Moisture absorbed in the winding or condensed on the surface of electrical machinery nsulation A.is good for long term preserving since most insulation is organic and contains some amountB.lowers the insulation value and is a common cause of fault grounds in idle machinesC.will enhance insulation resistance only if it is no saltD.reduces the amount of current supplied or drawn by the machine so horsepower is limited

Moisture absorbed in the winding or condensed on the surface of electrical machinery nsulation

A.is good for long term preserving since most insulation is organic and contains some amount

B.lowers the insulation value and is a common cause of fault grounds in idle machines

C.will enhance insulation resistance only if it is no salt

D.reduces the amount of current supplied or drawn by the machine so horsepower is limited


相关考题:

“machinery”表示机构。() 此题为判断题(对,错)。

[A] intensive [B] absorbed [C] intense [D] concentrated

[A] climbing [B] crawling [C] winding [D] sliding

Vessels carrying ______ must not willfully wash decks or holds.A.General cargoB.Steel productsC.Harmful cargoD.Machinery

Application of the transformational rules yields__________ structure.A.lexiconB.deepC.mexicalD.surface

Surface可以表示参数方程曲面

Surface可以表示旋转曲面

25、Surface可以表示旋转曲面

是Surface的抽象接口,操纵surface的控制器。

【单选题】以下哪个是设置布线安全间距的规则A.Routing→WidthB.Routing→Width LayersC.Electrical→ShortCircuitD.Electrical→Clearance