The ____ is used to quickly burn out small amounts of slag trapped along the edge of the root pass.
A. filler pass
B. hot pass
C. root pass
D. cover pass
Answer: B
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A locknut retains the steering wheel to the shaft.
Answer the following statement true (T) or false (F)
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How is the COP rating different from the HSPF?
A) Only the COP measures defrost. B) COP takes data from multiple weather conditions. C) HSPF takes data from multiple weather conditions. D) Only the HSPF measures heating and cooling units.
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Line voltage thermostats normally operate on:
A) 120 volts. B) 24 volts. C) 480 volts. D) 277 volts.
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LP gas has a heat content of __________ Btu/cu.ft.
A. 1000 B. 1050 C. 3200 D. 5000
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