is a service provided by the leading manufacturers. Whenever possible, use should be made of this service because, first, it is not always easy to detect slight damage and, secondly, inexpert work can quite easily cause irreparable harm. Cracks formed at or near blade edges, no matter how small, are potentially dangerous. If a crack should be found close to the boss(within 0.45 of the propeller radius) the makers should be consulted as any repair in this region involving heating can leave very high residual stresses which can only be removed by annealing the complete propeller. Small cracks can be temporarily stopped from spreading by drilling a hole of at least 1 mm in diameter at the extremity of the crack. The hole should be plugged to avoid any risk of cavitation.(1) Which of the following statements is true?A. If cracks formed near blade edges are very small, no care should be taken.B. Only by annealing the complete propeller can the high residual stresses be removed.C. Small cracks can be permanently stopped from spreading by drilling a hole.D. The hole should be drilled at the middle of the crack.(2) Why should the service provided by the leading manufacturers be used wherever possible?A. Only because the service is free of charge.B. Only because it is not easy to detect slight damage.C. Only because inexpert work can quite easily cause irreparable harm.D. Because it is difficult to find slight damage and inexpert work can result in irreparable harm.(3) An under-water inspection should be taken _____.A. whenever any unusual vibration occursB. whenever any abnormal noise occursC. whenever the cause for any unusual vibration or noise while at sea cannot be found inboardD. whenever every dry docking is carried out(4) If a crack should be found near the boss (within 0.45 of the propeller radius), which action should be taken first?A. repairing this regionB. annealing the complete propellerC. consulting the makersD. drilling a hole with diameter less than 1 mmWhich of the listed pumps id NOT a positive displacement pump?A. centrifugal pumpB. Reciprocating pumpC. Gear pumpD. Rotary pumpThe burning of fuel oil in a diesel engine having a high sodium content, will cause _______A. Corrosion and grooving of exhaust valvesB. Corrosion and gumming of the fuel injection pumpC. Salt deposits in the exhaust manifoldD. Slag deposits in the fuel injection equipmentWhen accumulated carbon at the air inlet ports of a two-stroke/cycle diesel diesel engine is being removed, you should take care to avoid carbon particles_____A. entering the cylinderB. becoming lodged under the intake valvesC. entering the jacket waterD. entering lube oil。