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Before welding can be done in a tank that has previously carried petroleum products，a certificate must be obtained from ________ ．A.the customsB.the Register Bureau of shippingC.the shipyard fire departmentD.a certified gas chemist

题目

Before welding can be done in a tank that has previously carried petroleum products，a certificate must be obtained from ________ ．

A.the customs

B.the Register Bureau of shipping

C.the shipyard fire department

D.a certified gas chemist

相似考题

1.Never before in China ________ for the farmers.A.has so much been doneB.have so much been doneC.has been done so muchD.so much have been done

2.Within the team, a work plan can tell each member what()and why.A. is being doneB. has doneC. has been done

3.A small child has to learn to keep its ( ) before he can walk far.A. borderB. blockC. baggageD. balance

4.() they are doing has never been done before.A、ThatB、WhatC、Whether

更多“Before welding can be done in a tank that has previously carried petroleum products,a cert ”相关问题

  • 第1题：

    Before petroleum______, another way has to be found.

    A、takes out

    B、runs out

    C、makes out

    D、works out


    参考答案：B

  • 第2题：

    Before welding can be done in a tank that has carried petroleum products，a certificate must be obtained from ______.

    A.the customs

    B.the Register Bureau of shipping

    C.the shipyard fire department

    D.a certified gas chemist


    正确答案：D

  • 第3题：

    Which statement about entering into a tank which has been sealed for a long time is TRUE ________．

    A.The tank should be tested only once to ensure the oxygen content is at least 14% before entry

    B.The tank must be tested at frequent intervals to ensure that hazardous gasses have not regenerated

    C.The tank need not be tested for oxygen content if it is ventilated for more than 24 hours

    D.If the oxygen content tests at less than 12% you should wear an approved gas mask


    正确答案：B

  • 第4题：

    When a non-volatile cargo is carried in a tank that has not been previously gas freed，then that tank shall ______．

    A.be purged with hydrocarbon gas prior to loading

    B.be gas-freed after loading operations

    C.not be maintained in an inert condition

    D.be maintained in an inert condition


    正确答案：D

  • 第5题：

    （）they are doing has never been done before.

    AThat

    BWhat

    CWhy

    DWhether


    B
    略

  • 第6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7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
    Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an（）.
    A

    Orsat apparatus

    B

    flame safety lamp

    C

    Halide torch

    D

    combustible gas indicator


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by （）.
    A

    sounding the tank

    B

    waiting for the vessel to list

    C

    examining tank boundaries

    D

    checking fuel oil strainers


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    （）they are doing has never been done before.
    A

    That

    B

    What

    C

    Why

    D

    Whether


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an ____.

    A.Orsat apparatus

    B.flame safety lamp

    C.Halide torch

    D.combustible gas indicator


    正确答案：D

  • 第14题：

    Before welding in a tank that has carried petroleum products，the tank must be certified by ______.

    A.the Coast Guard

    B.the ABS

    C.the shipyard fire department

    D.a certified marine chemist


    正确答案：D

  • 第15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16题：

    All that can be done．

    A.have been done
    B.have done
    C.has been done
    D.has done

    答案：C
    解析：

  • 第17题：

    单选题
    Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because（）.
    A

    a subsequent temperature rise will cause the cargo to overflow

    B

    air pockets may cause the cargo to bubble out of the ullage hole

    C

    the increased viscosity of the product requires higher loading pressure which increases the chances of a spill

    D

    the tank valve may be stiff and a spill will occur before the valve can be closed


    正确答案： B
    解析： 暂无解析

  • 第18题：

    单选题
    He has never done this type of work before; I am not sure how he will fit（）with it.
    A

    in

    B

    on

    C

    into

    D

    up


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.
    A

    open the bypass line

    B

    cut in the lube oil cooler

    C

    pressurize the lube oil system

    D

    top off the expansion tank


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    A tank which has been sealed for a long period of time can be dangerous because （）.
    A

    steel surfaces consume oxygen by rusting

    B

    sealed tanks usually form a vacuum

    C

    moisture condenses in the tank, displacing the oxygen

    D

    most tank coatings give off poisonous vapors in the presence of moisture


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    Which step is NOT generally taken when gas-freeing a tank?（）.
    A

    Washing the tank interior with sea water

    B

    Application of degreasing solvents

    C

    Removal of corrosion products and sludge

    D

    Fresh air ventilation


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    A tank has been sealed and unventilated for a long period of timeWhich of the following conditions does this indicate?（）
    A

    The tank is safe to enter

    B

    The tank is especially dangerous to enter

    C

    Carbon monoxide is present

    D

    Water vapor present when the tank was sealed has oxidized


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    Which of the following needs to be done before a hard drive can be formatted?（）
    A

    Labeled

    B

    Rebooted

    C

    Initialized

    D

    Defragmented


    正确答案： A
    解析： 暂无解析

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