How can a nontoxic, nonflammable refrigerant still be dangerous when released in a confined space?
A) A chemical reaction with the air can create a flammable byproduct.
B) The refrigerant can replace the air, causing suffocation.
C) A chemical reaction with the air can create a toxic gas.
D) The space temperature can quickly drop below freezing.
B
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What will be an ideal response?
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Fill in the blank(s) with the appropriate word(s).
Tapers may be measured when the work is in the lathe by using:
A) A taper plug or ring gage B) A rule and micrometer caliper C) A taper micrometer D) All of the above
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a. weld defects b. oxidation c. puddles that are shallower d. more deeply penetrating puddles