The flash point of a petroleum product is an indication of its ______.A.viscosityB.pour pointC.volatilityD.lower explosive limit

题目

The flash point of a petroleum product is an indication of its ______.

A.viscosity

B.pour point

C.volatility

D.lower explosive limit


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更多“The flash point of a petroleum product is an indication of its ______.A.viscosityB.pour pointC.volatilityD.lower explosive limit”相关问题
  • 第1题:

    A petroleum liquid has a flash point of 85°F. This is a grade ______.

    A.B flammable liquid

    B.C flammable liquid

    C.D combustible liquid

    D.E combustible liquid


    正确答案:C

  • 第2题:

    What refers to the depth of a petroleum product in a tank ________.

    A.Innage

    B.Outage

    C.Thievage

    D.Ullage


    正确答案:A

  • 第3题:

    The minimum temperature required to ignite gas or vapor without a spark or flame being present is called ______.

    A.Flash point

    B.Fire point

    C.Autoignition temperature

    D.Lower explosive limit


    正确答案:C

  • 第4题:

    POP是()的缩写

    • A、Product of Purchase
    • B、Point of Purchase
    • C、Purchase of Point
    • D、Purchase of Product

    正确答案:B

  • 第5题:

    单选题
    A fuel-air mixture below the lower explosive limit is too().
    A

    rich to burn

    B

    lean to burn

    C

    cool to burn

    D

    dense to burn


    正确答案: D
    解析: 暂无解析

  • 第6题:

    单选题
    The cetane rating of diesel fuel is an indication of the()
    A

    ignition quality of the fuel

    B

    calorific value of the fuel

    C

    flash point of the fuel

    D

    rate of fuel consumption


    正确答案: A
    解析: 暂无解析

  • 第7题:

    单选题
    When considering the lowest fuel system operating temperature, () are important.
    A

    specific gravity or relative density

    B

    open flash point and closed flash point values

    C

    higher calorific and lower calorific values

    D

    cloud point and pour point values


    正确答案: D
    解析: 暂无解析

  • 第8题:

    单选题
    A petroleum liquid has a flash point of 135°Fahrenheit. This liquid is classed as a grade ().
    A

    B flammable liquid

    B

    C flammable liquid

    C

    D combustible liquid

    D

    E combustible liquid


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    Which of the following statements is correct concerning the “flash point ” of a liquid?()
    A

    It is lower than the ignition temperature

    B

    It is the temperature at which a substance will spontaneously ignite

    C

    It is the temperature at which a substance, when ignited, will continue to bum

    D

    It is the temperature at which the released vapors will fall within the explosive range


    正确答案: A
    解析: 暂无解析

  • 第10题:

    单选题
    The explosive range of a mixture of flammable vapors is specified as a percentage of ().
    A

    flammable vapor by volume in air

    B

    oxygen present to support combustion

    C

    the temperature of the flash point

    D

    the lower limit of explosibility of the mixture


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    The minimum concentration of a vapor in air which can form an explosive mixture is called the().
    A

    auto-ignition point

    B

    flash point

    C

    lower explosive limit (LEL)

    D

    threshold limit value (TLV)


    正确答案: B
    解析: 暂无解析

  • 第12题:

    单选题
    A petroleum liquid has a flash point of 85°F. This is a grade ().
    A

    B flammable liquid

    B

    C flammable liquid

    C

    D combustible liquid

    D

    E combustible liquid


    正确答案: A
    解析: 暂无解析

  • 第13题:

    Which statement is TRUE concerning the flash point of a substance ________.

    A.It is lower than the ignition temperature

    B.It is the temperature at which a substance will spontaneously ignite

    C.It is the temperature at which a substance,when ignited,will continue to burn

    D.It is the temperature at which the released vapors will fall within the explosive range


    正确答案:A

  • 第14题:

    A fuel-air mixture below the lower explosive limit is too ______.

    A.Rich to burn

    B.Lean to burn

    C.Cool to burn

    D.Dense to burn


    正确答案:B

  • 第15题:

    Combustible gas indicators measure the presence of combustible gas as a percentage of the____.

    A.flash point

    B.upper explosive limit

    C.lower explosive limit

    D.fire point


    正确答案:C
    易燃气体检测仪测量存在的易燃气体占爆炸下限浓度的百分比。

  • 第16题:

    单选题
    A combustible gas indicator meter is calibrated to read the percentage of().
    A

    vapor to oxygen

    B

    the flammable limit concentration

    C

    the autoignition concentration

    D

    the lower explosive limit concentretion


    正确答案: B
    解析: 暂无解析

  • 第17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18题:

    单选题
    Which of the petroleum products listed has the lowest flash point?()
    A

    Hydraulic oil

    B

    Lubricating oil

    C

    Diesel oil

    D

    Refrigeration oil


    正确答案: C
    解析: 暂无解析

  • 第19题:

    单选题
    Carbon dioxide flooding system is used for extinguishing fires because it reduces the concentration of oxygen in the air to().
    A

    flashing point

    B

    combustion point

    C

    auto-ignition point

    D

    lower explosive limit


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    The flash point of a petroleum product is an indication of its()
    A

    viscosity

    B

    pour point

    C

    volatility

    D

    lower explosive limit


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    Combustible gas indicators measure the presence of combustible gas as a percentage of the().
    A

    flash point

    B

    upper explosive limit

    C

    lower explosive limit

    D

    fire point


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    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 ().
    A

    flash point

    B

    auto-ignition point

    C

    volatility point

    D

    upper explosive limit


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the().
    A

    flash point

    B

    fire point

    C

    upper explosive limit

    D

    lower explosive limit


    正确答案: C
    解析: 暂无解析