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Chemical Engineering Plant Economics

Chemical Engineering Plant Economics
If the interest rate of 10% per period is compounded half yearly, the actual annual return on the principal will be __________ percent.

>20
< 20
10
20

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Chemical Engineering Plant Economics
If an amount R is paid at the end of every year for 'n' years, then the net present value of the annuity at an interest rate of i is

R(1 + i)n
R/(1 + i)n
R[((1 + i)n - 1)/i]
[((1 + i)n - 1)/i(1 + i)n]

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Chemical Engineering Plant Economics
Which of the following ceramic packing materials is the costliest of all?

Berl saddles
Intalox saddles
Raschig rings
Pall rings

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Chemical Engineering Plant Economics
'P' is the investment made on an equipment, 'S' is its salvage value and 'n is the life of the equipment in years. The depreciation for rath year by the sum-of years digit method will be

2(n - m + 1)/n(n + 1) x (P - S)
M/n x (P - S)
1 - (P/S)1/m
(P - S)/n

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Chemical Engineering Plant Economics
Cost of piping in a fluid processing unit (e.g., distillation) of a chemical process plant is about __________ percent of the fixed capital investment.

13
22
34
4

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Chemical Engineering Plant Economics
Optimum economic pipe diameter for fluid is determined by the

Density of the fluid
Total cost considerations (pumping cost plus fixed cost of the pipe)
Viscosity of the fluid
None of these

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