When soldering copper wire in medium gauge truck electrical circuits, what should be used to produce the heat?
A. use cold melt solder only
B. 100 watt soldering gun
C. 500 watt soldering iron
D. propane torch
Answer: B
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Systems that involve the use of compressed air are governed by the principles of _____.
a. hydraulics b. phonetics c. pneumatics d. dynamics
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The bony fish appeared in the Ordovician period and became abundant during the _____ period
A) Devonian B) Triassic C) Jurassic D) Cretaceous
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Nearly all organic compounds from which living beings are made have as their backbone, chains or rings of ________ atoms
A) aluminum B) oxygen C) nitrogen D) carbon E) none of the above
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What type of flow regulation valve provides a fine adjustment of low flow volumes to control instrument, meter line, or gauge piping?
A. globe B. needle C. check D. ball
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