The amount of heat energy required to raise 1 lb of water by 1 degree Fahrenheit is known as one (1):
A. kilopascal
B. Btu
C. joule
D. horsepower
Answer: B
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______________ is the displacement between two or more waveforms with respect to a reference point.
Fill in the blank(s) with the appropriate word(s).
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When steel is rolled while it is cold, it _____.
a. gets softer b. is annealed c. gains tensile strength d. gets thicker
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An expanding population in the United States and the world has caused an increased demand for food
Indicate whether the statement is true or false.
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When a diode is in reverse bias, what does it do?
A. allows current flow in both directions B. permits DC current flow only C. switches AC to DC D. blocks current flow
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