对重力运搬叙述不正确的是 -题库考试答案搜索网

对重力运搬叙述不正确的是

单选题

2021-07-18 18:52

A、应用空场法采矿时, 矿体倾角大于 50°~55°, 方能考虑应用重力运搬;
B、应用崩落采矿法时,矿石能沿 65°~80°倾斜面借重力向下滚动;
C、采场矿石重力运搬时受矿体倾角影响很大,因此水平矿体不能采用重力运搬方式;
D、溜井中重力运搬,其倾角一般不小于 55°~60°。

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正确答案

C

试题解析

C

标签：地质学专升本结晶学及矿物学 2020年第二学期期末考试期末考试资源勘查工程 2019级毕业清考（考试分）

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