Electrical contacts, electrodes, and similar industrial components are often made from _____
a. magnesium alloys
b. precious metals
c. nonferrous iron
d. pure nickel
b
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Find the value of 
to use in expression (5.1) to construct a confidence interval with level
a. 95% b. 98% c. 99% d. 80%
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What is the main disadvantage of pollarding as a pruning technique?
What will be an ideal response?
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The relationship between a spring force and its deflection is given in the accompanying table. Plot the results using engineering paper and incorporating the ideas discussed in this chapter.
What will be an ideal response?
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Titanium becomes sensitive to embrittlement by oxygen, nitrogen, and hydrogen at temperatures above _____
a. 500°F (260°C) b. 1,000°F (538°C) c. 6,000°F (3,316°C) d. 10,000°F (5,538°C)
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