Exam 14: Jit and Lean Operations

If a firm's product mix is 60 percent of product A and 20 percent each of products B and C, an optimal mix-model production schedule would be successive sequences of AAABC.

In the lean approach, inventories are reduced gradually, instead of eliminating inventories as rapidly as possible.

Previously, management calculated the number of kanban cards allowed by using a value of 1.3 for X. Assuming nothing else (e.g., usage rates, container capacities, etc.), which of the following values for X would indicate management's belief that the system has become more efficient?

In the lean philosophy, the larger the lot size, the easier it is to schedule.

Which of the following is not something commonly found in lean systems? (I) Waste reduction (II) Output match to a detailed forecast (III) Visual controls (IV) Quick changeovers (V) Long production runs

Kanban is the Japanese term for autonomation.

The small lot-sizing policy works well in a situation where both holding costs and setup costs are high.

One major difference between the use of kanban and MRP in scheduling the products to be built is that kanban is primarily a manual system while MRP uses computers.

With regard to suppliers, lean systems typically involve:

The Four Star Publishing Company uses 60 reams of paper each hour at one of its high-speed printing stations. The cycle time for a standard container, which holds 15 reams of paper, averages 40 minutes. If management has decided to use three containers, what efficiency factor was applied?

The goal of lean operations is to produce output using fewer resources than traditional planning systems.

The ultimate objective in a lean system is:

Which of the following is not a benefit of small lot sizes in lean systems?

Process design that supports lean does not include:

Engineering changes should not be made in the six-month period following the introduction of a new product.

A benefit of lean systems is that lead times are increased, allowing more time for processing.

Lean systems often use layouts that are based on group technology product requirements.

A real advantage of the lean philosophy is the reduction of coordination effort required.

Which of the following questions is not answered by value stream mapping?

The use of small lot sizes in lean operations is in conflict with the EOQ approach since setup costs tend to be significantly higher than holding costs.