Which of the following refrigerants has the lowest boiling temperatures at atmospheric pressure?

A. R-12
B. R-22
C. R-134a
D. R-502


Answer: D

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Many Whigs in Britain hoped for an American victory in the War for Independence because they

A. favored French domination of North America. B. were strongly pacifist. C. feared that if George III triumphed, his rule at home might become tyrannical. D. rejected colonialism. E. opposed the mercantilist system.

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A complete flower is composed of:

a. stamen, pistil, petal, sepal c. stamen, anther, pistil, sepal b. blade, pistil, petal, anther d. blade, stamen, petal, sepal

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Analyze the frame in Figure P11.19 by moment distribution. Determine all reactions and draw the shear and moment curves. Given: EI is constant.

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In residential construction, posts and beams are usually spaced at _____ o.c.

A. 36" (900 mm) B. 48" (1200 mm) C. 52" (1300 mm) D. 60" (1500 mm)

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