HCBBS Forum (English)
Submit Chemical Projects / Find Solutions
Amplify Your Requirements on a Broader Chemical Platform *Engineering · Technology · Equipment · Solutions*
Submit Request

One Question per Day on Refining Knowledge (Technology) 110108

2011-01-08View Original

Thread Content

We welcome everyone to actively participate in the learning and discussion of professional basic knowledge in the refining technology exchange area! In accordance with the forum’s uniform requirements, the maximum score for this activity is 5 Wealth points, and it is prohibited to assign charm scores. At the same time, friendship requests and repeated ratings are declined. Be careful when posting; editing is ineffective! Those who have different opinions on the provided answer keys can post discussions the next day; those who provide solutions or their own opinions regarding the answer key for the daily question will receive appropriate rewards! The focus is on participation, and there are prizes for participating! ) 1. The measures to be taken when the furnace temperature is excessively high are (  ). A. Adjust the distribution of the burners in use to be even. B. Ensure that the flow rate of the heating medium through the furnace tubes is the same. C. Adjust the oil nozzles. D. Reduce the load on the heating furnace. 2. If it is found that the liquid level inside the tank does not match the reading on the glass level gauge, then this indicates (  ). A. The glass plate level gauge is functioning properly. B. The glass plate level gauge is not working correctly. C. It is inappropriate to use a glass plate level gauge at this location. D. Operations inside the tank are normal. 3. What are the phenomena that occur when steam is blown at the bottom of the tower and water is carried along with it? (  ) A. Rise in bottom temperature of the tower ; The liquid level at the bottom of the tower rises ; B. The bottom temperature of the tower decreases ; The liquid level at the bottom of the tower decreases; C, and the temperature at the bottom of the tower rises ; Decrease in the liquid level at the bottom of the tower D, decrease in the temperature at the bottom of the tower ; The liquid level at the bottom of the tower rises by 4. When the packing in the distillation tower catches fire severely (  ). A. Sintered filler B. Drop in tower top temperature C. Drop in tower bottom temperature D. Explosion inside the tower 5. If hot residue oil is introduced into a tank without first removing the water present at the bottom of the tank, the water boiling violently when it comes into contact with the hot residue oil can easily cause damage to the tank (  ). A. Over-temperature B. Over-pressure C. Rapid condensation leading to frost cracking D. Difficulty in oil supply. Please hide the reply; the correct answers can be seen in the reply: D B B A B
Reply #22011-01-08
This post was last edited by PiaoyuDeWuTongXia on 2011-1-8 at 17:47. 1. c 2. b 3. b 4. a 5. b
Reply #32011-01-08
This post was last edited by PiaoyuDeWuTongXia on January 8, 2011, at 17:48. C B B A B My answers
Reply #42011-01-08
This post was last edited by “Under the Rainy Parasol Tree” on January 8, 2011, at 17:49. The answers are: 1. C, 2. B, 3. C, 4. C, 5. B

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.