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Which statement is TRUE concerning insulating flanges ________.A.They should be inspected and tested periodically to ensure that the insulation is clean and in good conditionB.Switching off a cathodic protection system may be substituted for using an insu

题目

Which statement is TRUE concerning insulating flanges ________.

A.They should be inspected and tested periodically to ensure that the insulation is clean and in good condition

B.Switching off a cathodic protection system may be substituted for using an insulating flange

C.The measured resistance value after installation should be less than 1,000 ohms

D.After the insulating flange is installed,hot work may be performed on deck


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  • 第1题:

    Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ________.

    A.Stack weights should be less when using a solid bar lashing as compared to a wire lashing

    B.Stack heights may be increased when using a solid bar lashing

    C.Stack heights should be reduced when using a solid bar lashing

    D.Solid bars should be used for lashing the first tier only,with wire lashings on the higher tier(s)


    正确答案:A

  • 第2题:

    Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited ________.

    A.It is required on all vessels

    B.It may be located in a conspicuous place in the wheelhouse

    C.It may be located at the bilge and ballast pump control station

    D.All of the above


    正确答案:C

  • 第3题:

    Which statement is TRUE concerning combustible gas indicators ________.

    A.One sample of air is adequate to test a tank

    B.They do not work properly where there is a lack of oxygen

    C.They will detect a lack of oxygen

    D.They are calibrated to read the percentage chance of explosion


    正确答案:B

  • 第4题:

    单选题
    A loaded hopper barge with independent tanks has a placard,with alternating red and white quadrants,on each side and end. Which statement concerning this barge is TRUE?()
    A

    The cargo will spontaneously ignite if released to the atmosphere

    B

    You must operate this barge as a lead barge

    C

    The barge should be spotted as far away from the towboat as possible

    D

    The barge must be in a protected position within the tow


    正确答案: D
    解析: 暂无解析

  • 第5题:

    单选题
    For GMDSS,which statement concerning a compulsory vessel is FALSE?()
    A

    A conditional or partial exemption may be granted,in exceptional circumstances,for a single voyage outside the sea area for which the vessel is equipped

    B

    Once a compulsory vessel's GMDSS station has been fitted and inspected,the station must be inspected only once every five years

    C

    All passenger vessels and all cargo vessels that are 300 Gross Tons or larger must comply

    D

    Compulsory vessels must carry at least two licensed GMDSS Radio Operators


    正确答案: C
    解析: 暂无解析

  • 第6题:

    单选题
    Two barges are being pushed ahead by a tugboat.Which statement is TRUE concerning lights on the barges().
    A

    Each vessel should show sidelights

    B

    Each vessel should show at least one white light

    C

    The barges should be lighted as separate units

    D

    The barges should be lighted as one vessel


    正确答案: C
    解析: 暂无解析

  • 第7题:

    单选题
    Which statement is TRUE concerning hawser towing? ()
    A

    The catenary in a hawser should be sufficient so that the hawser just touches the bottom

    B

    The hawser is of sufficient length for towing when taut between tug and tow

    C

    Increasing speed usually increases the catenary in the hawser

    D

    Shortening the tow hawser generally decreases the maneuverability of the tug


    正确答案: C
    解析: 暂无解析

  • 第8题:

    单选题
    If the situation arose where it became necessary to tow a disabled vessel,which statement is TRUE concerning the towing line?().
    A

    The towing line between the two vessels should be clear of the water

    B

    The towing line should be taut at all times between the vessels

    C

    There should be a catenary so the line dips into the water

    D

    None of the above


    正确答案: C
    解析: 暂无解析

  • 第9题:

    单选题
    Which statement is TRUE concerning lifeboat gripes?()
    A

    They must be released by freeing a safety shackle

    B

    They should not be released until the boat is in lowering position

    C

    They may be adjusted by a turnbuckle

    D

    They are normally used only with radial davits


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    Which statement concerning Montauk Point Light is TRUE().
    A

    The light comes on at sunset

    B

    There is an emergency light if the main light is extinguished

    C

    The height of the light is 24 feet

    D

    The tower is painted with black and white stripes


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    Which statement is FALSE concerning precautions during fueling operations?()
    A

    All engines,motors,fans,etc. should be shut down when fueling

    B

    All windows,doors,hatches,etc. should be closed

    C

    A fire extinguisher should be kept nearby

    D

    Fuel tanks should be topped off with no room for expansion


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    Which statement concerning current is TRUE().
    A

    Current can be determined by measuring the direction and distance between simultaneous EP and DR positions

    B

    The drift of the current should be averaged out on a one hour basis

    C

    After the current is determined,it should not be used for further plotting because it is an unknown variable

    D

    The distance between a simultaneous DR position and fix is equal to the drift of the current


    正确答案: B
    解析: 暂无解析

  • 第13题:

    Which statement is correct concerning the carriage of coal in bulk ________.

