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【Daily Question】July 26: The main fan of the catalytic cracking unit

2015-07-26View Original

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One daily activity question (single-choice question): The main fans in catalytic cracking units are generally of centrifugal or axial flow type; their significant advantage over positive displacement compressors is (  ). A. Low air flow loss B. Wide pressure range C. No pulsation in exhaust D. High adaptability. Answer: C, no pulsation in exhaust. Please participate actively for prizes. +5 points for correct answers, +2 points for participation. One time per person only. Close this topic in two days.
Reply #22015-07-26
This revised version D has strong adaptability
Reply #32015-07-26
The main fans in catalytic cracking units are generally of centrifugal and axial flow types, and their significant advantage over positive displacement compressors is (C). A. Low airflow loss B. Wide pressure range C. Pulsation-free exhaust D. High adaptability
Reply #42015-07-26
The main fans in catalytic cracking units are generally of centrifugal and axial flow types, and their significant advantage over positive displacement compressors is ( C ). A. Low airflow loss B. Wide pressure range C. Pulsation-free exhaust D. High adaptability
Reply #52015-07-26
The main fans in catalytic cracking units are generally of centrifugal and axial flow types, and their significant advantage over positive displacement compressors is ( C ). A. Low airflow loss B. Wide pressure range C. Pulsation-free exhaust D. High adaptability
Reply #62015-07-26
The main fans in catalytic cracking units are generally of centrifugal or axial flow type, and their significant advantage over positive displacement compressors is (  ). C. No pulsation in exhaust gas
Reply #72015-07-26
Multiple-choice question: Choose C without hesitation. No explanation needed – it’s the intuition of a chemical engineering technician. :lol
Reply #82015-07-26
The main fans in catalytic cracking units are generally of centrifugal and axial flow types, and their significant advantage over positive displacement compressors is ( C ). A. Low airflow loss B. Wide pressure range C. Pulsation-free exhaust D. High adaptability

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