判断高级工（Senior Engineer）.docVIP

判断高级工（Senior Engineer） Senior Engineer A 1. () in the polymerization process, when the temperature rises to 40 degrees, PP is generated. Answer: B. The heat transfer of 2. () polymerizer mainly depends on conduction and convection. Answer: B. 3. () generally, regardless of the pipe or shell side, when the fluid is heated, the flow should flow from bottom to top. When the fluid is cooled, the flow should be from top to bottom. Answer: X The reaction heat of the 4. () polymerizer is cooled by jacket water and internal cold water. Answer: B. 5. () in the polymerization, H2 can participate in the reaction of 100%. Answer: X 6. () unit consumption is the ratio of output to quantity of feed minus recovery. Answer: X 7. () polymerization spray material, in order to spray more material, the higher the pressure. Answer: X 8. () for the first time, propylene tanks can be replaced by gas-phase propylene. Answer: X (9.) safety valve and seal said pressure test, constant pressure condition, you can use. Answer: B. The vacuum pump used in the 10. () flash position is a water ring vacuum pump. Answer: B. 11. () flash drum mixing action is to prevent the polymerization spray hot material to powder cooling. Answer: X 12. () enter the container operation, the valve on the container as long as it can be closed, do not hit the blind board can enter. Answer: X The motor power used in the 13. () polymerizer is 55 kw. Answer: X (14.) in the polypropylene powder ash composition, the influence of the highest activation agent. Answer: B. 15. () when activated, the activator system must be replaced with refined nitrogen. Answer: B. (16.) vacuum pump lubrication bearing box, should add ZL-3 grease. Answer: B. 17. () under the same conditions, increasing the number of vacuum displacement of the flash kettle can reduce the chlorine content in PP products. Answer: B. 18. () the adsorbed substance is called adsorbent. Answer: X 19. () product quality is the quality, life, safety, economy and other