Estimate the air consumption of the following equipment to be used on a rock excavation project. Assume an 8% leakage loss, a job load factor of 0.90, and average values of tool air consumption from Table 1.What is the minimum rated size of air compressor required if the project is located at an altitude of 6000 ft (1830 m)?

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Equipment Medium-weight track drill Heavy-weight track drill 55-lb hand-held drill Number 215