Basic Knowledge of Ammonia Synthesis – Daily Question 132

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True or False: 1. The outlet valve must be closed before starting a reciprocating pump. ( )2. The shaft power of a centrifugal pump refers to the energy obtained by the pump shaft from the prime mover per unit of time. () We hope that all fellow learners will participate actively: handshake. The purpose of this activity is to review the knowledge we have already learned, and to improve and strengthen everyone’s fundamental theoretical knowledge through answering questions, thereby reinforcing what we already know and helping us recall what we have forgotten. The top 50 answerers will definitely receive a reward. Please reply with the answer hidden; otherwise it will be invalid. Hidden method: http://bbs.hcbbs.com/thread-492556-1-1.html Please do not edit the ‘L’ after replying. Answer key: 1. ×. Correct answer: The reciprocating pump must have its outlet valve opened before it can be started. 2、√.