Chemical Engineering Plant Economics
In an ordinary chemical plant, electrical installation cost may be about

Either A or B
10-15% of purchased equipment cost
3-10% of fixed capital investment
Neither A nor B

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Chemical Engineering Plant Economics
Payback period

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

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