CPIM Detailed Scheduling 4

Question 1

What is 'Operation Splitting' and why is it used in detailed scheduling?

Accepted Answer

Dividing a work order across multiple time periods to reduce lead time

Answer

Operation splitting divides a work order into smaller lots that can be run simultaneously on multiple machines, reducing total lead time.

Question 2

In MRP, what is the 'time fence' nearest to the current date that typically locks the schedule?

Accepted Answer

Frozen zone (firm planned horizon)

Answer

The frozen zone or firm planned horizon is the period closest to today where the master schedule is locked and changes require management approval to avoid disruption.

Question 3

Which of the following is a primary input to detailed capacity requirements planning (CRP)?

Accepted Answer

Open work orders, planned orders, and routing data

Answer

CRP uses planned and open work orders combined with routing information (operations, work centers, run times) to calculate detailed capacity needs.

Question 4

What scheduling approach is typically used in a repetitive manufacturing environment?

Accepted Answer

Rate-based scheduling tied to daily/weekly production rates

Answer

Repetitive manufacturing uses rate-based scheduling, where production is scheduled as a rate per period (e.g., 200 units/day) rather than as discrete work orders.

Question 5

A machine center has a load of 500 hours scheduled in a 400-hour capacity week. What is the best short-term corrective action?

Accepted Answer

Authorize overtime or use an alternate work center

Answer

When short-term overloads occur, the typical corrective actions are authorizing overtime, adding shifts, or routing work to an alternate capable work center.

(CPIM) Certified in Planning and Inventory Management Practice Test

(CPIM) Certified in Planning and Inventory Management Practice Test

CPIM Detailed Scheduling 4