Reid vapor pressure is ______．A.exerted by liquid cargo on the sides of a tankB.exerted by liquid cargo on a cargo hose bodyC.the lowest temperature and pressure that will cause a flammable liquid to give off vaporsD.a measurement of the amount of flammab

题目

Reid vapor pressure is ______．

A.exerted by liquid cargo on the sides of a tank

B.exerted by liquid cargo on a cargo hose body

C.the lowest temperature and pressure that will cause a flammable liquid to give off vapors

D.a measurement of the amount of flammable vapors given off by a liquid at a certain temperature

相似考题

1.Liquid water changes to vapor, ___ is called evaporation.A、whichB、thatC、whatD、this

2.Regulations require that cargo pumps in tankers carrying grade D liquid cargo shall be isolated from sources of vapor ignition by ______．A.CofferdamsB.Gastight bulkheadsC.Passageways or living quartersD.General cargo spaces

3.What is a wet cargo ________．A.A liquid cargo carried in the deep tanksB.A canned or bottled liquid such as beerC.A cargo that contains hygroscopic moistureD.A cargo particularly susceptible to damage by moisture

4.How does an inert gas system on a tanker function to prevent explosions in cargo tanks?A.De-energizes the "charged mist" effectB.Maintains a positive pressure on the vent header to cool the flammable vaporsC.Inert gas filters out the flammable vapors from the cargo tank spacesD.Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit

参考答案和解析
正确答案：D
更多“Reid vapor pressure is ______.A.exerted by liquid cargo on the sides of a tankB.exerted by ”相关问题

  • 第1题：

    You are on a tanker designed to carry molten sulfur．Which statement is TRUE ________．

    A.There must be two portable toxic vapor detectors on board

    B.The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volume

    C.Cargo temperature may be taken by portable thermometers

    D.The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them


    正确答案：C

  • 第2题：

    A heated bulkhead has the effect on a hygroscopic commodity of ______.

    A.causing moisture to accumulate against the bulkhead

    B.lowering the vapor pressure of the commodity

    C.lowering the dew point of the air

    D.raising the vapor pressure of the commodity


    正确答案：D
    加热舱壁会使液体货物的蒸汽压力升高。

  • 第3题：

    液体散货用泵装卸的。（）

    • A、Liquid cargo is loaded and discharged by pumps.
    • B、Liquid cargo is loaded and discharged by tubes.
    • C、Liquid bulk cargo is loaded and discharged by tubes.
    • D、Liquid bulk cargo is loaded and discharged by pumps.

    正确答案:D

  • 第4题：

    The （）（干货船 ）can’t carry wet cargo.

    • A、liquid cargo ship
    • B、drummed cargo
    • C、dry cargo ship
    • D、barge

    正确答案:C

  • 第5题：

    单选题
    Reid vapor pressure is（）.
    A

    exerted by liquid cargo on the sides of a tank

    B

    exerted by liquid cargo on a cargo hose body

    C

    the lowest temperature and pressure that will cause a flammable liquid to give off vapors

    D

    a measurement of the amount of flammable vapors given off by a liquid at a certain temperature


    正确答案： D
    解析： 暂无解析

  • 第6题：

    单选题
    What is the purpose of pressure-vacuum relief valves? （）
    A

    Regulation of discharge pressure from cargo pumps

    B

    Maintaining constant velocity in cargo lines

    C

    Regulation of suction head on cargo pumps

    D

    To maintain a tank or void at atmospheric pressure


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Refrigerant enters the condenser as a （）.
    A

    high pressure liquid

    B

    low pressure vapor

    C

    high pressure vapor

    D

    low pressure liquid


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    A heated bulkhead has the effect on a hygroscopic commodity of（）.
    A

    causing moisture to accumulate against the bulkhead

    B

    lowering the vapor pressure of the commodity

    C

    lowering the dew point of the air

    D

    raising the vapor pressure of the commodity


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    According to regulations，access to a cargo pumproom in a tanker carrying grades C or D liquid cargo shall be（）.
    A

    from areas equipped with power ventilation

    B

    only from enclosed areas free from sources of vapor ignition

    C

    from the open deck

    D

    from within the vessel


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Regulations require that cargo pumps in tankers carrying grade D liquid cargo shall be isolatedfrom sources of vapor ignition by（）.
    A

    cofferdams

    B

    gastight bulkheads

    C

    passageways or living quarters

    D

    general cargo spaces


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    A liquid indicator sight glass is useful in determining whether or not a refrigeration system is sufficiently chargedIt is generally located in the（）.
    A

    high pressure liquid line

    B

    low pressure liquid line

    C

    high pressure vapor line

    D

    low pressure vapor line


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Access to a cargo pumproom on a tanker carrying grades A，B，C or D liquid cargoes shall be（）.
    A

    at least 13.1 feet away from the galleys，living quarters or navigation spaces

    B

    from the open deck

    C

    only from areas equipped with power ventilation systems

    D

    isolated from any part of the vessel which normally contains sources of vapor ignition


    正确答案： C
    解析： 暂无解析

  • 第13题：

    A microbarograph is a precision instrument that provides a ______．

    A.charted record of atmospheric temperature over time

    B.charted record of atmospheric pressure over time

    C.graphic record of combustible gases measured in an atmosphere

    D.graphic record of vapor pressure from a flammable/combustible liquid


    正确答案：B

  • 第14题：

    In liquid cargo ships, the（） is divided into tanks.

