After passing through the expansion valve the refrigerant should be in the state of ().
- Avapor
- Bliquid
- Csolid
- DNone of the above is tree
After passing through the expansion valve the refrigerant should be in the state of ().
1、After finished the engine, which of va
After finished the engine, which of valves cannot be shut off by the duty engineer?()Afuel valveBthe starting air valveCthe sea chestDthe main sea pump inlet valve
2、If the thermal bulb of an expansion va
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will ().Aincrease the cap...
3、After a cold front passes,the barometr
After a cold front passes,the barometric pressure().Adrops,and the temperature dropsBdrops,and the temperature risesCrises,and the temperature dropsDrises,and the temperature rise
4、As the refrigerant passes through the
As the refrigerant passes through the valve orifice, its pressure is reduced and part of the refrigerant turns into ().AliquidBoily mixtureCemulsionDvapor
5、After a cold front passes,the barometr
After a cold front passes,the barometric pressure().ADrops,and the temperature dropsBDrops,and the temperature risesCRises,and the temperature dropsDRises,and the temperature rise
6、Where a propeller shaft passes through
Where a propeller shaft passes through the hull,water is prevented from entering by means of a().Astuffing boxBpropeller bossCseacockDstop-water