Plant Operations Management Flashcards
7 cards from real CPM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Plant Operations Management flashcards as text
In Total Productive Maintenance (TPM), autonomous maintenance is primarily the responsibility of whom?
Answer: Machine operators
Autonomous maintenance shifts routine inspection and minor upkeep tasks to machine operators to catch problems early.
Which inventory model minimizes total holding and ordering costs by calculating an optimal order quantity?
Answer: Economic Order Quantity (EOQ) model
The EOQ model balances ordering costs and holding costs to find the quantity that minimizes total inventory cost.
A plant experiences a sudden spike in scrap rate. Which root-cause analysis tool creates a visual representation of potential causes organized by category?
Answer: Ishikawa (fishbone) diagram
An Ishikawa diagram organizes potential causes into categories such as man, machine, method, material, and environment.
What does the term 'changeover time' refer to in manufacturing operations?
Answer: The elapsed time between the last good part of one run and the first good part of the next
Changeover time (setup time) spans from the last conforming part of one production run to the first conforming part of the next.
Which lean concept identifies and eliminates the eight types of waste (TIMWOODS) in manufacturing?
Answer: Muda elimination within the Toyota Production System
Muda (waste) elimination is a core principle of the Toyota Production System, targeting Transportation, Inventory, Motion, Waiting, Overproduction, Over-processing, Defects, and Skills.
A plant manager wants to reduce work-in-process (WIP) inventory. Which lean tool directly controls the maximum amount of WIP allowed between process steps?
Answer: CONWIP or kanban limits
CONWIP and kanban systems cap WIP by limiting the number of work orders or cards in circulation between stations.
When calculating labor efficiency variance, which comparison is made?
Answer: Standard hours allowed for actual output vs. actual hours worked, multiplied by standard rate
Labor efficiency variance = (Standard hours for actual output – Actual hours) × Standard rate, isolating efficiency from rate effects.