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____________________ is a air operated drill similar to Jack hammer.

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____________________ is a air operated drill similar to Jack hammer.

(a) Jack hammer

(b) Drifter

(c) Piston drill

(d) Stop hammer

I have been asked this question at a job interview.

The above asked question is from Equipments topic in section Construction Equipments of Construction & Building Materials

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The correct option is (b) Drifter

For explanation I would say: Drifter is used for drilling vertical or horizontal holes. They are extensively used in tunnel work and they can drill holes of diameter up to about 120 mm. The cuttings can either be removed by air or water.

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