A.觀察輔助輪是否著地 B.靜止時(shí)用腳踩走行輪看是否變形 C.聽是否有漏氣聲 D.憑直覺判斷
A.635~785kpa B.650~785kpa C.650~800kpa D.650~900kpa
A.1.5s-3.0s B.2.5s-3.0s C.1.0s-2.5s D.1.0s-2.0s
A.AC380V B.AC220V C.DC110V D.DC24V
A.小于等于12‰ B.小于等于13‰ C.小于等于14‰ D.小于等于16‰
A.行調(diào)及隊(duì)長報(bào)告 B.正線值班員 C.不亂拆亂動(dòng) D.視而不見