Industrial Engineering Flashcards
7 cards from real BE/B Eng Bachelor of Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Industrial Engineering flashcards as text
What is the primary objective of linear programming in industrial engineering?
Answer: To maximize or minimize a linear objective function subject to linear constraints
Linear programming optimizes (maximizes or minimizes) a linear objective function subject to a set of linear equality or inequality constraints.
In the simplex method for linear programming, the optimal solution always occurs at which location in the feasible region?
Answer: At a corner point (extreme point/vertex) of the feasible region
The fundamental theorem of linear programming guarantees that if an optimal solution exists, it occurs at a corner (vertex) of the convex feasible polyhedron.
The Economic Order Quantity (EOQ) model determines the optimal order quantity by minimizing the total of which two costs?
Answer: Ordering (setup) cost and inventory holding (carrying) cost
EOQ balances ordering/setup costs (which decrease with larger orders) against inventory holding costs (which increase with larger orders) to find the cost-minimizing quantity.
In PERT/CPM network analysis, the critical path is defined as:
Answer: The longest path through the network, which determines the minimum project duration
The critical path is the longest sequence of dependent activities from start to finish; any delay on this path directly delays the entire project.
Time study, a classical work measurement technique, is primarily used to:
Answer: Establish standard times for performing defined work tasks
Time study involves observing and timing a qualified worker performing a task at a normal pace, then applying rating factors and allowances to establish a standard time.
In queuing theory, Little's Law states L = λW. What does 'L' represent?
Answer: The average number of customers in the system (queue + service)
Little's Law: L (average number of customers in the system) = λ (average arrival rate) × W (average time each customer spends in the system).
Which of the following is NOT one of the seven wastes (Muda) identified in lean/Toyota Production System?
Answer: Innovation
The seven TPS wastes are: overproduction, waiting, transportation, over-processing, excess inventory, unnecessary motion, and defects — innovation is not a waste.