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A Kort nozzle is a(n) ______.A.hollow tube surrounding the propeller used to improve thrustB.nozzle attached to a firefighting hoseC.intake valve on a diesel engineD.piston cylinder on a diesel engine

题目

A Kort nozzle is a(n) ______.

A.hollow tube surrounding the propeller used to improve thrust

B.nozzle attached to a firefighting hose

C.intake valve on a diesel engine

D.piston cylinder on a diesel engine

相似考题

1.A thrust bearing is used with a propulsion diesel engine to ____.A.control axial movement of the crankshaftB.transmit engine thrust to the propeller shaftC.absorb vibrations in the propeller shaftingD.prevent propeller thrust from being transmitted to the hull

2.To improve the quality of our products ,we asks for suggestions _______had used the products.A.whoeverB. whoC. whicheverD.which

3.A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a ______.A.heavy-walled drill pipeB.tool jointC.down hole toolD.drill collar

4.When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?A.The propeller hub taper and shaft keyway should be inspected for cracks or corrosionB.The stern bearing alignment with the stern frame should be checkedC.The interior of the stern tube should be inspected for leaksD.The shaft liner should be removed and inspected for cracks

更多“A Kort nozzle is a(n) ______.A.hollow tube surrounding the propeller used to improve thrus ”相关问题

  • 第1题：

    The moisture equilibrium chart can be used to determine the ______．

    A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists

    B.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity

    C.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo

    D.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo


    正确答案：B

  • 第2题：

    Kort nozzles are installed around the propellers of some vessels to ______.

    A.increase the thrust of the propeller

    B.protect the propeller from striking sawyers

    C.protect the propeller from striking barges towed on the hip

    D.protect the propeller from touching bottom in low water


    正确答案：A
    一些船舶装配在螺旋桨周围的导流管会减少螺旋桨的？推力。

  • 第3题：

    单选题
    To inflate a davit launched liferaft you（）.
    A

    initially connect the compressed air nozzle to the inflation tube

    B

    pull the inflation lanyard

    C

    connect the hand pump to the inflation tube and pump it up

    D

    connect the helium nozzle to the inflation tube


    正确答案： D
    解析： 暂无解析

  • 第4题：

    单选题
    The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to（）.
    A

    shield fire fighters from radiant heat

    B

    break up burning material

    C

    get the most water possible on the fire

    D

    drive heat and smoke ahead of the fire fighters


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?（）
    A

    The propeller hub taper and shaft keyway should be inspected for cracks or corrosion

    B

    The stern bearing alignment with the stern frame should be checked

    C

    The interior of the stern tube should be inspected for leaks

    D

    The shaft liner should be removed and inspected


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    A thrust bearing is used with a propulsion diesel engine to （）.
    A

    control axial movement of the crankshaft

    B

    transmit engine thrust to the propeller shaft

    C

    absorb vibrations in the propeller shafting

    D

    prevent propeller thrust from being transmitted to the hul


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    The （） engine is used for alternators and some times for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.
    A

    four-stroke

    B

    two-stroke

    C

    slow speed

    D

    reversible


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    The moisture equilibrium chart can be used to determine the（）.
    A

    Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists

    B

    Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity

    C

    Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo

    D

    Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    （） will be used to blow away soot and the combustion products from the tube surfaces.
    A

    The blow down valve

    B

    The scum valve

    C

    The air release cock

    D

    Scot-blower


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    The four-stroke engine is used for （） and sometimes for main propulsion with a gearbox to provide a propeller speed of between 90 to 120 rev/min.
    A

    alternator

    B

    turbo-charger

    C

    remote controller

    D

    windlass


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    Which object may be used during query optimization to improve the performance for a subset of SELECT queries?（）
    A

    MQT

    B

    Trigger

    C

    Read Only Cursor

    D

    Stored Procedure


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    （）is used to moor the ship to the seabed to keep it sationary.
    A

    The bulbous bow

    B

    The anchor

    C

    The bow thruster

    D

    The propeller


    正确答案： B
    解析： 暂无解析

  • 第13题：

    What is a cofferdam ________．

    A.Tube fitted to an ullage hole

    B.Area the product is loaded into

    C.Void or empty space separating two tanks

    D.Opening in the deck used for cleaning a tank


    正确答案：C

  • 第14题：

    单选题
    A(n) （） is a mechanical attack on the metal surface which may be due to a disturbance in the flow of the water over the blade of the propeller.
    A

    erosion

    B

    corrosion

    C

    pitting

    D

    dezincification


    正确答案： B
    解析： 暂无解析

  • 第15题：

    单选题
    Water fog from an all-purpose nozzle may be used to（）.
    A

    fight an electrical fire

    B

    fight a magnesium fire

    C

    eliminate smoke from a compartment

    D

    All of the above


    正确答案： B
    解析： 暂无解析

  • 第16题：

    单选题
    A heavy，thick-walled tube，usually steel，used between the drill pipe and the bit in the drill stem to weight the bit in order to improve its performance is called a（）.
    A

    heavy-walled drill pipe

    B

    tool joint

    C

    down hole tool

    D

    drill collar


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    Sidewise force of the propeller tends to throw a vessel’s stern to the right or left，depending on rotation. This force is caused by（）.
    A

    back current from the rudder

    B

    greater pressure on the right or left side of the propeller，depending on rotation

    C

    lower pressure on the right or left side of the propeller，depending on rotation

    D

    torque from the velocity and angle at which the surrounding water impinges upon the propeller blades


    正确答案： B
    解析： 暂无解析

  • 第18题：

    单选题
    The type of gauge most commonly used to measure pressure is the （）.
    A

    bimetallic type

    B

    diaphragm type

    C

    bourdon tube type

    D

    resistance-temperature type


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    The （） engine is used for alternators and sometimes for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.
    A

    four-stroke

    B

    two-stroke

    C

    slow speed

    D

    reversible


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    Dirt lodged on the nozzle valve seat of a fuel injection nozzle will cause（）
    A

    erosion and cratering of the nozzle orifices

    B

    fuel leakage into the nozzle drain line

    C

    fuel leakage before and after injection

    D

    insufficient fuel delivery though that nozzle


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Kort nozzles are installed around the propellers of some vessels to（）.
    A

    Increase the thrust of the propeller

    B

    Protect the propeller from striking sawyers

    C

    Prevent the propeller from striking barges towed on the ship

    D

    Prevent the propeller from touching bottom in low water


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    Bourdon Tube is probably the most commonly used （） measuring instrument.
    A

    the absolute pressure

    B

    the gauge pressure

    C

    the vacuum pressure

    D

    the differential pressure


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    A Kort nozzle is a(n)（）.
    A

    hollow tube surrounding the propeller used to improve thrust

    B

    nozzle attached to a firefighting hose

    C

    intake valve on a diesel engine

    D

    piston cylinder on a diesel engine


    正确答案： A
    解析： 暂无解析

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