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Fires resulting from spontaneous(自发的) combustion are usually caused by the improper disposal of______.A.cigarette butts(烟头)B.oily ragsC.burner torchesD.lighted matches

题目

Fires resulting from spontaneous(自发的) combustion are usually caused by the improper disposal of______.

A.cigarette butts(烟头)

B.oily rags

C.burner torches

D.lighted matches


相似考题

4.The Smokey Bear(护林熊) fire prevention program has resulted in a savings of $20 billion on all federal(联邦的), state and private forested land(私有林地). In 1941, 208,000 forest fires burned 30 million acres, while in 1981, fewer than 165,000 fires burned about three million acres. While forest usage has increased, the proportion(比例) of human-caused fires has remained stable; people still cause nine out of ten forest fires. But the biggest cause of fires is arson(纵火), accounting for(引起) 34 percent of forest fires in 1981.1. According to the passage, use of forested land has ____.A、stabilizedB、been privatizedC、decreasedD、risen2. According to the passage, in 1941 forest fires burned ____.A、less acres than in 1981B、3 million acresC、ten times as many acres as in 1981D、20 million acres more than in 19813. According to the passage, the number of human-caused fires ____.A、has remained the same proportionatelyB、has increasedC、is the same as the arson casesD、accounts for 34 per cent of forest fires4. According to the passage, which of the following statements is true?A、Nine out of ten fires are caused by arsonists.B、The Smokey Bear program has saved the nation a lot of money.C、There are more forest fires now than before.D、People do not use the forests as much as they did in the past.5. It may be inferred from the passage that ____.A、the majority of fires are caused by humansB、arson is increasing every yearC、more acres are destroyed by fire each yearD、fewer people are using the forests

更多“Fires resulting from spontaneous(自发的) combustion are usually caused by the improper dis ”相关问题
  • 第1题:

    Spontaneous combustion is caused by ______.

    A.An outside heat source heating a substance until it ignites

    B.Conduction of heat through a wall of material to the substance

    C.Chemical action within a substance

    D.All of the above


    正确答案:C

  • 第2题:

    Which substance might be subject to spontaneous combustion ________.

    A.Coal

    B.Scrap rubber

    C.Leather

    D.All of the above


    正确答案:D

  • 第3题:

    Which of the following coverage usually covers partial loss or damage resulting from natural calamities?()

    • A、ICC(B)
    • B、All risks
    • C、WA
    • D、FPA

    正确答案:A,B,C

  • 第4题:

    单选题
    Fires resulting from spontaneous combustion are usually caused by the improper disposal of().
    A

    cigarette butts

    B

    oily rags

    C

    burner torches

    D

    lighted matches


    正确答案: D
    解析: 暂无解析

  • 第5题:

    单选题
    The most likely place for a fire to start through the process of spontaneous combustion is in ().
    A

    an electrical switchboard

    B

    the pressure tanks

    C

    the fuel oil tanks

    D

    the oily rag bin


    正确答案: D
    解析: 暂无解析

  • 第6题:

    单选题
    The diameter of a piston is usually less at the crown than at the skirt, in order to ().
    A

    facilitate the installation of piston rings

    B

    allow for the expansion of the piston during operation

    C

    prevent crankcase vapors from entering the combustion chamber

    D

    reduce wearing of the upper cylinder liner


    正确答案: A
    解析: 暂无解析

  • 第7题:

    单选题
    High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by ().
    A

    engine overload

    B

    low combustion temperature

    C

    plugged fuel nozzle holes

    D

    excessive compression pressure


    正确答案: C
    解析: 暂无解析

  • 第8题:

    单选题
    Because of the resulting higher pressures in the cylinder from the combustion of this greater mass of fuel, and the larger diameters, the liner must be made () at the top to accommodate the higher stresses, and prevent cracking of the material.
    A

    thinner

    B

    thicker

    C

    smoother

    D

    rougher


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    The longer the ignition delay period resulting from improper use of low cetane fuel, the ()
    A

    less fuel will enter the cylinder

    B

    higher the cylinder combustion temperature

    C

    more complete the fuel combustion

    D

    more rapid the rise in combustion pressure


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    ()is the most liable to spontaneous combustion.
    A