    • A、cargo space
    • B、hold
    • C、hatch
    • D、room

    正确答案:A

  • 第15题：

    Cargo may be divided into two basic types:（）.

    • A、bulk cargo and container cargo
    • B、bulk cargo and general cargo
    • C、bulk cargo and liquid cargo
    • D、dry cargo and liquid cargo

    正确答案:D

  • 第16题：

    In（） ships, the cargo space is divided into tanks.

    • A、container
    • B、dry cargo
    • C、bulk
    • D、liquid cargo

    正确答案:D

  • 第17题：

    单选题
    How does an inert gas system on a tanker function to prevent explosions in cargo tanks? （）
    A

    De-energizes the charged mist effect

    B

    Maintains a positive pressure on the vent header to cool the flammable vapors

    C

    Inert gas filters out the flammable vapors from the cargo tank spaces

    D

    Inert gas dilutes the flammable vapor and air concentrations to keep them below the lower explosive limit


    正确答案： D
    解析： 暂无解析

  • 第18题：

    单选题
    The designations A，B，C，D and E grades of cargo refer to the（）.
    A

    degrees of quality of petroleum products

    B

    flash point range and Reid vapor pressure index of petroleum products

    C

    grades of crude oil

    D

    pour point，color，and viscosity index of petroleum products


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    Vapor given off by a flammable liquid will burn when ignited provided（）
    A

    the vapor and air mixture is too rich

    B

    it is mixed with certain proportions of air

    C

    the vapor is too little compared to the air

    D

    it is of heavy toxicity


    正确答案： A
    解析： 暂无解析

  • 第20题：

    问答题
    The difference between a liquid and a gas is obvious (1)____ the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and fills it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the space available; it must (2)____ be kept in a closed container, as in the (3)____ of a planet’s atmosphere. The distinction was a prominent feature of early theories (4)____(describe) the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be “dissolved” in a vapor without losing its identity, and another theory held that the two phases are made up of different kinds of molecules (分子). The theories now prevailing (5) t____ a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter (6)____ have no permanent structure, and they both flow easily. They are fluids.The (7)____(fundament) similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. Suppose a closed container partially filled with a liquid is heated. The liquid expands, or in other (8)____, becomes less dense; some of it evaporates. In contrast, the vapor above the liquid surface becomes dense as the evaporated molecules are added to it. The combination of temperature and pressure (9)____ which the densities become equal is called the critical point. Above the critical point the liquid and the gas can no longer be (10)____(distinguish); there is a single, undifferentiated fluid phase of uniform density.

    正确答案：
    1.on 根据后面的the conditions of可知此处填on。on the conditions of在…条件下。
    2.therefore 这里表因果关系,所以用therefore。句意:气体容易扩散,所以必须保存在密闭的容器里。
    3.case in the case of在…的情况下,就…而言。根据上下文,这里是说“必须将气体存放在一个密封的容器里,如同一颗行星的大气一样。”
    4.describing 本句中的describe的逻辑主语为theories,故应用现在分词。同时,describe这一动作只说明一种事实,并不与其他动词作时间上的先后比较,不必用完成时。
    5.take take approach采用…方法,符合句意。
    6.that that引导定语从句,修饰forms of matter。
    7.fundamental 句意:液体与气体之间的根本相似性在温度和压强有所提高时变得十分明显。
    8.words in other words换句话说。
    9.at 句意:使液体和气体密度相同的那个状态下的温度和压力被称作临界点。句中的temperature and pressure是先行词,需要一个关系词引导一个定语从句修饰先行词。特定数值的temperature和pressure与at搭配,意为“在某个温度和压力下”。
    10.distinguished 句意:在临界点之上时,气体和液体就很难再区分开来。
    解析： 暂无解析

  • 第21题：

    单选题
    A microbarograph is a precision instrument that provides a（）.
    A

    charted record of atmospheric temperature over time

    B

    charted record of atmospheric pressure over time

    C

    graphic record of combustible gases measured in an atmosphere

    D

    graphic record of vapor pressure from a flammable/combustible liquid


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Regulations require that access to a cargo pumproom in a tanker carrying grade D liquid cargo，shall be（）.
    A

    away from galleys，living quarters，or navigation spaces

    B

    only from areas equipped with power ventilation systems

    C

    from the open deck

    D

    isolated from sources of vapor ignition


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    What is the substance called which can readily be converted from a liquid into a vapor, and also from a vapor into liquid with a reasonably narrow range of pressure?（）
    A

    Refrigerator

    B

    Refrigerant

    C

    Cooling medium

    D

    Brine


    正确答案： A
    解析： 暂无解析

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