In 1948, what company invented the bipolar junction transistor (BJT), which revolutionized the electronics industry?
A. General Electric
B. Bell Laboratory
C. Code Blue Corporation
D. NASA
B
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When lifting heavy objects you should:
A. Use your leg muscles. B. Use your back muscles C. Ask for help if you are not certain you can handle the size or weight of the object D. Both A and C
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Explain what is meant by a chemical’s lower explosive limit and upper explosive limit.
What will be an ideal response?
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The ____________________ prevents injury to the horse’s mouth
Fill in the blank(s) with the appropriate word(s).
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What are the state(s) of the refrigerant in the accumulator-drier?
A) Vapor B) Liquid C) Both A and B D) Neither A nor B
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