OLMC stands for On-Line Micro Computer
Indicate whether the statement is true or false
FALSE
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An ISO "N6" roughness is comparable to:
A. 16 microinches B. 32 microinches C. 63 microinches D. 125 microinches
In a study of the effect of cooling rate on the hardness of welded joints, 50 welds cooled at a rate of 10°C/s had an average Rockwell (B) hardness of 91.1 and a standard deviation of 6.23, and 40 welds cooled at a rate of 30°C/s had an average hardness of 90.7 and a standard deviation of 4.34.
a. Find a 95% confidence interval for the difference in hardness between welds cooled at the different rates. b. Someone says that the cooling rate has no effect on the hardness. Do these data contradict this claim? Explain.
A good reading for a cylinder leakage test would be ________
A) All cylinders above 70% leakage and within 7% of each other B) Within 20% leakage between cylinders C) All cylinders above 20% leakage D) All cylinders below 20% leakage
The part of the cam system that moves in an up and down motion is called the:
A. cam B. follower C. shaft D. roller bearing