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1、天津八套与海事局八套题库（一） 1.The officer in charge of the engineering watch shall ensure that at all times bridge orders relating to changes in_____ of operation are immediately implemented. A. fore and aft B. ahead or astern C. speed or direction D. up or down 2.Small oil spills on deck can be pr
2、evented from contaminating any waters by_____ . A. plugging all scuppers and drains B.thoroughly draining all bunkering hoses C.regularly emptying all drip pans D.placing floating booms around the ship 3.The main purpose of warming up the main engine is_____ . A. to reduce heat stress
3、B. to reduce low temperature corrosion C. to improve firing and starting performance D. for fuel saving 4.In order to reduce the chance of detentions ships should routinely verify the following except for_____ . A.fan damper operation is smooth and operates through the full range of open to
4、close. B.fan damper locking pins are free to be removed without significant effort. C.fan damper operating handles are free to move without significant effort. D.fan damper are properly coated with white paint. 5.The purpose of the_____ in a vapour compression cycle is to accept the hot, hig
5、h-pressure gas from the compressor and cool it to remove first the superheat and then the latent heat. A.expansion valve B.condenser C.compressor D.evaporator 6.The energy consumed by an AC motor, as strictly reactive power, is_____ . A.used to do mechanical work B.lost in doing work t
6、o turn the motor itself C.used to establish the magnetic field of the motor D.lost as heat generated by the windings. 7.A diesel engine will lose power if fuel injection occurs too early because the_____ . A.fuel will not be properly atomized in the cylinder B.maximum fuel expansion will o
7、ccur on the compression stroke C.ignition will be delayed due to low ignition temperature D.fuel will ignite before top dead center 8.The designed_____ is 20 tons per day, but the fresh water generator can only distill 15 tons at present. A.power B.capacity C.displacement D.weight 9.
8、The depth of the ship below the waterline measured vertically to the lowest part of the hull is called_____ . A.tonnage B.trim C.draft D.lean 10.The hydraulic system of a deck winch has been drained, flushed, and refilled with hydraulic fluid. An erratic knocking noise from the hydraulic m
9、otor when the winch is started would indicate_____ . A.clogged suction line fluid filters B.air trapped in the system C.the fluid level in the reservoir is too high D.abrasive matter circulating in the oil 11.As a duty engineer, as soon as you hear the fire emergency signal, you should ens
10、ure that the_____ . A.ring buoys are thrown overboard B.fire pumps are started C.engines are stopped D.life preservers have been issued to everyone 12.Which of the following problems could develop due to the accumulation of oil vapors in the crankcase of a diesel engine? A.Reduced lubric
11、ation B.Poor fuel economy C.Combustion knock D.Crankcase explosion 13.All details of fuel bunkering, ballast handling, tank cleaning or slop disposal must be entered in the_____ . A.ballast log B.muster log C.engine room log D.oil record book 14.The cetane rating of diesel fuel is
12、an indication of the_____ . A.rate of fuel consumption B.ignition quality of the fuel C.calorific value of the fuel D.lash point of the fuel 15.In the voyage, when carrying out abandon ship drill,_____ should be tested every time. A.M.E.emergency operation B.main/auxiliary steering gea
13、r changing C.air/oil emergency shut-down D.the emergency lighting system for muster and abandon ship 16.The Master should call_____ for permission to use chemical agents in response to oil pollution into the sea. A. the port state B. the coastal state 沿岸国 C. the flag state D. the shippi
14、ng company 17._____ assists to emulsify oil and water into an even emulsion mixture for a fine atomizing of an incinerator A.An intermittent vibration B.An intermittent agitation C.A continuous agitation 连续的搅拌 D.A continuous vibration 18.Combustion knock will most likely occur as a result
15、of using a fuel with_____ . A. a high cetane number B. low ignition quality C. low ignition delay D. a high volatility 19.Which of the following is operated from the main engine room console on an automated vessel? A.Shaft alley door and fixed CO2 release B.Lube oil pump and distilling
16、plant C.Distilling plant and shaft alley door D.Fire pump and lube oil pump 20._____ means the level for which minimum appropriate protective security measures shall be maintained at all times, threats and exchanging such information with appropriate Contracting Governments. A.Security lev
17、el 4 B.Security level 3 C.Security level 2 D.Security level 1 21.Each cylinder has one starting valve which is usually opened by air pressure and closed by_____ . A.spring force B.new joints C.nuts and bolts D.sealing rings 22._____ is provided to alternators, in the event of prime
