Battery-powered sump pumps are more expensive than standard pumps, but can save the day if all power is out during a storm.JOHN MUTRUX
题目 Lube oil pumps taking suction from the sump of most small marine engines are usually (). A.of the diaphragm typeB.of the centrifugal typeC.of the positive displacement typeD.independently driven by electric motor 相关知识点: 试题来源: 解析 C 反馈 收藏 ...
OIL LEVEL INSPECTION Place motorcycle on its center stand on a firm surface. Warm up engine for a few minutes & switch off before checking oil level. The level is correct if the oil level is in the middle of the oil level window. MAX MIN Top up only with ...
The bedplate must be flexible enough to hog and sag with the foundation plate __ ___it is attached and which forms part of the ship’s structure. A. in which B. on which C. to which D. by which 未标记18/100 The pumps press oil into the crosshead bearing gap when the load on ...
Outages are bad news for AC-powered sump pumpsJames Cummings