Which statement is TRUE concerning the flash point of a substance ________．A.It is lower than the ignition temperatureB.It is the temperature at which a substance will spontaneously igniteC.It is the temperature at which a substance，when ignited，will cont

题目

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

相似考题

1.Concerning baby-sitting and managing a paper route, which of the following statement is true?A． Both call for daily service.B． Both call for a sense of responsibility.C． Neither is affected by bad weather.D． Neither is helpful to character development.

2.Which statement is true about FLUSH LOGS command?()A.It requires the RELOAD, FILE, and DROP privilegesB.It closes and reopens all log filesC.It closes and sends binary log files to slave serversD.It flushes dirty pages in the buffer pool to the REDO logs

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

4.Given:Which statement is true about the class of an object that can reference the variable base? ()A.It can be any class.B.No class has access to base.C.The class must belong to the geometry package.D.The class must be a subclass of the class Hypotenuse.

更多“Which statement is TRUE concerning the flash point of a substance ________.A.It is lower t ”相关问题

  • 第1题：

    Which statement concerning carbon dioxide is FALSE ________．

    A.It displaces the oxygen in the air

    B.It cannot be seen

    C.It cannot be smelled

    D.It is safe to use near personnel in a confined space


    正确答案：D

  • 第2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3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4题：

    You are underway with a tow consisting of six barges containing hazardous chemicals．Which statement is FALSE concerning a cargo information card ________．

    A.It must be carried in the pilothouse，readily available for each chemical carried

    B.It must be posted on the lead barge of the tow only

    C.It must be posted on each barge on the tow

    D.It contains information on procedure for spills or leaks


    正确答案：B

  • 第5题：

    Which statement is FALSE concerning the interleave depth value？（）

    • A、A higher interleave depth provides more protection from burst of noise on the HFC network
    • B、Higher interleave depth increase downstream latency
    • C、Lower interleave depth cause some packet loss on typical HFC networks
    • D、None ofthe above

    正确答案:D

  • 第6题：

    单选题
    Which one of following statement is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?（）
    A

    the direct acting relief valve is used for controlling lower flows and pressure

    B

    the pilot operated relief valve is used for controlling higher flows and pressure

    C

    the pilot operated relief valve is used for controlling lower flows and pressure

    D

    the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Which statement(s) is/are TRUE concerning crane cargo operations? （）
    A

    Do not exceed rated load capacity of crane and container spreader or slings

    B

    During any cargo handling operation，the safety of personnel is paramount

    C

    Cargo handlers must be outfitted with adequate protection from personal injury

    D

    All the above


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    Which statement concerning teams is true?
    A

    Nowadays teamwork is a popular concept.

    B

    All the companies put great emphasis on teams.

    C

    A good team involves close supervision of the team leader.

    D

    There’s nothing in common between a team and a group.


    正确答案： B
    解析：
    根据本文的第一句话“Teams are all the rage in the workplace today, and every organization speaks of the importance of teams.”，可以判断选项A与本句的意思相符合，此句中的固定短语all the rage的意思是“非常流行，风靡一时”，所以本题答案为A。

  • 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
    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11题：

    单选题
    Which statement is TRUE concerning apogean tides（）．
    A

    They occur only at quadrature

    B

    They occur when the Moon is nearest the Earth

    C

    They cause diurnal tides to become mixed

    D

    They have a decreased range from normal


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    At 0900，you take the following radar ranges: Watch Hill Point 5.4 miles; Block Island Grace Point 8.3 miles. Which statement is TRUE? （）
    A

    You are within 3 nautical miles of the coast

    B

    The bottom in the area is sand and gravel

    C

    The fix is indeterminate

    D

    You are governed by the Inland Rules


    正确答案： C
    解析： 暂无解析

  • 第13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14题：

    Which statement is TRUE concerning inert gas systems on tankers ________．

    A.Flue gases from the ship's boilers are used in some systems

    B.The gas is helium

    C.Using the system accelerates the rusting of the tanks

    D.All of the above


    正确答案：A

  • 第15题：

    Which statement is TRUE of a gasoline spill ________．

    A.It is visible for a shorter time than a fuel oil spill

    B.It is not covered by the pollution laws

    C.It does little harm to marine life

    D.It will sink more rapidly than crude oil


    正确答案：A

  • 第16题：


    Which of the following concerning natural gas is NOT true？( )

    A.It was not favored in the past.
    B.It is easily affected by the change of the climate.
    C.People are beginning to realize its value.
    D.It is increasingly cheaper to be liquefied.

    答案：B
    解析：

  • 第17题：

    单选题
    Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane（）.
    A

    Taglines are wire rope purchases that raise and lower the jib

    B

    Taglines are wire ropes for horizontal positioning of the rider block

    C

    Taglines can be fastened to corners of vehicles or containers

    D

    The crane might not have taglines installed in its rigging system


    正确答案： D
    解析： 暂无解析

  • 第18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19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20题：

    单选题
    Which statement is TRUE concerning the ventilation of engine and fuel tank compartments on uninspected towing vessels using fuel with a flash point of 100°F?（）
    A

    There shall be at least 3 ventilator ducts open to the atmosphere

    B

    At least one exhaust duct shall extend from the open atmosphere to the lower portion of the bilge

    C

    At least one intake duct shall extend from the open atmosphere to the lower portion of the bilge

    D

    Only vessels using fuel with a flash point above 110°F need ventilate engine and fuel compartments


    正确答案： D
    解析： 暂无解析

  • 第21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22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23题：

    单选题
    Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）
    A

    Put one line at the low point and one at the high point of the bollard so they don't touch

    B

    Take the eye of the second line up through the eye of the first line before putting the second line on the bollard

    C

    Never put two mooring lines on the same bollard

    D

    The mooring line forward should be put on the bollard first


    正确答案： C
    解析： 暂无解析

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