1. There are two basic types of Waste. What are they?

2. How is MTBF related to Failure rate?

How is MTBF related to Failure rate?

	a.	MTBF is measured in hours, while Failure rate is measured in years
	b.	MTBF is normally distributed, with Failure % as mean and Failure rate as its standard deviation
	c.	MTBF is the reciprocal of Failure rate
	d.	Both MTBF and Failure rate increase when breakdown maintenance is replaced by preventive maintenance
	e.	MTBF and Failure rate are unrelated concepts

3. In contrast to traditional manufacturers lean firms rely more on which of the following?

		group technology
		CAD
		CAM
		all of the above

4. What are internal and external set-up activities? Give some examples of how internal activities can be converted to external.