Chemical Engineering Plant Economics
Optimum number of effects in a multiple effect evaporator is decided by the

Cost benefit analysis
Floor area availability
Evaporation capacity required
Terminal parameters

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Chemical Engineering Plant Economics
Payback period

And economic life of a project are the same
Is affected by the variation in earnings after the recovery of the investment
Is the length of time over which the earnings on a project equals the investment
All of these

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Chemical Engineering Plant Economics
In a manufacturing industry, break even point occurs, when the

Total annual product cost equals the total annual sales
Annual sales equals the fixed cost
Annual profit equals the expected value
Total annual rate of production equals the assigned value

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