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The depth of the ship below waterline measured vertically to the lowest part of the hull is called________ .

发布者:海员网|更新时间:2017-04-18 14:49:49|咨询可以加微信:cyfu01 | 702人评论)

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The depth of the ship below waterline measured vertically to the lowest part of the hull is called________ .

  • 2/100

    Besides the metric ton (1,000 kg), there is the English ton (1,016 kg), which is also called the “______”.

  • 3/100

    The diesel engine consumes considerably less fuel than the steam engine for equal output; ____ enables a motor-ship to load more cargo.

  • 4/100

    It is a verified fact that the higher _____ of a two-stroke engine, the higher _____.

  • 5/100

    The distance between TDC and BDC of the diesel engine is called a ______.

  • 6/100

    V. I. T. means______.

  • 7/100

    The end of fuel injection in a port-and-helix metering pump can be controlled by _______.

  • 8/100

    The rate of fuel injection in a diesel engine cylinder depends primarily on _______.

  • 9/100

    The plunger in the fuel injector pump, usually operated by a _____ , is driven up and down when working.

  • 10/100

    As the plunger moves upwards in the barrel, injection will commence once the plunger has ____ the spill ports and the pressure builds up.

  • 11/100

    A change in the degree of fuel atomization in a diesel engine would most greatly affect _______.

  • 12/100

    A mixture of 45%cetane and 55% alpha-methyl-naphthalene is found to have the same ignition delay as a sample of diesel oil. The sample can be described as having a(an) ____.

  • 13/100

    The ignition quality of a diesel fuel is indicated by the ______.

  • 14/100

    A decrease in the flash point of diesel engine lube oil indicates the lube oil has become______.

  • 15/100

    The main function of the lubrication system is to enable ____ of a film of oil between the moving parts.

  • 16/100

    The function of lubricating oil is to_____.

  • 17/100

    The value of the controlled variable, which under any fixed set of conditions the automatic controller operates to maintain, is known as( )

  • 18/100

    Lubricating oil systems are fitted with a wide variety of strainers some of which can be cleaned in site while others have replaceable cartridges. The bold and italic word “which” means____.

  • 19/100

    If the engine ____ for a long period, there will be a danger of frost.

  • 20/100

    Which of the following functions are chemical treatments for cooling water system designed to do?

  • 21/100

    The starting air system usually has _____to prevent starting if anything is not in order.

  • 22/100

    Load control on a diesel engine is accomplished by _______.

  • 23/100

    For a diesel engine, individual cylinder performance is commonly determined by exhaust gas ____.

  • 24/100

    Which of the following conditions may need to be reduced when operating a large, low-speed, main propulsion, diesel engine at low loads?

  • 25/100

    The crankcase cover should never be allowed to open for investigation when _____ .

  • 26/100

    Excessive clearances in the main or crank-pin bearings will sometimes be indicated by ______ before any bearing knock is heard.\

  • 27/100

    The main propulsion diesel continues running after you try to shut down. You should now attempt to ____.

  • 28/100

    While overhauling a jerk-type fuel pump it is necessary to replace the pump plunger. Which of the parts listed below must also be replaced?

  • 29/100

    A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to _____________.

  • 30/100

    You are experiencing large hunting on the fresh water cooling system. What is the reason?

  • 31/100

    What can happen with a lube oil cooled piston if you stop the lube oil pump immediately after you stop the engine?

  • 32/100

    What is the purpose of a hydraulic valve lash adjuster?

  • 33/100

    You should frequently compare drum-mounted and remote-reading water level indicators, _____ between these have contributed to failures because of overheating through shortage of water, when a boiler w

  • 34/100

    Which of the following conditions could cause the feed pump for an auxiliary boiler to lose suction?

  • 35/100

    Some refrigeration systems have chemical moisture indicators installed in conjunction with the sight glass in the liquid line. If excess moisture is present in the system, the indicator will _____.

  • 36/100

    The sensible heat of air is dependent upon the_______.

  • 37/100

    The temperature at which water vapor in the atmosphere begins to condense is called the ____.

  • 38/100

    What would be the effect if air was to enter the Freon system?

  • 39/100

    If the compressor runs continually, the cause might be the__________.

  • 40/100

    What is the quicker and more sensitive method for Freon plants to detect leaks of refrigerant?

  • 41/100

    Coalescence is the breakdown of surface tension between oil droplets in an oil/water mixture, which causes them to join and ( )in size.

  • 42/100

    Which is the pollution prevention equipment?

  • 43/100

    The biological sewage treatment plant uses a tank which is divided into three watertight compartments: an aeration compartment,( )and a chlorine contact compartment.

  • 44/100

    The abbreviation “TDS” about the potable water probably means_____.

  • 45/100

    The hot water inlet and outlet valves in the fresh water generator should be open ( )during the starting process.

  • 46/100

    With reference to an axial piston pump, which one of the following statements is true?

  • 47/100

    Both relief valves and reducing valves are pressure control valves. The basic difference between them is that ________ is closed by a spring, and _________ opened by a spring.

