Chemical Engineering Plant Economics
Which of the following is the costliest source of getting hydrogen on commercial scale for the manufacture of nitrogeneous fertiliser?

Coke oven gas
Alectrolysis of water
Steam reforming of naphtha
Coal gasification

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Chemical Engineering Plant Economics
Payback period

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
And economic life of a project are the same
All of these

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Chemical Engineering Plant Economics
Which of the following relationship is not correct is case of a chemical process plant?

Total product cost = manufacturing cost + general expenses
Total product cost = direct production cost + plant overhead cost
Manufacturing cost = direct product cost + fixed charges + plant overhead costs
General expenses = administrative expenses + distribution & marketing expenses

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