《井下钻探工》三级、四级试题及答案

《井下钻探工》三级、四级试题及答案
《井下钻探工》三级、四级试题及答案

煤炭特有工种职业技能鉴定

<<井下钻探工>>中级工理论考试试卷

2.答卷必须用蓝色或黑色钢笔、圆珠笔,不许用铅笔或红笔 。 3.本份试卷共 4 道大题,满分 100 分,考试时间 120 分钟。

一、填空题(每空1分,共20分)

1、煤矿的“三大”规程是:《煤矿安全规程》 、《操作规程》、《作业规程》 。

3、装运钻机前要进行检查,钻机各部件要齐全,电机必须防爆,电压应与电源相符,电缆无漏电现象,钻杆、钻具等应无损坏现象。

4、钻机进入安装地点前,应先检查巷道支护及通风等情况,发现问题及时处理。整修、加固钻场时,应清理干净脏杂物,挖好清水池,疏通好水沟。

6、安钻机地点应无浮煤,底板平整。地梁木平稳卧入底板,四角打上立柱及斜柱并迎山有力。采用丝杠的上端要将丝杠固定在巷顶或钻场牢固位置,防止施工时晃动倒下砸人。

7、钻孔透采空区发现有害气体喷出时,要 停钻加强通风 并用黄泥封孔。

8、钻孔施工人员必须认真填写好当班的施工记录,记录内容包括孔号、孔深、倾角 、钻杆数量及钻孔施工情况等。

9、钻机搬迁时应将所有外露管口用 死堵 、接头盖 或棉纱堵好,防止 灰尘 进入或液油外漏。

10施工钻孔时要准确测量钻进距离,一般每钻进10米或换钻具时必须量一次钻杆,以核实孔深。

11、封孔前必须清除孔内煤、岩粉,封孔的方法一般采用机械式封孔器封孔和充填材料封孔。

12、充填材料封孔用于钻孔形状规则或不规则的岩孔和煤孔中,充填材料封孔方法主要有水泥、砂浆封孔和聚氨酯封孔等。

13、使用钻杆应先检查。应 不堵塞、不弯曲 、丝口未磨损 ,不合格的不得使用。 14、孔内岩粉多时应加大 水量 延长开钻时间,切实冲好孔后方可停钻。。

二、选择题(每题1分,共20题)

1、钻孔出现着火预兆时应_A_。

A 、立即停风,换水,向钻孔内注水降温

B 、加大供风

C 、起钻观察

D 、堵住孔口 2、预防钻孔喷孔措施叙述不正确的是_A_。 A 、钻孔过13-14煤时加大水量 B 、在钻机与钻孔之间打上护身板

C 、使用定距离操作按钮

D 、加强施工地点的通风,防止瓦斯超限 3、石门揭煤在工作面距煤层法线距离10m 之外,至少打_B__个前探孔,掌握煤层赋存条件。

A 、1

B 、2

C 、3

D 、4

4、钻进仰角超过_C_度时,不得在套管正下方工作。

A 、15

B 、20

C 、25

D 、30 5、从岩石面开孔,开孔间距应大于_A_㎜。

A 、300

B 、400

C 、500

D 、600 6、煤层注水钻孔封孔深度一般应大于_D__米。

A 、1

B 、3

C 、4

D 、5

7、对于抽放瓦斯钻孔钻杆提出后要用_C__堵住钻孔以防瓦斯溢出。

A 、黄泥

B 、棉纱

C 、木塞

D 、聚胺酯 8、钻机启动后,注意力要集中,要求手不离_D__。

A 、工具

B 、钻杆

C 、钻机

D 、按钮

9、采用水力排屑时,钻孔直径应比钻杆直径大 B %以上,并且在钻孔施工过程中,严禁用铁器敲砸钻具。

A 、40

B 、50

C 、60

D 、80

10、ZYG-150全液压钻机在钻进过程中,压力不得超过_C _MPa 。

A 、5

B 、8.5

C 、10.5

D 、12.5 11、下列动作不正确的是_C _.

