Red Seal Machinist Practice Questions - Red Seal Machinist (Interprovincial Standards Red Seal Examination) Exam

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Which gas combination is the primary inhalation hazard when machinist coolant (water-based cutting fluid) becomes contaminated and stagnant?

Carbon dioxide and argon Bacterial endotoxins and mist aerosols Pure nitrogen Helium and neon

Correct Answer:

Bacterial endotoxins and mist aerosols

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