(a) cool rapidly to 350°c (660°f), hold for 103 s, then quench to room temperature. (b) rapidly cool to 625°c (1160°f), hold for 10 s, then quench to room temperature. (f) cool rapidly to 665°c (1230°f), hold for 103 s, then quench to room temperature. (g) rapidly cool to 575°c (1065°f), hold for 20 s, rapidly cool to 350°c (660°f), hold for 100 s, then quench to room temperature.

(a) 100% bainite (b) 50% medium pearlite and 50% martensite (c) 50% fine pearlite, 25% bainite, and 25% martensite (d) 100% spheroidite (e) 100% tempered martensite (f) 100% coarse pearlite (g) 100% fine pearlite (h) 50% bainite and 50% martensite

Explanation:

find attached image for clarity

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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