Question

Cost of instrumentation in a modern chemical plant as compared to the total plant cost, ranges from:

• A. 1.5 to 10%
• B. 20 to 30%
• C. 40 to 50%
• D. 60 to 70%

Hint:

The cost of instrumentation is a small but important part of the overall plant cost, typically between 1.5% and 10%.

Answer 1

The Correct Option is A

Step 1: Assessing Instrumentation Expenses.
In contemporary chemical facilities, instrumentation expenses constitute a minor fraction of the overall project expenditure, typically falling between 1.5% and 10% of the total investment.

Step 2: Evaluating Alternatives.
- (A) The standard range for instrumentation costs is 1.5% to 10%. - (B), (C), and (D) These figures represent excessive costs for instrumentation, as they surpass the typical 10% threshold in standard plant configurations.

Conclusion: \[\boxed{\text{A) 1.5 to 10%}}\]