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膨胀阀（Expansion Valve）的功用是降低液态冷媒之压力及依车室内热负荷大小控制进入蒸发器内之冷媒流量.
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更多 “膨胀阀（Expansion Valve）的功用是降低液态冷媒之压力及依车室内热负荷大小控制进入蒸发器内之冷媒流量.” 相关考题
考题
A thermostatic expansion valve is properly controlling evaporator superheat. Adjusting this valve to lower the superheat will result in a/anA.evaporator pressure decreaseB.evaporator coil over-feedC.evaporator capacity increaseD.expansion valve diaphragm rupture
考题
单选题If a refrigeration system compressor crankcase is sweating, you should （）.A
add refrigerant to the systemB
adjust the thermal expansion valve to the proper settingC
adjust the float valve to the proper holding pressureD
open the hand expansion valve
考题
单选题A ruptured diaphragm in a thermostatic expansion valve will cause the valve to （）.A
openB
closeC
remain in its positionD
flood the evaporator with refrigerant
考题
单选题The scale trap is located between the （）A
king valve and the expansion valveB
solenoid valve and expansion valveC
evaporator and receiverD
compressor and evaporator
考题
单选题下列叙述何者为误（）A
蒸发器内冷媒状态为由低压、低温液态变成低压、低温气态B
压缩机由引擎V型皮带驱动C
冷凝器把高温高压气态冷媒变成中温高压液态冷媒D
膨胀阀把液态冷媒变成气态冷媒
考题
单选题A solenoid valve used in a refrigeration system should be installed （）.A
with the axis of the solenoid horizontal, sensing temperature of the box, and upstream of the thermal expansion valveB
upright, sensing temperature of the box, and upstream of the thermal expansion valveC
upright, sensing temperature of the box, and downstream of the thermal expansion valveD
upright, sensing heat of the tail coil, and upstream of the thermal expansion valve
考题
单选题A cracked diaphragm in a thermostatic expansion valve will cause the valve to （）.A
return to a neutral positionB
flood the evaporatorC
openD
close
考题
单选题When the refrigeration demand is small,（）A
the expansion valve will move toward the wide open positionB
the expansion valve will move toward the closing positionC
the feeler bulb will conveys the high temperatureD
the superheat degree will raise
考题
单选题To correct the condition of slugging and flooding back in a refrigeration system, it may be necessary to （）.A
re-adjust the discharge pressureB
clean the expansion valve screenC
add refrigerantD
adjust the expansion valve
考题
单选题The low pressure side of a refrigeration system is considered to exist from the （）.A
expansion valve to the compressorB
receiver to the expansion coilC
expansion valve to the evaporatorD
condenser to the expansion valve
考题
单选题在凝结器与膨胀阀间的冷媒是属于（）的状况。A
高压液态B
高压液气态C
低压液态D
低压气态
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