Practice welds are grouped according to the type of joint and the class of welding electrode.
Answer the following statement true (T) or false (F)
True
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Which of the following is used only as a hot-face fab
a. Silicone-coated, impregnated fiberglass or amorphous silica b. PTFE-coated, impregnated fiberglass or amorphous silica c. Aluminum-foil-laminated fiberglass or amorphous silica d. Vermiculite-coated, impregnated fiberglass or amorphous silica
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People can get BSE from which of the following?
a. Genetic predisposition c. Petting a mad cow b. Poorly cooked meat d. a and b
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The ASHRAE standard for whole house ventilation in CFM is calculated as ____% of the CFA, plus 7.5 CFM times the number of bedrooms plus 1.
A. 1 B. 5 C. 10 D. 25
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A type of cut often made with a circular saw is called a _____ cut.