Due to its fast-freeze characteristics and limited slag production, the electrode used for the root pass of an
SMAW open-root pipe joint is the _____.
a. E9018
b. E7018
c. E6010
d. E4010
c
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Bronze is an alloy of copper, zinc, and tin with small amounts of other elements. If the percent composition is 56% copper, 1% zinc, and 42% tin, what is the ratio of copper to tin?
A. 4/3 B. 3/2 C. 2/1 D. 3/1
A piping drawing that shows a three-dimensional view of the system is a(n) _____ drawing.
a. elevation b. isometric c. plan d. double-line
The middle layer of the blastula is called the _____________________
Fill in the blank(s) with correct word
Because mixed occupancies may present different types and levels of hazards, which of the following may be required?
A. Type V building construction B. Type IV building construction C. Fire-resistive flooring in both occupancies D. Fire-resistive separations between various occupancies