【Test Your Knowledge】Basic Chemical Engineering Knowledge (36)

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For the convenience of others, please write down the answers directly; do not paste the original questions, otherwise no marks will be given. Thank you for your cooperation! 1. Total quality management is the core aspect of enterprise management. ( ) 2. Filter-type gas masks can be used in any environment where the oxygen concentration is above 18% (by volume). ( ) 3. When someone is found to be electrocuted, the police should be called first. ( ) 4. The saturated vapor pressure is independent of the amount of liquid and is determined by the properties of the liquid and its temperature. ( ) 5. When diluting concentrated H2SO4, water must be added to the acid slowly. （ ） 6. The ten-step procedure of “cleaning, lubricating, tightening, adjusting, and anti-corrosion” should be carefully followed for equipment. ( ) 7. The mass percentage concentration is the percentage of the mass of the solution to the mass of the solute. （ ） 8. The greater the density of the liquid being transported, the lower the pump’s head pressure. （ ） 9. The fundamental equations of statics apply only to the same fluid that is in communication with each other. （） 10. In a distillation column, from top to bottom, the concentration of the volatile components in the vapor gradually decreases. ( ) Answer key: 1 correct, 2 wrong, 3 wrong, 4 correct, 5 wrong, 6 correct, 7 wrong, 8 wrong, 9 correct, 10 correct. Last edited by zhangyong6404 on 2009-4-19 12:43.]