18、 mover failure to ensure that the alternator does not act as a motor. A.Frequency meter B.Reverse current protection C.Reverse power protection D.Synchronizing device 23.To avoid water "carry-over" in a boiler, you should_____ . A.increase the feed water alkalinity B.raise the boiler w
19、ater level C.increase the steam output D.remove the scum 24.The successful operation of any engine or machine and its trouble free life depends on_____ which involves the formation and maintenance of a lubricating oil film between the moving parts. A.effective cooling B.effective lubricati
20、on C.maintenance D.the support 25.Fuses placed in series with a thermal trip-type circuit breaker are used for_____ . A.short duration surge protection B.short-circuit protection C.sustained overload protection D.time-delay protection 26.The master may suspend the schedule of hours o
21、f rest in the following circumstances EXCEPT_____ . A.Cargo on board is in danger B.The seafarer wants to have extra pay额外的报酬 by working overtime C.Help another ship in distress.危难 D.The safety of the ship is threatened. 威胁 27.In a radial piston pump, reversal and control of fluid flow are
22、accomplished by moving the_____ . A. radial plunger B. cylinder body C. central valve D. floating ring 28.The main generators are connected to_____ . A. main switch boards B. distribution boards C. emergency switch boards D. section boards 29.A class 'B' fire would most likely occ
23、ur in the_____ . A.electric fresh water transfer pump B.engine room bilge C.breathing compartment D.main switchboard 30.The most common diesel engine fuel system problems are caused by_____ . A.excessive vibration B.broken fuel lines C.incorrect adjustments D.dirty fuel 31._____
24、of the controllable pitch propeller enables the blades to be moved to change the pitch angle. A.A hunting gear system B.An internal mechanism C.An interlock device D.An external mechanism 32.In a refrigeration system, foaming of the crankcase oil may cause the_____ . A. expansion valve t
25、o overfeed. B. crankcase drains to plug C. water regulating valve to fail D. compressor to knock 33.Enhanced procedures concerning the exercise of_____ have been developed to allow intervention in the case of deficiencies deemed to pose a danger to persons, property or the environment. A.f
26、lag state control B.safety inspection C.fire and boat drill D.port state control 34.Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl? A.Contamination of the lube oil by emulsification will
27、 result. B.Oil will discharge from the heavy phase discharge port and be wasted. C.The lube oil will not be subjected to the proper centrifugal force. D.The lube oil will overheat and flash. 35.According to STCW CODE, an engineer officer must possess which of the following functions? A.Rad
28、io communications B.Cargo handling and stowage C.Navigation D.Controlling the operation of the ship and care for persons on board. 36.In a ordinary cargo crane,_____ is fitted to rotate the crane. A.the hoisting motor B.the fan motor C.the luffing motor D.the slewing motor 37.Which
29、of the following components are used to convert alternating current produced in the generator windings to direct current? A.Commutator and crushes B.Armature and equalizer C.Field and exciter D.Rotor and interpoles 38.Oil mist detectors are usually used on board to detect oil mist density w
30、ithin_____ . A.the engine crankcase B.fuel tanks C.drain tanks D.the engine scavenge boxes. 39.A diesel engine could fail to start because of_____ . A.excessive cranking speed B.low exhaust back pressure C.floating exhaust valves D.incorrect injection timing 40.To prevent excessi
31、ve_____ in the transverse girders, the tie bolts are positioned as close to the center of the crankshaft as possible. A.bending moments B.surface tensions C.thermal loads D.thermal stresses 41.Before reassembling any machinery, you should_____ . A.apply a heavy coat of oil to all mating
32、surfaces. B.replace all bearings regardless of length of service C.coat all parts with ale mite grease D.clean any corroded surfaces and file all burrs smooth 42.The diesel engine is similar to the gasoline engine in that_____ A.both of them are ignited by compressed air B.both of them a
33、re the forms of external combustion engines C.the power is developed by the piston in the cylinder D.both of them have spark plugs 43.Which of the following statements represents the main difference between an relay and a contactor? A.A relay is series connected and a contactor is parallel c
34、onnected. B.Contactors are made from silver and relays are made from copper. C.Contactors control current and relays control voltage. D.Contactors can handle heavier loads than relays. 44.When fighting a spreading fire resulting from a broken fuel line, you should FIRST_____ . A.use a soda
