What is the minimum level of eye protection required when using an oxy-acetylene cutting torch?
A. UL rated safety goggles.
B. Any shades with 100% UV protection will do.
C. Lens with a grade 4 rated filter.
D. Lens with a grade 12 rated filter.
C. Lens with a grade 4 rated filter.
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If you have an exceptionally long bar, rather than extend the scale to accommodate it and risk reducing the other bars to a minimal size, you should use a ____.
A. break line B. marker C. tick mark D. legend
Common grains used to feed gerbils include corn, oats, wheat, and ____________________
Fill in the blank(s) with correct word
The amount of warpage in a type of wafer used in the manufacture of integrated circuits has mean 1.3 mm and standard deviation 0.1 mm. A random sample of 200 wafers is drawn.
a. What is the probability that the sample mean warpage exceeds 1.305 mm? b. Find the 25th percentile of the sample mean. c. How many wafers must be sampled so that the probability is 0.05 that the sample mean exceeds 1.305?
The bore of an engine is 94.6 mm. Find the radius of each cylinder
A) 189.2 mm B) 47.3 mm C) 9.46 cm D) None of these