[Soda Ash Knowledge] Question of the Day (96) January 7, 2010
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Please hide replies; in principle, posts with unhidden replies will not be graded. Edited posts will not be graded either. Specific hiding method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 This month’s question is taken from page 12 of “Question Bank for Technical Workers’ On-the-Job Training – Operators in Soda Ash Production”. Download the e-book here: http://bbs.hcbbs.com/thread-13140-1-2.html Multiple-choice questions: 1. The amount of pure CO2 produced per ton of limestone and coal mixture is ( ). A. 300 m³ B. 200 m³ C. 400 m³ 2. The thermal efficiency of lime kilns is generally ( ). A. 60%-65% B. 75%-80% C. 90%-95% 3. Among the following equipment, which one serves to distribute materials evenly? ( ) A. Stone spreader B. Stone lifter C. Protective plate
1.A 2.B 3.A
1. The amount of pure CO2 generated per ton of limestone and coal blending is (A). A. 300 m³ B. 200 m³ C. 400 m³ 2. The thermal efficiency of lime kilns is generally (B). A. 60%-65% B. 75%-80% C. 90%-95% 3. Among the following equipment, which one serves to distribute materials evenly? (A) A. Stone spreader B. Stone lifter C. Protective plate