【Daily Question】2016 1.25 Multiple-choice question: Before using steam, it is necessary to adhere to ( ); the introduction of steam should be done slowly.
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【Daily Question】2016 1.25 Multiple-choice question: Before using steam, it is necessary to adhere to ( ), introduce the steam slowly following the principle of starting with a low flow rate and then increasing it, in order to strictly prevent water hammer. Answer: B A. Introduce steam first and then drain the condensate; B. Drain the condensate first and then introduce steam; C. Purge; D. Replace with nitrogen
Before using steam, it is necessary to adhere to (B); the steam should be introduced slowly, starting with a low flow rate and increasing it gradually, to strictly prevent water hammer.