What is the best instrument for establishing a safe working area before welding in a confined space?A.An oxygen indicatorB.A combustible gas indicatorC.A combination combustible gas and oxygen indicatorD.A flame safety lamp

题目

What is the best instrument for establishing a safe working area before welding in a confined space?

A.An oxygen indicator

B.A combustible gas indicator

C.A combination combustible gas and oxygen indicator

D.A flame safety lamp

相似考题

1.What ________ the safe working load of the derrick?A.isB.beC.areD.has

2.What is the best explanation to the underline phrase "to secure the smooth withdrawal of ships"?A.To withdraw a ship mid make it in a safe conditionB.To secure the life of a ship and recycle itC.To break a wreckD.To finish the service of a ship and break it without other problems

3.Before welding in a tank that has carried petroleum products，the tank must be certified by ______.A.the Coast GuardB.the ABSC.the shipyard fire departmentD.a certified marine chemist

4.Could you tell the working parts of a gas welding gun?

更多“What is the best instrument for establishing a safe working area before welding in a confi ”相关问题

  • 第1题：

    Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure?

    A.Tearing through the member is more likely in this type connection

    B.The weld may be broken by the stresses caused by riveting

    C.The weld increases the tensile stress on the rivet heads

    D.The welding must be completed before the riveting commences


    正确答案：D

  • 第2题：

    农村饮水安全（safe drinking water in rural area）


    正确答案: 村镇居民能及时得到充足、卫生饮用水的简称。

  • 第3题：

    Your network trainee asks you, in the context of IPv6 and OSPF, what best des cribes a type 9 LSA? What should you tell her?（）

    • A、Link LSA
    • B、Interarea prefix LSA for ABRs
    • C、Router LSA
    • D、Switch LSA
    • E、Intra - area prefix LSA
    • F、None of the above

    正确答案:E

  • 第4题：

    安全负荷量（）

    • A、the load
    • B、safe working load
    • C、safe working
    • D、safe loading work

    正确答案:B

  • 第5题：

    “SWL” means （）.

    • A、safe working load
    • B、safe work load
    • C、safe worked load
    • D、safely working load

    正确答案:A

  • 第6题：

    A CIO contacts you for an RFP response for an Intel-based opportunity a day before its due date. Your competitor is HP， and you have limited time to complete the RFP. Your technical product specialist is working on another project.  What is the best source of information to position IBM against HP？ （）

    • A、www.ibm.com
    • B、IBM Competeline
    • C、www.hp.com
    • D、Your sales manager

    正确答案:B

  • 第7题：

    单选题
    Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure? （）
    A

    Tearing through the member is more likely in this type connection

    B

    The weld may be broken by the stresses caused by riveting

    C

    The weld increases the tensile stress on the rivet heads

    D

    The welding must be completed before the riveting commences


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    Before welding is permitted on a fuel tank, it must be certified or declared （）
    A

    safe for becoming rounded

    B

    safe for hot work

    C

    not safe for personnel

    D

    not safe for hot work


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    If emergency welding repairs must be made to the upper area of a fuel tank, the tank and/or adjacent compartments may need to be （）
    A

    gas freed

    B

    inerted

    C

    filled with water

    D

    all of the above as necessary


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Your network trainee asks you, in the context of IPv6 and OSPF, what best des cribes a type 9 LSA? What should you tell her?（）
    A

    Link LSA

    B

    Interarea prefix LSA for ABRs

    C

    Router LSA

    D

    Switch LSA

    E

    Intra - area prefix LSA

    F

    None of the above


    正确答案： F
    解析： 暂无解析

  • 第11题：

    单选题
    The safe working load of the （）is 100 tons.
    A

    single derrick

    B

    derrick

    C

    heavy derrick

    D

    deck


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    What is the best way to revise sentence 4 (reproduced below)?Safe but not boring, a good combination.
    A

    (As it is now)

    B

    Safe but not boring. A good combination.

    C

    It’s safe but not boring, which is a good combination.

    D

    It’s safe but not boring; therefore it was a good combination.

