Cargo pump relief valves are piped to the ______．A.cargo pump pressure gaugesB.crossover lines interconnecting two pumpsC.suction side of pumpsD.atmosphere through pump vents

题目

Cargo pump relief valves are piped to the ______．

A.cargo pump pressure gauges

B.crossover lines interconnecting two pumps

C.suction side of pumps

D.atmosphere through pump vents

相似考题

1.Which of the following will be the advantage of a centrifugal pump as compared with a reciprocating pump? l.Its discharge is continuous; ll.It has no internal valves: lll.Upon accidental closing of discharge valve, excessive pressure will not build up()A.l, llB.ll, lllC.l ,ll.IIID.llonly

2.A fire pump may be used for other purposes if ______.A.the other services are run off a reducing station with a pressure gageB.one of the required pumps is kept available for use on the fire main system at all timesC.no relief valves are installedD.all of the above conditions are met

3.How should cargo tank hatches be protected when the ullage opening is open and the tank NOT gas free?A.With gooseneck ventsB.With warning signsC.With flame screensD.With pressure-vacuum relief valves

4.After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?A.The relief valves in the system should be readjustedB.The filters and strainers should be checked frequentlyC.All system pressure should be readjustedD.The system should be drained and renewed with a fluid of different operating characteristics

更多“Cargo pump relief valves are piped to the ______.A.cargo pump pressure gaugesB.crossover l ”相关问题

  • 第1题：

    What is the purpose of pressure-vacuum relief valves ________．

    A.Regulation of discharge pressure from cargo pumps

    B.Maintaining constant velocity in cargo lines

    C.Regulation of suction head on cargo pumps

    D.To maintain a tank or void at atmospheric pressure


    正确答案：D

  • 第2题：

    Which statement is TRUE concerning cargo hose on tank barges ________．

    A.Cargo hose must be able to withstand the shut-off head plus the static head of the cargo pump

    B.Cargo hose must be able to withstand the static head of the cargo pump but no less than 100 psi

    C.Cargo hose must be able to withstand the shut-off head less the static head of the cargo pump but no less than 100 psi

    D.Cargo hose must be able to withstand at least 150 psi


    正确答案：D

  • 第3题：

    You start a centrifugal cargo pump to discharge cargo．The pump works for a while and then loses suction．This could be caused by ______．

    A.The pump running backwards

    B.Incomplete priming

    C.The discharge head being too high

    D.All of the above


    正确答案：B

  • 第4题：

    单选题
    When the helm demands a 20°right rudder movement from an electro-hydraulic steering gear, which of the listed actions will be the FIRST action to happen when this rudder position is attained?（）
    A

    The six-way valve opens

    B

    The steering service pump motor is stopped

    C

    The follow-up gear takes the pump off stroke

    D

    The cylinder relief valves bypass oil to the suction side the pump


    正确答案： D
    解析： 暂无解析

  • 第5题：

    单选题
    Air trapped in the hydraulic fluid of a steering system should be indicated by （）.
    A

    the pump over-speeding

    B

    an improper rudder response

    C

    bubbles in the sight glass

    D

    ram relief valves lifting


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    Cargo pump relief valves are piped to the（）.
    A

    cargo pump pressure gauges

    B

    crossover lines interconnecting two pumps

    C

    suction side of pumps

    D

    atmosphere through pump vents


    正确答案： D
    解析： 暂无解析

  • 第7题：

    单选题
    When loading bulk liquid cargo，what is the FIRST action you should take if a cargo valve jammed open?（）
    A

    Trip the pump relief valve

    B

    Order the dock man to shut down

    C

    Call the owner，operator，or terminal supervisor

    D

    Run out the vessel's or terminal's fire hose


    正确答案： B
    解析： 暂无解析

  • 第8题：

    单选题
    Which of the following will be the advantage of a centrifugal pump as compared with a reciprocating pump?（） (1) Its discharge is continuous (2) It has no internal valves (3) Upon accidental closing of discharge valve, excessive pressure will not build up
    A

