Roofing felt, also referred to as tar paper, is made from sheets of ____ that are impregnated and coated with tar to provide a water-resistant coating for protecting roofs as well as exterior walls.
A. felt
B. a combination of paper and felt
C. paper
D. either paper or felt
Answer: D
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A cubic yard of soil contains ____ cubic feet
A) 30 B) 27? C) ?9 D) 36
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The great and middle cardiac veins drain blood directly into the
A) superior vena cava. B) inferior vena cava. C) coronary sinus. D) coronary sulcus. E) aorta.
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Shaft packing and insert mounting, which includes O-rings, V-rings, wedges, and U-cups, describe the _____ found in mechanical seals
A) closing mechanisms B) secondary seals C) primary faces D) lubricating surfaces
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Express the ratio as a fraction in lowest terms.6/13:9/13
Fill in the blank(s) with the appropriate word(s).
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