Which of the problems listed represents the major difficulty encountered with thermal expansion valve operation?（）<br>A:Lube oil passing through the system<br>B:Moisture or foreign matter collecting at the valve seat and orifice<br>C:Variable spring tension caused by the changing temperature<br>D:Frost on the liquid line

Which of the problems listed represents the major difficulty encountered with thermal expansion valve operation?（）
A:Lube oil passing through the system
B:Moisture or foreign matter collecting at the valve seat and orifice
C:Variable spring tension caused by the changing temperature
D:Frost on the liquid line

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10245629】个 (题库试题定时更新)