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Practice questions on March 26, 2017; replies will earn 2–6 points (no scoring after the (** is displayed), thank you for your replies)

2017-03-25View Original

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Multiple-choice question: The purpose of performing thermal tightening before starting up the cold exchange equipment is to eliminate the effects caused by the thermal expansion of bolts ( B ). A. The material becomes brittle B. The compressive force decreases C. Plasticity decreases D. Stiffness decreases

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