    A.Coal should be vented with surface ventilation only

    B.Because of its inherent vice,coal should not be loaded wet

    C.Dunnage should be placed against ship's sides and around stanchions

    D.Through ventilation,as well as surface ventilation,should be provided whenever possible


    正确答案:A

  • 第14题:

    Which statement is TRUE concerning buoyant work vests aboard tankers ________.

    A.They may be worn while working on deck but not while working over the side

    B.They must be used only under supervision of a designated ship's officer

    C.They will be accepted for up to 10% of the required life preservers

    D.They may be worn during drills


    正确答案:B

  • 第15题:

    Which statement concerning GPS is TRUE ________.

    A.It cannot be used in all parts of the world

    B.There are 12 functioning GPS satellites at present

    C.It may be suspended without warning

    D.Two position lines are used to give a 2D fix


    正确答案:C

  • 第16题:

    单选题
    Your 15-meter tug is underway and crossing a deep and narrow channel. A large container vessel is off your port bow on a steady bearing. Which statement is TRUE concerning this situation? ().
    A

    You should maintain course and speed

    B

    The container vessel is the stand-on as it is the larger vessel

    C

    You are not to impede the safe passage of the container vessel in the channel

    D

    None of the above


    正确答案: C
    解析: 暂无解析

  • 第17题:

    单选题
    Which statement concerning sweat damage in containers is TRUE?().
    A

    Sweat damage in containers is unusual due to the small enclosed volume of air

    B

    In general,containerized hygroscopic cargoes are the only ones subject to sweat damage

    C

    Containers should be ventilated,dehumidified,or the contents physically protected against sweat damage

    D

    Sweat damage is not a problem except in insulated and refrigerated containers


    正确答案: C
    解析: 暂无解析

  • 第18题:

    单选题
    Which statement is TRUE concerning the gooseneck().
    A

    It is a sailing maneuver which brings the vessel's head through the wind

    B

    It connects the boom to the mast and allows the boom to swing freely

    C

    It is a sailing condition where there is a loss of air flow over the sails

    D

    None of the above


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited().
    A

    It is required on all vessels

    B

    It may be located in a conspicuous place in the wheelhouse

    C

    It may be located at the bilge and ballast pump control station

    D

    All of the above


    正确答案: C
    解析: 暂无解析

  • 第20题:

    单选题
    Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? ()
    A

    Stack weights should be less when using a solid bar lashing as compared to a wire lashing

    B

    Stack heights may be increased when using a solid bar lashing

    C

    Stack heights should be reduced when using a solid bar lashing

    D

    Solid bars should be used for lashing the first tier only,with wire lashings on the higher tier(s)


    正确答案: C
    解析: 暂无解析

  • 第21题:

    单选题
    Which statement is TRUE concerning gasoline vapors on board a vessel().
    A

    They are heavier than air and will settle in the lowest part of the vessel

    B

    They are lighter than air and will settle in the highest part of the vessel

    C

    They should be vented into the engine to improve combustion

    D

    They should be vented into the wheelhouse


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    Which statement concerning the collection of fresh water is FALSE?()
    A

    Fresh water may be obtained from fish

    B

    Lifeboat covers or canopies should be washed with rain before drinking water is collected

    C

    Fresh water may be collected from condensation inside the liferaft

    D

    Seawater should never be consumed


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    Which statement is TRUE concerning fuel vapors on a vessel().
    A

    Fuel vapors gather in the lowest portions of the vessel

    B

    Fuel vapors can only be ignited by an open flame

    C

    Vent outlets should be located above the level of the carburetor air intake

    D

    None of the above


    正确答案: B
    解析: 暂无解析