单选题The relief valve is located on the（）Adischarge side of condenserBdischarge side of compressorCoutlet of the evaporatorDreceiver tank
单选题
The relief valve is located on the（）
A
discharge side of condenser
B
discharge side of compressor
C
outlet of the evaporator
D
receiver tank
参考解析
解析：
暂无解析
相关考题：
The globe valve has a bulbous body, housing a valve seat and screw down plug or disc arranged at right angles to the axis of the pipeAccording to the above sentence, which of the following statements is not true?A.The profile of the valve is like a globeB.The valve seat is set into the bulbous bodyC.The plug or disc of the valve is made vertical to the axis of the pipeD.The valve seat is located at right side of the plug or disc
Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?A.Pressure-reducing valveB.Unloading valveC.Counterbalance valveD.Pressure-relief valve
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
What type of valve is used to direct the flow of hydraulic fluid?A.relief valveB.direction control valveC.stop valveD.pressure control valve
单选题Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?（）APressure-reducing valveBUnloading valveCCounterbalance valveDPressure-relief valve
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（）.Aflame stopperBflame screenCflame filterDflame restrictor
单选题Valve gear knocks are more easily located while the engine （）.Ais runningBstopsCis repairedDlacks of oil
单选题A substantial increase in crankcase pressure could be an indication of （）Aexcessive lube oil pressureBthe proper seating of new ringsCa worn cylinder linerDa malfunctioning cylinder relief valve
单选题Hydraulic control check value is generally used to （） in the marine hydraulic mechanism.Acontrol the back pressure of return oilBlock the oil lines under some conditionsCchange the direction of oil flowDact as relief valve
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?（）Athe direct acting relief valve is used for controlling lower flows and pressureBthe pilot operated relief valve is used for controlling higher flows and pressureCthe pilot operated relief valve is used for controlling lower flows and pressureDthe controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
单选题If the relief valve on a diesel engine cylinder lifts, the cause could be due to （）Aliquid in the cylinderBlow compression in the cylinderChigh exhaust temperatureDpoor fuel penetration
单选题The scale trap is located between the （）Aking valve and the expansion valveBsolenoid valve and expansion valveCevaporator and receiverDcompressor and evaporator
单选题In which of the scavenging methods listed will the exhaust valve be located in the cylinder head?（）AReturn-flowBUniflowCCross-flowDDirect flow
单选题A cargo hose is marked with the（）.Amaximum working pressureBbursting pressureCsafety relief valve settingDmaximum temperature
单选题If a single cylinder relief valve on a diesel engine lists frequently while the engine is running, the cause may be an （）Aexcessively late injection timing for each cylinderBincorrectly adjusted intake valve timingCincorrectly adjusted fuel injectorDincorrectly adjusted intake valve clearance
单选题Fire protection regulations for towing vessels require any fuel line subject to internal head pressure from fuel in the tank to（）.Abe fitted with a positive fuel shut-off valve located at the tankBhave a shut-off valve at the top of the tankChave a gate valve easily accessible in the space where the tank is locatedDhave a drain cock at the lowest point in the fuel line
单选题In a full flow type lube oil system, the bypass relief valve will lift due to （）Aa clogged filter elementBexcessive lube oil pump discharge pressureCexcessive lube oil flowDexcessively hot lube oil
单选题If the head pressure of a reciprocating refrigeration compressor is excessive, （）.Athe relief valve should open before the high pressure cutoutBthe relief valve should open and allow the excess refrigerant to flow to the receiverCthe high pressure cutout switch should operate before the relief valve opensDyou should close in on the suction valve
单选题The usual symptoms of cavitation in a centrifugal pump is （）.Anoise and vibrationBan increase in discharge pressureCan increase in suction pressureDlifting of the relief valve
单选题The bulb for the thermal expansion valve is located（）Ain the middle of evaporator coilsBnear the evaporator coil outletCnear the evaporator coil inletDon the bottom row of evaporator coils
单选题If the head pressure is too high,（）Athe relief valve should open before the high-pressure cutoutBthe relief valve should open and let excess refrigerant go to receiverCthe high-pressure cutout switch should operate before the relief valve opensDclose in on the suction valve
单选题Which of the following problems will occur if the internal drain at either end of a hydraulic, two-way, spool-type directional control valve cylinder were to become plugged?（）AThe reservoir would become vapor boundBThe valve would be placed in hydraulic lockCThe spring loaded relief ports would openDThe buffering chambers would be unable to function
单选题After fuel tanks have been topped off, which of the listed procedures should be followed next?（）AThe pressure-vacuum relief valve should be resetBThe tanks should be made seaworthy to prevent contaminationCThe tanks should be sounded to make sure the levels are not risingDThe tanks should be marked with a bull stamp on the manifold filling valve
单选题A relief valve for a cargo pump is generally installed（）.Aafter the discharge valveBbetween the pump and discharge valveCafter the suction valveDbetween the pump and suction valve
单选题Some pumps use packing as sealing glandThe gland should be （）.Aslack enough to allow slight leakage of fluidBslightly clockedCbrought up tight so as not to allow any leakageDfitted with a relief valve
单选题What is the purpose of a relief valve?（）Ato fill 2 tanks at the same timeBto use pump at a higher pressureCto return liquid to suction side if discharge valve is closedDAll of the above are true
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（）.AstopperBscreenCfilterDrestrictor