In ________________ drilling pattern, the drill holes are arranged nearly parallel in horizontal plane with a slight inclination.(a) Pyramidal cut(b) Straight line cut(c) Centre cut(d) Parallel cutI got this question in an online interview.My question comes from Equipments topic in division Construction Equipments of Construction & Building Materials

In ________________ drilling pattern, the drill holes are arranged nea

1.	In ________________ drilling pattern, the drill holes are arranged nearly parallel in horizontal plane with a slight inclination.(a) Pyramidal cut(b) Straight line cut(c) Centre cut(d) Parallel cutI got this question in an online interview.My question comes from Equipments topic in division Construction Equipments of Construction & Building Materials
Answer» Right answer is (c) Centre cut The BEST I can explain: In general, it is to be OBSERVED that the drilling pattern selected should give the desired breakage of ROCK with minimum over breakage. The term drilling pattern is used to indicate the spacing of the drill holes.

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