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 prevented from conta
2、minating 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 B. to reduce low temperature corrosion C
3、. 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 close. B.fan damper locking pins are free to be remo
4、ved 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, high-pressure gas from the compressor and cool it to remove first t
5、he 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 to turn the motor itself C.used to establish the magnetic field of the motor D.lost
6、 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 occur on the compression stroke C.ignition will be delayed due to low ignition temperature D.fuel
7、 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.The depth of the ship below the waterline measured vertically to the lowest part of the hull is called_ . A.tonnage
8、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 motor when the winch is started would indicate_ . A.clogged suction line fluid filters B.air trapped in the system C.the fluid leve
9、l 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 ensure 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
10、12.Which of the following problems could develop due to the accumulation of oil vapors in the crankcase of a diesel engine? A.Reduced lubrication 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 en
11、tered in the_ . A.ballast log B.muster log C.engine room log D.oil record book 14.The cetane rating of diesel fuel is 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 s
12、hip drill,_ should be tested every time. A.M.E.emergency operation B.main/auxiliary steering gear 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
13、sea. A. the port state B. the coastal state 沿岸国C. the flag state D. the shipping company 17._ assists to emulsify oil and water into an even emulsion mixture for a fine atomizing of an incineratorA.An intermittent vibration B.An intermittent agitation C.A continuous agitation 连续的搅拌D.A continuous vib
14、ration 18.Combustion knock will most likely occur as a result 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
15、 CO2 release B.Lube oil pump and distilling 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 Contracti
16、ng Governments. A.Security level 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 p
17、rime 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 water level C.i
18、ncrease 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 lubrication C.maintenance D.the suppo
19、rt 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 of rest in the following circumstances EXCEPT_ .
20、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 accomplished by moving the_ . A. radial plunger B. cylinder bo
21、dy 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 occur in the_ . A.electric fresh water transfer pump B.engine room bilge C.breathing compartmen
22、t 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._ of the controllable pitch propeller enables the blades to be moved to change the pitch angle. A.A hunting gear system B.An i
23、nternal 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 to overfeed. B. crankcase drains to plug C. water regulating valve to fail D. compressor to knock 33.Enhanced procedures concerning the exerc
24、ise of_ have been developed to allow intervention in the case of deficiencies deemed to pose a danger to persons, property or the environment. A.flag 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
25、lube oil purifier is not properly primed prior to admitting oil flow to the bowl? A.Contamination of the lube oil by emulsification will 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 oi
26、l will overheat and flash. 35.According to STCW CODE, an engineer officer must possess which of the following functions? A.Radio communications B.Cargo handling and stowageC.Navigation D.Controlling the operation of the ship and care for persons on board. 36.In a ordinary cargo crane,_ is fitted to
27、rotate the crane. A.the hoisting motor B.the fan motor C.the luffing motor D.the slewing motor 37.Which 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 equalizerC.Field and exciter D.Rot
28、or and interpoles 38.Oil mist detectors are usually used on board to detect oil mist density within_ . 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
29、 exhaust valves D.incorrect injection timing 40.To prevent excessive_ 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
30、_ . A.apply a heavy coat of oil to all mating 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 c
31、ompressed air B.both of them are 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 c
32、ontactor is parallel connected. 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.us
33、e a soda 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 isnt released. C.The motor is out of
34、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 the cylinder than it would
35、 normally receive during an ordinary charging process47.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 kept under constant surveillance. 监控A. the steer
36、ing 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 oily mixtures to a reception facility B.A portable syste
37、m 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 normal, youshould check for a_ A.clogged sea water strainer B.blow
38、n 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 safety of life at sea, better know as SOLAS 52.When cutting sheet metal too thin to be held
39、 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 provided by the crankcase ventilation system on some diesel engines? A.Increases the sludge forming tendenc
40、y 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 operating in parallel, the_ . A.kilowatt load is evenly divided B.phase sequence is altered C.field excitation of both unit
41、s 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 C.Intermediate surveys！D.Special surveys 56.In common rail engines, the fuel is_ before is injected into the cylinders. A.already atomized B.p
42、umped by the injection pump C.stored in a common fuel lineD.at low pressure57.The valid period of the International Oil Pollution Prevention Certificate on board isnt 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 indi
43、cates_ . A. the temperature of oil water is low B. the separator is overloaded C. the monitor equipment of separator 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 l
44、ines that are no greater than 24 inches from the pump suction C.be provided with only a perfectly horizontal 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 h
45、ouse) A.transmission mechanisms B.fittings and pipeline C.power unit D.control equipment 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 pressu
46、re on the liner walls under conditions involving_ . A.constant 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 va
47、lves closed B.drained and dried out after closing 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 ex
48、pansion valve C.prevent motor overheating D.condense the refrigerant gas 65.An over-speed trip stops a diesel engine when the engine_ . A.has low lubricating oil pressure B.exceeds a set maximum speed C.has high cooling water temperature D.runs out of fuel 66.When the ship is pushed forward by the w
49、aves 海浪and sinks back into a trough, she is_ A.surging B.heaving C.rolling D.swaying 摇曳67.The abbreviation “MIP“ stands for_ . A.mean indicated pitch B.mean indicated pressure C.middle indicated power D.middle indicating pressure 68.In order to protect the aerobic bacteria from death, the sewage plant should work_ . A.continuously B.at 7-day intervals C.at
