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Which maintenance functions can a GMDSS Radio Operator perform ________．A.The Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percentB.The Operator is responsible for ensuring tha

题目

Which maintenance functions can a GMDSS Radio Operator perform ________．

A.The Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percent

B.The Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstacles

C.All levels of maintenance must be performed by a licensed GMDSS Radio Maintainer

D.The Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraints

相似考题

1.Which of the following can an operator use to shutdown a system into single－user mode?()A.shutdown -dB.shutdown -sC.shutdown -mD.shutdown -Fr -s 1

2.Which of the following statements is TRUE regarding crane operations ________．A.Radio communications allow the crane operator to disregard the use of hand signalsB.The crane operators and signalman must be familiar with the correct hand signalsC.The forward cranes can be operated from the bridgeD.The aft cranes can be operated from the aft steering station

3.If a GMDSS radio operator initiates a DSC distress transmission but does not insert a message，what happens ________．A.The transmission is aborted and an alarm sounds to indicate this data must be provided by the operatorB.The transmission is not initiated and“ERROR”is indicated on the display readoutC.The transmission will be made with“default”information provided automaticallyD.The receiving station will poll the DSC unit of the vessel in distress to download the necessary information

4.What is the minimum requirement of a GMDSS operator?A.GMDSS operator licenseB.Third officer licenseC.General Radiotelephone Operator license and Radar EndorsementD.General Radiotelephone license or First or Second Class Radiotelegraph license with GMDSS Radio Officer’s endorsement

更多“Which maintenance functions can a GMDSS Radio Operator perform ________.A.The Operator can ”相关问题

  • 第1题：

    When the GMDSS Radio Operator on watch hears“SECURITE”spoken three times he can expect to receive a message concerning ______．

    A.The safety of navigation or important meteorological warnings

    B.The safety of a vessel or a person is in jeopardy

    C.A vessel in need of immediate assistance

    D.A coast station traffic list


    正确答案：A

  • 第2题：

    Which statement concerning GMDSS Radio Operator requirements is FALSE ________．

    A.Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea

    B.Each compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well

    C.Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications

    D.While at sea，adjustments to，and the maintaining of，GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer


    正确答案：C

  • 第3题：

    Which three statements about subqueries are true?（）

    • A、A single row subquery can retrieve only one column and one row.
    • B、A single row subquery can retrieve only one row but many columns.
    • C、A multiple row subquery can retrieve multiple rows and multiple columns.
    • D、A multiple row subquery can be compared by using the “>” operator.
    • E、A single row subquery can use the IN operator.
    • F、A multiple row subquery can use the “=” operator.

    正确答案:B,C,E

  • 第4题：

    Which of the following can an operator use to shutdown a system into single-user mode?（）

    • A、shutdown -d
    • B、shutdown -s
    • C、shutdown -m
    • D、shutdown -Fr -s 1

    正确答案:C

  • 第5题：

    Which of the following commands can an operator use to view disk performance details?（）

    • A、topas -D
    • B、topas -R
    • C、topas -C
    • D、topas -d

    正确答案:A

  • 第6题：

    Which statement is true regarding subqueries?（）

    • A、The LIKE operator cannot be used with single-row subqueries 
    • B、The NOT IN operator is equivalent to IS NULL with single-row subqueries 
    • C、=ANY and =ALL operators have the same functionality in multiple-row subqueries 
    • D、The NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries 

    正确答案:D

  • 第7题：

    单选题
    Which of the following statements is TRUE regarding crane operations（）.
    A

    Radio communications allow the crane operator to disregard the use of hand signals

    B

    The crane operators and signalman must be familiar with the correct hand signals

    C

    The forward cranes can be operated from the bridge

    D

    The aft cranes can be operated from the aft steering station


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    Which operator can be used with a multiple-row subquery?（）
    A

    =

    B

    LIKE

    C

    BETWEEN

    D

    NOT IN

    E

    IS

    F

    <>


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    Which message categories cannot be disabled by the GMDSS radio operator（）.
    A

    Navigational Warnings

    B

    Meteorological Warnings

    C

    Search and Rescue Information

    D

    All of the above


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    The operator of the ship’s radiotelephone，if the radiotelephone is carried voluntarily，must hold at least a（）.
    A

    Mate's license

    B

    Restricted radiotelephone operator permit

    C

    Second-class radio operator's license

    D

    Seaman's document


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Which statement is generally correct regarding the maintenance requirements for ships under GMDSS（）.
    A

    Redundancy of functions of certain equipment will partially meet this requirement

    B

    On-board maintenance provided by a person holding a GMDSS maintainer's license will partially meet the requirements

