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Exam 14: Jit and Lean Operations

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Question 41

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A production cell uses 240 pounds of plastic resin each 8-hour day.Resin is transported in drums that hold 100 pounds each.The material is obtained from a nearby supplier, and has a 12-hour cycle time.An efficiency factor of .15 has been assigned to this cell.What is the optimum number of containers to support this operation?

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Question 42

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In the lean philosophy, producing more than two order quantities represents waste.

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Question 43

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Value-stream mapping is concerned strictly with the flow of materials through a production system.

"Autonomation" indicates that the firm is attempting to reduce its dependence on automated equipment.

For a company with a product mix of 40% of product A and 30% each of products B and C, which of the following mixed-model sequences most reflects the lean philosophy?

A successful conversion to a lean system requires that the conversion:

In the lean philosophy, the ideal lot size is:

Lean purchasing requires frequent contract bidding by multiple sources to ensure the buyer of competitive prices.

The Five S's don't include _______.

Lean operations are unable to easily handle changes of output or product mix.

One way of reducing the number of suppliers to the organization is to limit contacts to only one or two tiers of suppliers.

Increased setup times equal increased work in process inventories.

One problem with lean operations is that they can lead to much frustration and disappointment of people on the shop floor due to the need for continuously monitoring and expediting resource availability.

In lean operations, a responsibility of the cross-trained worker is to check the quality of the work of others.

The term that refers to the automatic detection of defects is:

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

Kanban focuses on specific part numbers; CONWIP does not.

It is important to lower the water (inventory) completely to expose all the rocks (problems).

A fundamental tenet of the lean philosophy is that workers are paid based on seniority.

Value-stream mapping is a technique focused on finding new ways of adding value for critical stakeholders such as customers.