In severe cases of overheating, zinc in a brazing alloy may start to burn with a(n) ____ flame.

A. orangish
B. whitish
C. orangish-whitish
D. reddish


Answer: C

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The equation: 5 x (3 + 4) = (5 x 3) + (5 x 4) is an example of the Distributive Property.

Answer the following statement true (T) or false (F)

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To add strength to the stair assembly, a pressure-treated 2 x 4 may be fastened to the floor to serve as a _____

a. ledger b. brace c. strongback d. purlin

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For the fin equation described in Problem 6.25, if the units of T, h, P, A, and x are expressed in degree Rankine (°R), Btu/h·ft2 ·°R, ft, ft2, and ft, respectively, what are the appropriate units for thermal conductivity k if the fin equation is to be homogenous in units? Show all steps of your work.

What will be an ideal response?

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El tiempo de espera para el funcionamiento de los sistemas de alarma con energía secundaria se define en:

a. NFPA 1. b. NFPA 70®. c. NFPA 72®. d. NFPA 101®.

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