Instrumentation costs in a modern chemical processing plant typically account for _____________________ percent of total plant investment?
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Answer: B. 20 to 30
Explanation
Modern automated chemical processing facilities rely heavily on advanced instrumentation and computerized control systems. Purchased equipment costs for sensors, transmitters, and control valves represent significant capital outlays. Instrumentation expenses typically account for twenty to thirty percent of total purchased equipment costs. Process control systems maintain safe operating conditions by monitoring temperature, pressure, and flow rates. Modern distributed control systems integrate thousands of field instruments into centralized plant control rooms. Capital cost estimation guidelines help engineers project total plant investment from major equipment costs.
Advanced instrumentation improves product quality, maximizes chemical yields, and enhances plant safety significantly. Properly engineered control loops prevent dangerous process upsets and environmental release incidents. Investing in high-quality instrumentation reduces long-term maintenance costs and operational downtime risks. Option A underestimates the high cost of modern electronic instrumentation and computer control systems. Option C overestimates typical instrumentation costs by confusing them with total piping expenditures. Option D exaggerates instrumentation investments beyond realistic chemical processing plant cost distributions.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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