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_________________?
Correct answer: B. 0.6
- A. 0.1
- B. 0.6
- C. 0.2
- D. 0.8
Explanation
The six-tenths rule is written as cost proportional to capacity raised to the 0.6 power. Therefore, a log-log plot has slope 0.6, since the exponent becomes the slope.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Plant Design and Economics
803 free Plant Design and Economics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Plant Design and Economics questions
Optimum economic pipe diameter for fluid is determined by the___________________?
Construction expenses are roughly _____________ percent of the total direct cost of the plant ?
'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?
Which of the following is not a component of the working capital for a chemical process plant ?
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 ?
Which of the following is not a mathematical method for evaluation of profitability of a chemical process plant ?