    C

    Shoreside maintenance and scheduled tests and inspections will partially meet this requirement

    D

    All of the above


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    Which maintenance functions can a GMDSS Radio Operator perform（）.
    A

    The Operator can make fine internal adjustments to the transmitter as long as the output power does not change by more than one percent

    B

    The Operator is responsible for ensuring that INMARSAT antennas are free of built-up soot and clear of obstacles

    C

    All levels of maintenance must be performed by a licensed GMDSS Radio Maintainer

    D

    The Operator may install an EPROM in order to ensure that the equipment continues to operate within legal constraints


    正确答案： B
    解析： 暂无解析

  • 第13题：

    Which message categories cannot be disabled by the GMDSS radio operator ________．

    A.Navigational Warnings

    B.Meteorological Warnings

    C.Search and Rescue Information

    D.All of the above


    正确答案：D

  • 第14题：

    Which statement is generally correct regarding the maintenance requirements for ships under GMDSS ________．

    A.Redundancy of functions of certain equipment will partially meet this requirement

    B.On-board maintenance provided by a person holding a GMDSS maintainer's license will partially meet the requirements

    C.Shoreside maintenance and scheduled tests and inspections will partially meet this requirement

    D.All of the above


    正确答案：D

  • 第15题：

    Which two functions can be provided by an Integrated Services Router （ISR） in a VoIP network？（）

    • A、 ISR can perform the functions of a multipoint control unit to facilitate voice conferencing.
    • B、 ISR can perform the function of a call agent in the event of loss of communication with a CallManager.
    • C、 ISR can provide XML applications to the phones.
    • D、 ISR can provide all of the functionality of a CallManager in the event of loss ofcommunication to the CallManager.
    • E、 ISR can act as a voice gateway to the PSTN.

    正确答案:B,E

  • 第16题：

    An operator wants to move all files inside the directory /home/operator to the current directory. Which of the following commands will complete the task?（）

    • A、mv /home/operator .
    • B、mv /home/operator/* .
    • C、mv /home/operator ../..
    • D、mv /home/operator/all ../home/operator

    正确答案:B

  • 第17题：

    Which two statements are true regarding subqueries? （）

    • A、A subquery can retrieve zero or more rows 
    • B、Only two subqueries can be placed atone level 
    • C、A subquery can be used only in SQL query statements 
    • D、A subquery can appear on either side of a comparison operator 
    • E、There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement 

    正确答案:A,D

  • 第18题：

    单选题
    What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received? （）
    A

    No action is necessary，as the DSC control unit will automatically switch to the NBDP follow-on communications frequency

    B

    The operator should immediately set continuous watch on the radiotelephone frequency that is associated with the frequency band on which the distress alert was received

    C

    The Operator should immediately set continuous watch on VHF channel 70

    D

    The Operator should immediately set continuous watch on the NBDP frequency that is associated with the frequency band on which the distress alert was received


    正确答案： C
    解析： 暂无解析

  • 第19题：

    单选题
    An operator must check the status of print queues on a regular basis. Which of the following commands can be used to check on all the print queues?（）
    A

    lslp -a

    B

    qchk -A

    C

    enq -s ALL

    D

    lpstat -p ALL


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    Which statement is true regarding subqueries?（）
    A

    The LIKE operator cannot be used with single-row subqueries 

    B

    The NOT IN operator is equivalent to IS NULL with single-row subqueries 

    C

    =ANY and =ALL operators have the same functionality in multiple-row subqueries 

    D

    The NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries 


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    Which statement concerning GMDSS Radio Operator requirements is FALSE（）.
    A

    Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea

    B

    Each compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well

    C

    Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications

    D

    While at sea，adjustments to，and the maintaining of，GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer


    正确答案： B
    解析： 暂无解析

  • 第22题：

    多选题
    Which three statements about subqueries are true?（）
    A

    A single row subquery can retrieve only one column and one row.

    B

    A single row subquery can retrieve only one row but many columns.

    C

    A multiple row subquery can retrieve multiple rows and multiple columns.

    D

    A multiple row subquery can be compared by using the > operator.

    E

    A single row subquery can use the IN operator.

    F

    A multiple row subquery can use the = operator.


    正确答案： E,F
    解析： 暂无解析

  • 第23题：

    单选题
    When the GMDSS Radio Operator on watch hears“SECURITE”spoken three times he can expect to receive a message concerning（）.
    A

    The safety of navigation or important meteorological warnings

    B

    The safety of a vessel or a person is in jeopardy

    C

    A vessel in need of immediate assistance

    D

    A coast station traffic list


    正确答案： B
    解析： 暂无解析

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