'Six-tenth factor' rule is used for estimating the
Options
A. equipment installation cost.
B. equipment cost by scaling.
C. cost of piping.
D. utilities cost.
Correct Answer
equipment cost by scaling.
Chemical Engineering Plant Economics problems
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1. A machine has an initial value of Rs. 5000, service life of 5 years and final salvage value of Rs. 1000. The annual depreciation cost by straight line method is Rs.
5. '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
Correct Answer: does not measure the discounted rate of return.
8. The depreciation during the year 'n', in diminishing balance method of depreciation calculation, is calculated by multiplying a fixed percentage 'N' to the
Options
A. initial cost.
B. book value at the end of (n - 1)th year,
C. depreciation during the (n - 1)th year.
D. difference between initial cost and salvage value.
Correct Answer: Plates with butt welded joints are less expensive compared to lap welded joints, because squaring of plates is not necessary.
10. Pick out the wrong statement.
Options
A. Debt-equity ratio of a chemical company describes the lenders contribution for each rupee of owner's contribution i.e., debt-equity ratio = total debt/net worth.
B. Return on investment (ROI) is the ratio of profit before interest & tax and capital employed (i.e. net worth + total debt).
C. Working capital = current assets + current liability.
D. Turn over = opening stock + production closing stock.