无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

A lube oil filter can be used to remove most contaminants from lube oilA contaminant which will remain in the lube oil after filtering is （）.

A.acid
B.fuel oil
C.sediment
D.water

你可能感興趣的試題

單項(xiàng)選擇題

Which pump installation would require an external source of sealing water?（）

A.Main circulator pump jacket water cooling
B.Salt water service pump
C.Auxiliary condensate pump
D.Bilge pump

單項(xiàng)選擇題

The accumulation of air and other non-condensable gases in a refrigeration system will （）.

A.cause a loss of the liquid seal
B.create a vapor lock in the liquid receiver
C.collect in the condenser
D.cause foaming of the oil in the crankcase

<ruby id="zr07g"><output id="zr07g"></output></ruby><ruby id="zr07g"><small id="zr07g"></small></ruby>

<dl id="zr07g"></dl><dl id="zr07g"></dl>