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'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. | |
A. | l to 5 [Wrong Answer] |
B. | 10 to 20 [Correct Answer] |
C. | 25 to 35 [Wrong Answer] |
D. | 35 to 45 [Wrong Answer] |