Name two commonly referenced publications for obtaining the fire ratings of frequently used building assemblies.
What will be an ideal response?
1. International Building Code
2. Underwriters Laboratories (UL) Fire Resistance Directory
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What does a circuit breaker do?
What will be an ideal response?
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The compression ratio for an R-22 compressor operating with 68.5 psig suction pressure and 260 psig heat pressure is ____________________.
Fill in the blank(s) with the appropriate word(s).
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How does an undercharge affect the superheat of a fixed restriction system?
What will be an ideal response?
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When a branch of a parallel resistance network is replaced by an open circuit, will the total resistance RT increase, decrease, or stay the same?
What will be an ideal response?
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