Chemical Engineering MCQs

Page No. 758

‘Utilities’ in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from _______________ percent of the total product cost?


a1 to 5

✖


b10 to 20

✓


c25 to 35

✖


d35 to 45

✖


View Answer 10 to 20

Construction expenses are roughly _____________ percent of the total direct cost of the plant ?


a2

✖


b10

✓


c30

✖


d50

✖


View Answer 10

Optimum economic pipe diameter for fluid is determined by the___________________?


aViscosity of the fluid

✖


bDensity of the fluid

✖


cTotal cost considerations (pumping cost plus fixed cost of the pipe)

✓


dNone of these

✖



Following the six-tenth factor rule, if a log-log plot of capacity of the equipment vs. cost of the equipment is made, then a straight line is obtained, whose slope is equal to_________________?


a0.1

✖


b0.6

✓


c0.2

✖


d0.2

✖


View Answer 0.6

Which of the following is not a component of the working capital for a chemical process plant ?


aProduct inventory

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bIn-process inventory

✖


cMinimum cash reserve

✖


dStorage facilities

✓


View Answer Storage facilities

Optimum number of effects in a multiple effect evaporator is decided by the____________________?


aCost benefit analysis

✓


bFloor area availability

✖


cTerminal parameters

✖


dEvaporation capacity required

✖


View Answer Cost benefit analysis

An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the payback time ?


a5 years

✖


b7 years

✓


c12 years

✖


d10 years

✖


View Answer 7 years

Which of the following is not a mathematical method for evaluation of profitability of a chemical process plant ?


aCash reserve

✓


bRate of return on investment

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cPayout period

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dDiscounted cash flow based on full life performance

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View Answer Cash reserve

In which of the electric power generation system, the operating cost is minimum ?


aThermal

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bNuclear

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cHydroelectric

✓


dFast breeder reactor

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View Answer Hydroelectric

Direct costs component of the fixed capital consists of _____________________?


aContingencies

✖


bOnsite and offsite costs

✓


cLabour costs

✖


dRaw material costs

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