    E

    Safe but not boring and a good combination.


    正确答案： E
    解析：
    A项为一个句子片段，B项包含两个句子片段。C项语法正确，使用了一个简单句短语和一个较长的复杂的短语，使句子结构多样化。D项冗杂，且过去时态“was”的使用没有必要。E项改变了单词的顺序，且不符合逻辑。

  • 第13题：

    In relation to cargo gear, what does SWL mean ?______.

    A.Safe working load

    B.Ship’s working lift

    C.Starboard wing lift

    D.Stress, weight, load


    正确答案：A
    关于货物设备，SWL是什么意思？安全工作负荷

  • 第14题：

    What are two uRPF working modes？（）

    • A、express mode
    • B、safe mode
    • C、loose mode
    • D、strict mode
    • E、tight mode

    正确答案:C,D

  • 第15题：

    Several links have been broken so th at for the next day or two, what was formerly a contiguous area 0 has been broken into two parts. However, both parts of area 0 have working links into area 1 using routers with RID 1.1.1.1 and 2.2.2.2. Which answers list the command on the router with RID 1.1.1.1 to create a virtual link to help solve this temporary problem?（）

    • A、area 0 virtual - link 2.2.2.2
    • B、area 1 virtual - link 2.2.2.2
    • C、area 0 source - rid 1.1.1.1 dest - rid 2.2.2.2
    • D、virtual - link transit - area 1 RID 2.2.2.2

    正确答案:B

  • 第16题：

    Sailors should know the （）(安全工作负荷量)of derricks.

    • A、safe working load
    • B、safety work load
    • C、safe work load
    • D、safe working loading

    正确答案:A

  • 第17题：

    A frustrated customer has called about their computer that is not functioning correctly. Which of the following is the BEST question to ask the user?（）

    • A、“Can you avoid using the PC that crashed?”
    • B、“What was the last thing that occurred before the PC had problems?”
    • C、“What were you doing before the PC went down?”
    • D、“What was the last thing you did before the PC crashed?”

    正确答案:B

  • 第18题：

    单选题
    Safe welding practice requires （）
    A

    checking the area for items that may catch fire

    B

    that a fire watch be posted

    C

    checking for the explosive gases

    D

    all of the above


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    Which of the following is the mysterious area of music and brain facing scientists?
    A

    The difference between people with musical ancestors and tin-eared people in evolution.

    B

    The working mechanics of music and musical instrument.

    C

    The function of music in the area of neurology and biology.

    D

    The difference between people with mental illness and people with deaf ear to music.


    正确答案： D
    解析：
    细节题。第五段首句指出“这些研究并不能解答音乐和大脑之间的奥秘”，接下来提到的第二个问题是“Did our musical ancestors have an evolutionary edge over their tin-eared fellow?”，因此选项A符合题意。

  • 第20题：

    单选题
    A frustrated customer has called about their computer that is not functioning correctly. Which of the following is the BEST question to ask the user?（）
    A

    “Can you avoid using the PC that crashed?”

    B

    “What was the last thing that occurred before the PC had problems?”

    C

    “What were you doing before the PC went down?”

    D

    “What was the last thing you did before the PC crashed?”


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    The most important factor for establishing a good working relationship with the boss is ______.
    A

    high expectations

    B

    quick feedback

    C

    frequent criticism

    D

    effective communication


    正确答案： D
    解析：
    考点:细节辨认题。由文章第三段最后一句话But how does this help you establish a meaningful working relationship with your boss? The key is communication.可知，与上司建立良好工作关系的关键是交流。其余选项均不符合题意，故排除。

  • 第22题：

    单选题
    The safe working load of each derrick is five （）.
    A

    tones

    B

    tonnages

    C

    tons

    D

    dunnage


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    He read the _____ carefully before assembling the instrument.
    A

    instructions

    B

    directions

    C

    notices

    D

    advertisements


    正确答案： C
    解析：
    句意：组装仪器之前，他仔细阅读了说明书。instructions指“操作指南，说明书”。

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