2025年事业单位工勤技能-黑龙江-黑龙江铸造工一级（高级技师）历年参考题典型考点含答案解析.docxVIP

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2025年事业单位工勤技能-黑龙江-黑龙江铸造工一级（高级技师）历年参考题典型考点含答案解析.docx

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2025年事业单位工勤技能-黑龙江-黑龙江铸造工一级（高级技师）历年参考题典型考点含答案解析

一、选择题

从给出的选项中选择正确答案（共50题）

1、在铸造生产中，下列哪种材料最常用于制造砂型铸造的型砂？

A．石英砂B．陶粒砂C．锆砂D．铬铁矿砂

【参考答案】A

【解析】石英砂因资源丰富、成本低、耐火度较高，是砂型铸造中最常用的型砂材料。其主要成tool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_call/tool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_call/tool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltool_calltoo