For effective use in professional communications, each instant message or text message should cover only _____ topic(s)
a. one
b. two
c. three
d. four
A
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When heavier liquid fuels are used, heat must be applied to reduce _________.
A. density B. viscosity C. temperature D. pressure
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A device that uses dissimilar metals to control electron flow is known as a(n) _____.
a. freezestat b. thermocouple c. firestat d. thermistor
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Describe the contact symbol.
What will be an ideal response?
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Heat intensity is measured in ______________________
A) Degrees B) BTUs C) Calories D) None of these
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