X-bar is defined as:

a. An unbiased smaller sample of a larger population used to represent the entire population.
b. the average of a series of numbers.
c. the average of the subgroup averages.
d. a simple tool designed to quantitatively monitor important characteristics of a process.


Answer: B

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The maximum allowable drive shaft runout is ________.

A) 0.50 in. (13 mm) B) 0.015 in. (0.4 mm) C) 0.030 in. (0.8 mm) D) 0.10 in. (2.5 mm)

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A complete set of construction drawings includes sections that show the spread footing in greater detail.

Answer the following statement true (T) or false (F)

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Tolerance in most switches is about 2%; ____________________ is about 1%.

Fill in the blank(s) with the appropriate word(s).

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Technician A says that most modern friction facings used on truck drum brake shoes are much softer than the asbestos facings used a generation ago. Technician B says that a disadvantage of modern friction facings is that they destroy brake drums at a much faster rate than asbestos facings. Who is correct?

A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B

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