【单选题】
当钻井液粘度高的时候应该选用目数（ ），并且孔（ ）的振动筛筛布。___
A. 高 大
B. 低 大
C. 高 小
D. 低 小
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答案
B
解析
暂无解析
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气动绞车主要由（ ）组成。___
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B. 气缸. 连杆.配气阀.操纵手柄及进气口等
C. 转动轴.曲轴.离合器.大小齿轮
D. 卷筒及其制动装置
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气动绞车刹带及刹车鼓之间要保持清洁干燥，防止油.污水进入，刹车效果不好可通过调节（ ）进行，严禁往刹带内塞面纱等物。___
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B. 活塞销
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以下关于气动绞车使用，不正确的是：（ ）。___
A. 在刹死刹车后，人可以在吊重物期间离开
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关于吊带下列描述不正确的是（ ）。___
A. 使用时应避免软环张开角度超过30°
B. 吊带应在避光和无紫外线辐射的条件下存放
C. 不应把吊装带存放在明火旁或其他热源附近
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【单选题】
如果钻井绞车刹车过热，则下面做法不正确的是（ ）。___
A. 提高进水排量到推荐值
B. 增加水箱的冷却水或增大水箱容积
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D. 当转子旋转时，减缓冷却水流畅速度
【单选题】
油雾器是一种特殊的注油装置。当压缩空气流过时，它将润滑油喷射成（ ）， 随压缩空气一起流入需要润滑的部件，达到润滑的目的。___
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D. scsi#.returnNoConnectDuringAPD = “TRUE”