A 、安装钻杆先检查

B 、钻杆之间加棉线

C 、装卸钻头用管钳夹住合金片

D 、安完第一根再安第二根 12、要准确测量钻进距离,一般每钻进_B__米或换钻具时必须量一次钻杆,以核实孔深。

A 、5

B 、10

C 、15

D 、20

13、钻孔布置应均匀、合理。从岩石面开孔,开孔间距应大于 D mm 。

A 、500

B 、400

C 、350

D 、300 14、煤层孔封孔长度应不小于 A m 。

A 、6 B

、5 C 、4 D 、3

15、钻孔透采空区发现有害气体喷出时,要停钻加强通风并用__B_封孔,同时向矿调度汇报。

A 、木塞

B 、黄泥

C 、棉纱

D 、编织袋 16、封孔部分需扩孔,孔径一般不小于_A__㎜。

A 、100

B 、200

C 、300

D 、400 17、封孔套管一般要露出孔口__B_厘米。

A 、5-10

B 、10-15

C 、15-20

D 、20-25 18、钻孔的设计由矿编制,经矿_B__批准后执行。

A 、付总工程师

B 、总工程师

C 、矿长

D 、区(队)长 19、停钻_C__小时以上应将钻杆拉出来。

A 、4

B 、6

C 、8

D 、10 20、以下征兆属透水的是_A_。

A 、挂红

B 、瓦斯忽大忽小

C 、空气变热

D 、有煤油味

三、判断题(每题1分,共20题)

1、人工取下钻杆及加钻杆过程中,钻机的控制开关必须处在停止位置。(√)

单位 准考证号 姓名

姓名不许写在密封线外,否则试卷作废

封线内

2、、为了抓紧工时利用,可以用钻机带电拆卸钻杆。(×)

3、打钻人员须穿戴整齐、扎牢袖口,戴好手套。(×)

4、、机身安放平稳后,各机械固定部分要求装防护拦,保护罩。(×)

5、钻场面积必须大于钻机底座,周围要有足够的安全间隙。(√)

6、、按钻机地点应无浮煤,底板平整。(√)

7、钻机压在车柱必须按标准打牢打齐,且要根根有劲,并用铁丝固定在巷顶或钻场牢固位置,防止施工时晃动倒下砸人。(√)

8、、SGZ—IB型钻机,进行卷杨机操作,左手操纵卷杨刹车把,右手操纵卷杨提升手把。(×)

9、ZYG—150型全液压钻机在钻进过程中,不准随意调节泵站及操纵台上的安全溢流阀。(√)

10、更换钻头时,必须考虑孔径与钻头直径是否匹配。(√)

11、机械调速的钻机,在正常施工时可以随意改变钻机转速。(×)

12、机器运转时,可以将工具或其他物品放在钻机,水泵电机防护罩上。(×)

13、钻机操作人员精力集中,与接卸钻杆人员配合一致,听从一个口令,以免误动作。(√)

14、钻机工作期间,因司机有事可以暂时离开操纵台。(×)

15、起钻前,必须认真测量钻杆的残尺。(√)

16、提钻前必须清水冲孔,排净煤、岩粉。(√)

17、在提前钻过程中,操作要轻而稳,不得超负荷作业。(√)

18、钻杆提出后要用棉丝缠住两端,以防钻杆孔堵塞或丝口损坏。√

19、发现钻孔内有透水或突击征兆时,必须立即停止钻进,拔出钻杆。(×)

20、钻瓦斯抽放孔出现瓦斯急剧增大,顶杆等现象时,要及时采取措施。(√)

四、问答题(每题10分,共4题)

1、装运钻机时应注意哪些问题?

答:1)装运钻机前要进行检查,钻机各部件要齐全,电机必须防爆,电压应与电源相符,电缆无漏电现象,钻杆、钻具等应无损坏现象。

2)钻机装车后,要捆绑牢固。平巷运输时,听从上、下车场把钩人员的指挥。

3)装运不允许进脏物的部件时,要封堵好。

2、安装钻机时应注意的问题有哪些?

答:1)钻场面积必须大于钻机座,周围要有足够的安全间隙,在运输巷道安设钻机时,保证不影响运输。

2)按钻机地点应无浮煤,底板平整,地梁木平稳卧入底板,四角打上立柱及斜柱并迎山有力。采用丝杠的上端要将丝杠固定在巷顶或钻场牢固位置,防止施工时晃动倒下砸人。

3)机身安放平稳后,应上紧底固螺丝,各机械转动部分要安装防护栏,保护罩。

4)施工人员穿戴整齐,袖口扎牢,戴好防尘口罩眼镜,但严禁戴手套。

3、简答下班前后收尾工作?

答:1)下班前应该将本班工作情况及各种数据,如钻孔角度,进尺,套管下置深度,岩心采集情况、设备运转情况等,全面准确地记录下来;

2)严格执行现场交接班制度,本班组长和记录员要按记录表严格把本班情况记录清楚并签名;

3)钻孔竣工后,应在机长的指挥下做好各种善后处理,为下次施工做好各种准备工作。4、安装钻杆应注意哪些问题?

答:1)先检查钻杆,应不堵塞、不弯曲、丝口未磨损;不合格的不得使用。

2)连接钻杆时要对准丝口,避免歪斜和漏水。

3)装卸钻头时,应严防管钳夹硬质合金片,夹扁钻头和岩芯管。

4)安装钻杆时,必须在按完第一根后,再按第二根,不得一次安装2根以上钻杆。

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