    Cement

    B

    Chinaware

    C

    Fish meal

    D

    Steel products


    正确答案: C
    解析: 暂无解析

  • 第11题:

    单选题
    Black smoke coming from a boiler can be caused by ().
    A

    low water level

    B

    low oil pressure

    C

    excessively high fuel pressure

    D

    an improper air/fuel ratio


    正确答案: B
    解析: 暂无解析

  • 第12题:

    单选题
    In which of the areas listed is a fire resulting from spontaneous combustion most likely to occur?()
    A

    Engine room bilges

    B

    Paint locker

    C

    Battery storage locker

    D

    Fuel oil tank


    正确答案: A
    解析: 暂无解析

  • 第13题:

    ______ is the most liable to spontaneous combustion.

    A.Cement

    B.Chinaware

    C.Fish meal

    D.Steel products


    正确答案:C

  • 第14题:

    The most frequent cause of fires aboard tankers is due to ______.

    A.Improper gas freeing

    B.Leaking of cargo pump glands

    C.Tobacco smoking

    D.Spontaneous combustion


    正确答案:C

  • 第15题:

    单选题
    Spontaneous combustion could occur in()
    A

    paint thinner in an open can

    B

    fuel accumulation in the bilge

    C

    oily rags in an unvented compartment

    D

    gasoline stored in steel drums


    正确答案: C
    解析: 暂无解析

  • 第16题:

    单选题
    White smoke exhausting from a diesel engine can be caused by ()
    A

    low combustion temperature

    B

    a leaking fuel nozzle check valve

    C

    late fuel injection

    D

    plugged oil-scraper ring hole


    正确答案: A
    解析: 暂无解析

  • 第17题:

    单选题
    White smoke exhausting from a diesel engine can be caused by a ()
    A

    high combustion temperature

    B

    high compression pressure

    C

    cracked cylinder liner

    D

    fuel with a high vanadium content


    正确答案: A
    解析: 暂无解析

  • 第18题:

    单选题
    Owners are to be responsible for loss of or damage to the goods or delay in delivery of the goods only in case the loss,damage or delay has been caused by the improper or negligent stowage of the goods.This means that().
    A

    Owners are to be responsible for loss or damage even such loss or damage is not caused by the improper stowage

    B

    Owners are only responsible for the loss or damage or delay caused by improper or negligent stowage

    C

    Both A and B are right

    D

    Both A and B are wrong


    正确答案: C
    解析: 暂无解析

  • 第19题:

    单选题
    The above-mentioned damage has caused from improper fitting so that we () you () for making compensation.
    A

    hold;responsibility

    B

    ask;responsibility

    C

    hold;responsible

    D

    require;responsible


    正确答案: A
    解析: 暂无解析

  • 第20题:

    单选题
    If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in ().
    A

    the crankcase explosion

    B

    lifting of the cylinder safety valve

    C

    a scavenge fire

    D

    opening of the manhole


    正确答案: A
    解析: 暂无解析

  • 第21题:

    单选题
    The most important principle in the stowage is().
    A

    to ensure the safety of the ship and protect the cargo from being damaged

    B

    to avoid the rearrangement of the cargo loaded on board

    C

    to reject the damaged cargo during loading

    D

    to prevent the spontaneous combustion of coal and grain


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    Sludge formation in a diesel engine lube oil system is caused by()
    A

    carbonization of oils from the combustion chambers

    B

    emulsions of lube oil and water

    C

    coagulation of unburned fuel below the piston rings

    D

    all of the above


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    For cargoes()grain meals,coal,ventilation is needed to prevent them()spontaneous combustion.
    A

    i.e./of

    B

    for instance/away

    C

    for example/off

    D

    such as/from


    正确答案: B
    解析: 暂无解析