单选题What separate the high pressure side from the low pressure side in a refrigeration system?()ACondenser and thermal expansion valveBKing and solenoid valvesCCompressor and thermal expansion valveDCondenser and solenoid valve
单选题
What separate the high pressure side from the low pressure side in a refrigeration system?()
A
Condenser and thermal expansion valve
B
King and solenoid valves
C
Compressor and thermal expansion valve
D
Condenser and solenoid valve
参考解析
解析:
暂无解析
相关考题:
In the following statements about the principle of the low level controlling, which is WRONG? 0 A.Low level is monitored on the drain tank and header tank.B.If there is high differential the filters pressure across the circulatingpumps is alarmedC.The lubricating oil purifier cannot take oil from the drain tankD.If the sea water pressure falls, this also operates an alarm
A smoking exhaust from an operating diesel engine could be caused by( ).A.low sulfur content in the fuelB.a loose injector inlet connectionC.late fuel injectionD.high injection pressure
________ causes strong winds and rough sea at northwest Bay of Biscay.A.Strong low pressureB.Strong high pressureC.Steep pressure gradientD.Steep gradient pressure
What alarm is NOT found on an inert gas system ________.A.Low oxygen alarmB.Low pressure alarmC.Scrubber high water level alarmD.Deck seal low water alarm
What kind of pressure systems travel in easterly waves ________.A.High pressureB.Low pressureC.Subsurface pressureD.Terrastatic pressure
A barometer showing falling pressure indicates the approach of a ______.A.high pressure systemB.low pressure systemC.high dew pointD.low dew point
单选题Late fuel injection timing is indicated by ()Alower than normal cylinder pressure and low exhaust temperatureBlower than normal cylinder pressure and high exhaust temperatureChigher than normal cylinder pressure and low exhaust temperatureDhigher than normal cylinder pressure and high exhaust temperature
单选题In a compression refrigeration plant the refrigerant is under low pressure in the () and under high pressure in the ().Acompressor;condenserBcondenser;evaporatorCthrottle valve;evaporatorDevaporator;condenser
单选题Two well-developed high pressure areas may be separated by a().AHill of low pressureBTrough of low pressureCValley of low pressureDRidge of low pressure
单选题()causing strong winds and rough sea north west Bay of Biscay.AStrong low pressureBStrong high pressureCSteep pressure gradientDSteep gradient pressure
单选题Sidewise force of the propeller tends to throw a vessel’s stern to the right or left,depending on rotation. This force is caused by().Aback current from the rudderBgreater pressure on the right or left side of the propeller,depending on rotationClower pressure on the right or left side of the propeller,depending on rotationDtorque from the velocity and angle at which the surrounding water impinges upon the propeller blades
单选题The loss of the diesel engine cylinder air charge through leaky valves, piston rings, worn or scored liners, would be indicated by which of the following sets of conditions?()ALow compression pressure and high exhaust temperatureBLow firing pressure and high exhaust temperatureCLow compression pressure and low exhaust temperatureDLow firing pressure and low exhaust temperature
单选题Leaky exhaust valve will result in which of the following?() (1) high exhaust temperature; (2) low compression pressure; (3) low firing pressure.A(1) and (2)B(1) onlyC(2) onlyD(1),(2) and (3)
单选题What separate the high pressure side from the low pressure side in a refrigeration system?()ACondenser and thermal expansion valveBKing and solenoid valvesCCompressor and thermal expansion valveDCondenser and solenoid valve
单选题The direction of the surface wind is().Adirectly from high pressure toward low pressureBdirectly from low pressure toward high pressureCfrom high pressure toward low pressure deflected by the earth's rotationDfrom low pressure toward high pressure deflected by the earth's rotation
单选题High pressure and low pressure alarms must be tested().Ano earlier than 24 hours prior to loadingBno later than 24 hours prior to loadingCanytime prior to loadingDweekly
单选题What will a veering wind do().AChange direction in a clockwise manner in the Northern HemisphereBCirculate about a low pressure center in a counterclockwise manner in the Northern HemisphereCVary in strength constantly and unpredictablyDCirculate about a high pressure center in a clockwise manner in the Southern Hemisphere
单选题On the pole side of the high pressure belt in each hemisphere,the pressure diminishes. The winds along these gradients are diverted by the Earth’s rotation toward the east and are known as the().Ageostrophic windsBdoldrumsChorse latitudesDprevailing westerlies
单选题The purpose of the refrigeration system low pressure cutout switch is to ()Aprotect the compressor from liquid flood backBprotect the compressor from low discharge pressureCstart and stop the compressor upon system demandDstart the compressor after a drop in the evaporator pressure
单选题An axial piston, variable stroke pump is used in a vessels hydraulic steering gearUnder pressure, oil continually leaks out from between the valve plate/cylinder barrel and will().Acause loss of hydraulic oil from the systemBresult in extreme damage to the pumpCcause damage to the pump ff not continually drained from the pump casingDresult in the system high side pressure to substantially drop off
单选题If a compressor runs continuously, the cause might be a()Adefective thermal bulbBclogged scale trapCstuck high-pressure switchDstuck low-pressure switch
单选题High cylinder firing pressure, accompanied by low exhaust temperature, can result from ()Aimproper fuel rack positingBlengthy exhaust valve durationCextend operation at light loadDexcessively early injection timing
单选题The low pressure side of a refrigeration system is considered to exist from the ().Aexpansion valve to the compressorBreceiver to the expansion coilCexpansion valve to the evaporatorDcondenser to the expansion valve
单选题An indication of a diesel engine air intake being partially clogged, is ().Alow firing pressure and low exhaust temperaturesBlow firing pressure and normal exhaust temperaturesChigh firing pressure and low exhaust temperaturesDhigh firing pressure and high exhaust temperatures
单选题What kind of conditions would you observe as the eye of a storm passes over your ship’s position().AHuge waves approaching from all directions,clearing skies,light winds,and an extremely low barometerBFlat calm seas,heavy rain,light winds,and an extremely low barometerCFlat calm seas,heavy rain,light winds,and high pressureDHuge waves approaching from all directions,clearing skies,light winds,and high pressure
单选题What alarm is NOT found on an inert gas system? ()ALow oxygen alarmBLow pressure alarmCScrubber high water level alarmDDeck seal low water alarm
单选题Which of the listed components is considered to separate the high pressure side of a refrigeration cycle from the low pressure side of the cycle?()AThe condenser and the expansion valveBThe king valve and the solenoid valveCThe compressor and the expansion valveDThe condenser and the solenoid valve
单选题On the pole side of the trade wind belt,there is an area of high pressure with weak pressure gradients and light,variable winds. This area is called the().Aprevailing westerliesBgeostrophic windsCdoldrumsDhorse latitudes