Design Engineer Question: Download Design Engineer PDF

The toughness of a material __________ when it is heated.

A. increases
B. decreases
C. does not change

Option B

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Surface endurance limit of gear material is dependent upon its A. elastic strength B. yield strength C. brinell hardness number D. toughness	In a flange coupling, the flanges are coupled together by means of A. bolts and nuts B. studs C. headless taper bolts D. none of these