A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame ______.A.stopperB.screenC.filterD.restrictor

题目

A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame ______.

A.stopper

B.screen

C.filter

D.restrictor

相似考题

1.If the head pressure of a reciprocating refrigeration compressor is excessiveA.the relief valve should open before the high pressure cutoutB.the relief valve should open and allow the excess refrigerant to flow to the receiverC.the high pressure cutout switch should operate before the relief valve opensD.you should close the discharging valve

2.The amount of LFG that may be loaded into a given tank is determined by ______．A.Checking the loading sheetB.Loading to within 1 percent of outageC.Loading to within 10 percent of the safety relief valve settingD.Filling to the maximum level indicated on the liquid level gaging device

3.What is a cofferdam ________．A.Tube fitted to an ullage holeB.Area the product is loaded intoC.Void or empty space separating two tanksD.Opening in the deck used for cleaning a tank

4.An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.A.stabilizing the ship speedB.increasing the fuel pump settingC.braking the crankshaftD.cutting power off the engine

参考答案和解析
正确答案：B
更多“A device fitted over the discharge opening on a relief valve consisting of one or two wove ”相关问题

  • 第1题：

    In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.

    A.invert the CO2 extinguisher

    B.squeeze the two trigger handles together

    C.remove the locking pin

    D.open the discharge valve


    正确答案：C
    为了施放便携式CO2灭火器，操作者必须首先拔除锁定销。

  • 第2题：

    单选题
    A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a（）.
    A

    flame stopper

    B

    flame screen

    C

    flame filter

    D

    flame restrictor


    正确答案： A
    解析： 暂无解析

  • 第3题：

    单选题
    The（） is fitted in pair one is the main valve, the other the auxiliary or standby.
    A

    main stem stop valve

    B

    auxiliary steam stop valve

    C

    feed check or control valve

    D

    blow down valve


    正确答案： B
    解析： 暂无解析

  • 第4题：

    多选题
    What are two advantages that the Cisco SA 520 all-in-one UTM security device has over implementing a typical router in a small business network？（）
    A

    Cisco Intrusion Prevention System

    B

    higher bandwidth

    C

    virtual private networks

    D

    access control lists

    E

    URL filtering


    正确答案： E,D
    解析： 暂无解析

  • 第5题：

    单选题
    The usual symptoms of cavitation in a centrifugal pump is （）.
    A

    noise and vibration

    B

    an increase in discharge pressure

    C

    an increase in suction pressure

    D

    lifting of the relief valve


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    If the head pressure is too high,（）
    A

    the relief valve should open before the high-pressure cutout

    B

    the relief valve should open and let excess refrigerant go to receiver

    C

    the high-pressure cutout switch should operate before the relief valve opens

    D

    close in on the suction valve


    正确答案： C
    解析： 暂无解析

  • 第7题：

    多选题
    In which two locations in an enterprise network can an IPS sensor be placed？（）
    A

    bridging VLANs on two switches

    B

    bridging two VLANs on one switch

    C

    between two Layer 2 devices with trunking

    D

    between two Layer 2 devices without trunking

    E

    between a Layer 2 device and a Layer 3 device with trunking


    正确答案： B,D
    解析： 暂无解析

  • 第8题：

    单选题
    One of the consequences in continuing to operate a centrifugal bilge pump with the discharge valve closed, is that the （）.
    A

    motor overload will open

    B

    relief valve will open

    C

    pump will overheat

    D

    motor will overheat


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    In a refrigeration system, which of the following statements describes the actions occurring when a solenoid valves, used in conjunction with an unloader head is energized?（）
    A

    The solenoid valves directs high pressure gas to the valve lifting device raising the suction valve off its seat and causing one specific cylinder to become unloaded

    B

    The solenoid valves directs high pressure gas to the underside of the unloading piston, causing it to rise and allowing the recirculating ports to be opened

    C

    When the solenoid valve becomes energized, the valve ports become closed, allowing discharge pressure to build up above the piston, shifting it and causing it to unload

