Many coaxial heat exchangers are made of ____.
A. steel
B. aluminum
C. nickel
D. cupro-nickel
Answer: D
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Most early railroads in the United States were built in the
A. North. B. Old South. C. lower Mississippi Valley. D. Far West. E. Appalachian Mountains.
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The ____________________ consists of all the external conditions that affect an organism or community and influence its development or existence
Fill in the blank(s) with correct word
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In the accompanying figure, the arrow points to a(n) ____.
A. counterbored hole B. chamfered hole C. countersunk hole D. extension hole
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The standard wooden types of graphite pencils are:
A. P, P-1, P-2, P-3 B. HB, H, H-2, H-3, H-4 C. PH, PH-1, PH-2, PH-3 D. PN, PN-1, PN-2, PN-3, PN-4
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