35、 acid extinguisher B.look for a CO2 extinguisher C.shut off the fuel supply D.smother the fire with rags 45.If the bowl speed of the oil purifier is always lower than the rated speed, which cause is incorrect? A.The friction pads are slippery. B.The brake isn't released. C.The motor is
36、out of order. D.The throughput is high. 46.The term 'diesel engine scavenging' means_____ . A.forcing the products of combustion out of the cylinder with the fresh air charge B.collecting the air charge at the air cleaner C.combustion and expansion of hot gas D.delivering more air into t
37、he cylinder than it would normally receive during an ordinary charging process 47.Movement of engine no longer required means_____ . A.No Engine Revolutions B.Finished With Engine C.Stand-by Engine D.Stop Engine 48.The engineer officer in charge of the watch shall ensure that_____ are kep
38、t under constant surveillance. 监控 A. the steering gear B. the main propulsion plant and auxiliary systems C. the devices and systems in charge D. the communication devices 49.What must ocean going vessels of 100GT to 400GT be fitted with for oily mixtures? A.A portable system to discharge
39、 oily mixtures to a reception facility B.A portable system to discharge the slops overboard C.A fixed system to discharge the slops overboard D.A fixed system to discharge oily mixtures to a reception facility ！ 50.If the sea water supply pressure for a diesel engine cooling system is below n
40、ormal, you should check for a_____ A.clogged sea water strainer B.blown head gasket C.broken thermostat D.cracked head 51.The rules and regulation for maritime safety are governed by_____ A.The MARPOL Code B.The STCW Code C.The 2006 Labor Code D.the international convention for the
41、 safety of life at sea, better know as SOLAS 52.When cutting sheet metal too thin to be held in your hand while using a hand held hacksaw钢锯, the sheet metal should be placed between two_____ . A.blocks of wood B.blocks of steel C.pieces of sand paper D.pieces of cloth 53.What function is
42、 provided by the crankcase ventilation system on some diesel engines? A.Increases the sludge forming tendency of lube oil. B.Prevents the accumulation of combustible gases. C.Improves cold weather starting D.Improves lube oil cooling 54.To equalize the power factor of two alternators opera
43、ting in parallel, the_____ . A.kilowatt load is evenly divided B.phase sequence is altered C.field excitation of both units is adjusted ！ D.governors of both units are adjusted 55._____ are to be carried out at least twice within a five-year period. A.Docking surveys B.Annual surveys
44、C.Intermediate surveys！ D.Special surveys 56.In common rail engines, the fuel is_____ before is injected into the cylinders. A.already atomized B.pumped by the injection pump C.stored in a common fuel line D.at low pressure 57.The valid period of the International Oil Pollution Prevention
45、 Certificate on board isn't more than_____ A. five years B. two years C. one year D. four years 58.If found oil when we open low oil level plug of separator, it indicates_____ . A. the temperature of oil water is low B. the separator is overloaded C. the monitor equipment of separato
46、r fails D. the discharge pump of separator can not work 59.The construction of the main propulsion engine lube oil sump should_____ . A.have no plating joints of 90 B.provide drain/return lines that are no greater than 24 inches from the pump suction C.be provided with only a perfectly hor
47、izontal bottom D.retain the lube oil as long as possible before it recirculates through the system 60.The_____ in the steering gear system conveys a signal or desired rudder angle from the bridge(wheel house) A.transmission mechanisms B.fittings and pipeline C.power unit D.control equipm
48、ent 61._____ are used to reduce the sparking which occurs as the current collecting brushes move across the insulated segments A.Windings B.Field coils C.Isolators D.Interpoles 62.The piston rings exert a varying pressure on the liner walls under conditions involving_____ . A.constant
49、speed B.good lubrication C.reversal of direction of motion D.slowly changing speed 63.If a ship is to be laid up for an indefinite period无限期, the saltwater side of the main condenser should be_____ A.left filled with saltwater with the sea valves closed B.drained and dried out after clos
50、ing the sea valves C.left filled with saltwater with the sea valves open D.drained an refilled with saltwater after closing the sea valves 64.Saltwater is typically provided to a refrigeration system to_____ . A.prevent refrigerant superheating B.cool the expansion valve C.prevent motor
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客服电话：0574-28810668 投诉电话：18658249818
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