    D

    The solenoid valve allows the refrigerant to pass from the suction chamber to the top of the unloader piston, causing the piston to lift and unload the cylinder


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    The major difference between the discharge and suction valves installed in most low pressure, reciprocating air compressors is that（）
    A

    one valve seats upwards, while the other seats downwards

    B

    the reed valves used on the discharge are made substantially thicker and heavier than the suction valves

    C

    the suction valve springs exert a greater tension than the discharge valve springs

    D

    the discharge valve springs exert a greater tension than the suction valve springs


    正确答案： A
    解析： 暂无解析

  • 第11题：

    单选题
    A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a flame（）.
    A

    stopper

    B

    screen

    C

    filter

    D

    restrictor


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    In order to discharge a C02 portable fire extinguisher , the operator must first（）.
    A

    invert the CO extinguisher

    B

    squeeze the two trigger handles together

    C

    remove the locking pin

    D

    open the discharge valve


    正确答案： B
    解析： 暂无解析

  • 第13题：

    What are two advantages that the Cisco SA 520 all-in-one UTM security device has over implementing a typical router in a small business network？（）

    • A、 Cisco Intrusion Prevention System
    • B、 higher bandwidth
    • C、 virtual private networks
    • D、 access control lists
    • E、 URL filtering

    正确答案:C,E

  • 第14题：

    单选题
    Which one of following statement is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?（）
    A

    the direct acting relief valve is used for controlling lower flows and pressure

    B

    the pilot operated relief valve is used for controlling higher flows and pressure

    C

    the pilot operated relief valve is used for controlling lower flows and pressure

    D

    the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve


    正确答案： C
    解析： 暂无解析

  • 第15题：

    单选题
    In a full flow type lube oil system, the bypass relief valve will lift due to （）
    A

    a clogged filter element

    B

    excessive lube oil pump discharge pressure

    C

    excessive lube oil flow

    D

    excessively hot lube oil


    正确答案： D
    解析： 暂无解析

  • 第16题：

    单选题
    If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
    A

    the relief valve should open before the high pressure cutout

    B

    the relief valve should open and allow the excess refrigerant to flow to the receiver

    C

    the high pressure cutout switch should operate before the relief valve opens

    D

    you should close in on the suction valve


    正确答案： B
    解析： 暂无解析

  • 第17题：

    单选题
    The amount of LFG that may be loaded into a given tank is determined by（）.
    A

    checking the loading sheet

    B

    loading to within 1 percent of outage

    C

    loading to within 10 percent of the safety relief valve setting

    D

    filling to the maximum level indicated on the liquid level gaging device


    正确答案： D
    解析： 暂无解析

  • 第18题：

    多选题
    In which two locations in an enterprise network can an IPS sensor be placed?（）
    A

    bridging VLANs on two switches

    B

    bridging two VLANs on one switch

    C

    between two Layer 2 devices withtrunking

    D

    between two Layer 2 devices withouttrunking

    E

    between a Layer 2 device and a Layer 3 device withtrunking


    正确答案： D,E
    解析： 暂无解析

  • 第19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20题：

    单选题
    To maintain the down stream pressure within defined limits over a range of flow and despite any changes in supply pressure, （） is fitted.
    A

    a check valve

    B

    a gate valve

    C

    a pressure reducing valve

    D

    a quick closing valve


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    What is the purpose of a relief valve?（）
    A

    to fill 2 tanks at the same time

    B

    to use pump at a higher pressure

    C

    to return liquid to suction side if discharge valve is closed

    D

    All of the above are true


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    In some type of two-stroke engines, besides some small holes for（）, starting valve, safety valve, indicator cock, and central opening in each cylinder cover for mounting the（）
    A

    fuel valves；exhaust valve

    B

    exhaust valves；inlet valve

    C

    fuel valves；inlet valve

    D

    exhaust valves；fuel valve


    正确答案： B
    解析： 暂无解析

  • 第23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

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