Explain the difference between soldering and brazing.
What will be an ideal response?
Soldering and brazing involve the introduction of a molten filler material between the mating surfaces being joined. Soldering involves filler material with melting temperatures below 800°F, while brazing typically involves filler materials with melting temperatures over 800°F.
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To test the air leakage rate you should
Air brake
Identify the axiom or postulate that applies to the following statement. If AB = CD, then AB÷ 10 = CD÷ 10
Fill in the blank(s) with the appropriate word(s).
Air conditioning tube and fin coils are commonly available as:
A) "A" coils, "T" coils, and "O" coils. B) Slant coils, "A" coils, and "N" coils. C) "N" coils, "T" coils, and "P" coils. D) Slant coils, "T" coils, and "P" coils.
A reverse-biased diode acts like a(n)
A) short circuit. B) turned on transistor. C) open circuit. D) energized NO relay.