What this sample is
An independently authored Industrial & Systems question with a complete setup and solution. Use it to evaluate your model selection, handbook path, unit handling, and answer check.
ISFREE PRACTICE SAMPLE
FE Industrial and Systems practice questions with worked solutions
FE Industrial and Systems practice is largely a model-selection exercise. Name the decision, objective, constraints, assumptions, and requested output before touching the calculator.
Try an original Industrial & Systems question
Choose an answer before reviewing the solution. Pay attention to the governing model and setup, not only the final choice.
Modeling and Quantitative AnalysisMedium
Question 1 of 1 free
An M/M/1 service system has an arrival rate of 4 customers per hour and a service rate of 5 customers per hour. The average number of customers in the system is most nearly:
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What it is not
It is not an NCEES question and does not come from any NCEES practice exam. For NCEES practice products and current exam policies, use the NCEES exam-prep catalog.
A better review loop for FE Industrial and Systems
Practice creates useful evidence only when the review explains why the setup worked or failed. Use this three-part loop after every question.
CHECK 1
Classify the model
Distinguish optimization, inventory, queueing, reliability, forecasting, simulation, and economic comparison.
CHECK 2
Define the output
Separate a decision variable, objective value, probability, rate, and performance measure.
CHECK 3
Interpret the answer
State what the number means operationally and whether the assumptions fit the system.
Reference Handbook workflowSearch for the model name - M/M/1, economic order quantity, control chart, present worth, reliability, or linear programming - before searching individual symbols.