Coating Maths: Dry Film, Volume Solids and Transfer Loss

Coating Maths: Dry Film, Volume Solids and Transfer Loss

Original quantitative topic practice in English. All 24 questions are included in a shuffled order. Each question supplies its own data and model assumptions; use only those assumptions. Choose one answer. Practice target: 20/24, not an official examination pass mark. Keep full intermediate precision. These exercises cover the calculation scope in the title; they do not constitute a full Red Seal examination, trade qualification, site design or operating specification.
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A paper coating estimate covers 210 m² with 2 coats, each needing 55 micrometres dry film. Volume solids are 50%; transfer efficiency is 80%. Dry volume in litres = area(m²) × total dry thickness(µm) ÷1000. Wet applied volume = dry volume/solids fraction; purchased liquid need = applied volume/efficiency fraction. Buy 5 L cans. The supplied model excludes thinning and is not an application specification. Calculate the transfer loss in litres. Keep intermediate values unrounded; round the final answer to 4 decimal places if needed.