Typically, the electronic leak detector emits a slow beeping sound that increases in __________ depending on the amount of refrigerant detected.
A. frequency
B. pitch
C. tone
D. volume
Answer: A
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Use the second law of thermodynamics to explain why fossil fuels and their energy aren’t recoverable once combusted.
What will be an ideal response?
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Reactor
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Which of the following letters in Figure 1 shows a dimension of 4'-9"?
a. A
b. B
c. C
d. D
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The ______ring is designed to seal most of the combustion pressure on top of the piston.
A. compression B. oil control C. oil scraper D. O
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