  • 48/100

    In the constant-tension mooring, the mooring lines holding the ship to the pier will maintain a constant tension even with changes in tide or ship’s draft, _____.

  • 49/100

    Hydraulic machinery failures are commonly caused by misalignment of the system components and by ______.

  • 50/100

    The purpose of DC generator brushes is to ____.

  • 51/100

    When two AC generators are being paralleled, the breaker should be closed with the synchroscope pointer rotating in the ________

  • 52/100

    On commonly used ships, if two A.C. generators are operated in parallel, the load is distributed evenly by ____.

  • 53/100

    The load between two steam-driven alternators operating in parallel may be adjusted by varying__________.

  • 54/100

    The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor _____.

  • 55/100

    With two alternators running in parallel, you wish to stop one. The first step is to____.

  • 56/100

    After resolving the trouble of main power supply, main switch of emergency generator should( ), if power supply is refreshed

  • 57/100

    An emergency generator is diesel driven and located ____.

  • 58/100

    What are the essential services the emergency generator must be rated to provide power for?

  • 59/100

    The speed of a squirrel-cage motor is usually changed by ______.

  • 60/100

    Which of the following materials is a good insulator?

  • 61/100

    When the current flow through a copper wire increases, its ____.

  • 62/100

    An ammeter is to measure the ____.

  • 63/100

    Current measuring instruments must always be connected in ____.

  • 64/100

    A ground in an electrical circuit outside the engine room _______.

  • 65/100

    Violent gassing from a lead-acid battery while it is being charged, indicates that the ____.

  • 66/100

    Which of the listed devices is used to measure pressure and convert it to an electrical signal?

  • 67/100

    If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm( ).

  • 68/100

    After finished the engine, which of valves cannot be shut off by the duty engineer?

  • 69/100

    Which of the following must be eliminated to prevent accidents?

  • 70/100

    The four basic components of a fire are chain reaction, heat, fuel, and ______.

  • 71/100

    To maintain a fire, three conditions need to be met: Oxygen, combustible material and sufficient temperature for combustion. What subject must be removed to extinguish the fire?

  • 72/100

    Among the following items: Ⅰmuster list, Ⅱlog book, Ⅲfire control plans, Ⅳescape routes, Ⅴmaterial safety data sheets, which belongs to the important documentation?

  • 73/100

    Which of the listed fire extinguishers is recommended for use on an electrical switchboard fire?

  • 74/100

    Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?

  • 75/100

    Which of the listed classes of fire would apply to a main switchboard fire?

  • 76/100

    If there has been a fire in a closed unventilated compartment it may be unsafe to enter because of ____.

  • 77/100

    The soda-acid portable extinguishers must be discharged and refilled ____.

  • 78/100

    Which kind of extinguisher is suitable for the electronic fire?

  • 79/100

    Fire and lifeboat stations are required to be listed on the ____.

  • 80/100

    While working in the engine room, you hear seven short blasts followed by one long blast on the ship’s whistle, supplemented by the same signal on the general alarm bells. You should ____.

  • 81/100

    Diesel fuel is relatively safe to handle due to its low volatility, but the fumes will self-ignite and continue to burn steadily if the fuel is heated to the _______.

  • 82/100

    The lowest temperature required to cause serf-sustained combustion of a substance independent of any outside source of ignition is called ____.

  • 83/100

    Bunkering shall be terminated if there is a _____.

  • 84/100

    In the engine department, who will deal with the correspondence and negotiation between ship and shore?

  • 85/100

    In order to improve the efficiency of the communication with shore personnel, you should_______.

  • 86/100

    If the ordered spare parts have been modified by manufactures which of the following should be pay attention to?

  • 87/100

    In port it is the time when opportunity ______ to carry out the routine maintenance and inspection of the working parts of the machinery.

  • 88/100

    Crank web deflection readings will give a positive indication of( ).

  • 89/100

    The crankshaft deflection is at first to be ____ before ship repair.

  • 90/100

    The International Sewage Pollution Prevention Certificate(ISPP) is issued to______.

  • 91/100

    However, where immediate action is necessary to ensure safety of the ship, its machinery and crew, it must be taken by the engineer in charge. What does “it” mean in the sentence above?

  • 92/100

    When the machinery spaces are in the periodic unmanned condition, _____ shall be immediately available and on call to attend the machinery space.

  • 93/100

    Which of the following liquids can ordinarily be discharged overboard without being processed through an oily water separator?

  • 94/100

    Which one of the following is not generally recognized as one constitute of bilge water? __________.

  • 95/100

    You are on a vessel 10 nautical miles off the coast of Algeria, in the Mediterranean Sea. Are you allowed to dump food waste overboard?

  • 96/100

    The most common type of containment device for spilled oil on the water is the use of ____.

  • 97/100

    MARPOL73/78 consists of six separate annexes, which of the following annexes must be accept by States Parties?

  • 98/100

    Who is responsible for amending the Garbage Management Plan?

  • 99/100

    The requirements of the ISM Code may be applied to ___.

  • 100/100

    New adopted regulation of SOLAS says the master shall ______ when maintaining the security of the ship.

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