    （1），（2）

    B

    （2），（3）

    C

    （1），（2），（3）

    D

    （2）only


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    A fire pump may be used for other purposes if（）.
    A

    the other services are run off a reducing station with a pressure gage

    B

    one of the required pumps is kept available for use on the fire main system at all times

    C

    no relief valves are installed

    D

    all of the above conditions are met


    正确答案： C
    解析： 暂无解析

  • 第10题：

    单选题
    Low compression pressure in a diesel engine may be the result of （）
    A

    insufficient fuel supply due to fuel pump valves sticking or leaking

    B

    excessive mechanical clearance between the piston crown and cylinder head

    C

    excessively worn fuel pump plunger

    D

    excessive exhaust back pressure


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    According to regulations，a cargo hose used for transferring liquefied gases must have a bursting pressure of（）.
    A

    5 times the maximum working pressure on the hose during cargo transfer

    B

    one half the designed working pressure

    C

    4 times the pressure of the cargo pump used for transferring

    D

    5 times the minimum working pressure on the hose during cargo transfer


    正确答案： A
    解析： 暂无解析

  • 第12题：

    单选题
    If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
    A

    a low load on the unit

    B

    a clogged pump suction strainer

    C

    a blockage in the line between the pump and hydraulic motor

    D

    the hydraulic motor turning too fast


    正确答案： C
    解析： 暂无解析

  • 第13题：

    What is the purpose of the relief valve of a cargo pump ________．

    A.Provides for the removal of vapors

    B.Allows two or more tanks to be filled at the same time

    C.Provides for the emergency shutdown of the pump

    D.Permits the return of cargo to the suction side of the pump


    正确答案：D

  • 第14题：

    All of the following steps are taken in starting a centrifugal pump，EXCEPT to ______．

    A.Set the relief valve

    B.Check the lubrication system

    C.Vent the pump casing

    D.Open the pump suction and discharge valves


    正确答案：A

  • 第15题：

    单选题
    When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear,the（）.
    A

    ram relief valves bypass oil to stop rudder movement

    B

    six-way valve shifts to the neutral flow position

    C

    steering pump electric motor is de - energized by the transfer switch

    D

    follow-up gear takes the hydraulic pump off stroke


    正确答案： D
    解析： 暂无解析

  • 第16题：

    单选题
    （） at the end of the distribution pipe ensures that adequate pressure is maintained by the pump.
    A

    A relief valve

    B

    An alarm

    C

    A pressure gauge

    D

    A non-maim valve


    正确答案： C
    解析： 暂无解析

  • 第17题：

    单选题
    What is the purpose of pressure-vacuum relief valves? （）
    A

    Regulation of discharge pressure from cargo pumps

    B

    Maintaining constant velocity in cargo lines

    C

    Regulation of suction head on cargo pumps

    D

    To maintain a tank or void at atmospheric pressure


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?（）
    A

    The relief valves in the system should be readjusted

    B

    The filters and strainers should be checked frequently

    C

    All system pressure should be readjusted

    D

    The system should be drained and renewed with a fluid of different operating characteristics


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Blow-off of the relief valves of the main cylinders during operation indicates （）.
    A

    the cylinder cover is cracked

    B

    the injector holes is clogged

    C

    the cams are not properly set

    D

    fuel pump is leaking


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    All of the following steps are taken in starting a centrifugal pump，EXCEPT to（）.
    A

    set the relief valve

    B

    check the lubrication system

    C

    vent the pump casing

    D

    open the pump suction and discharge valves


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    A relief valve for a cargo pump is generally installed（）.
    A

    after the discharge valve

    B

    between the pump and discharge valve

    C

    after the suction valve

    D

    between the pump and suction valve


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    The lifting pressure of （） is set in the presence of a Surveyor it is locked and cannot be changed.
    A

    fuel valves of main engine

    B

    injector pump of main engine

    C

    safety valves of marine boiler

    D

    safety valves of a reciprocating pump


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    Each fire pump on a ship must have a pressure gauge located at（）.
    A

    the pump discharge

    B

    the manifold connection

    C

    each fire station discharge

    D

    the pump station


    正确答案： B
    解析： 暂无解析

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