One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 294
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When maintaining equipment, containers, and pipelines that hold toxic, flammable, or corrosive materials, thorough ( ) cleaning must be carried out at specified intervals to ensure that there are no residues or residual gases inside; sampling for analysis must meet the requirements of safety technical standards. A. Steam purging B. Hot water boiling C. Acid-base neutralization D. Nitrogen purging Answer: ABCD
When maintaining equipment, containers, and pipelines that hold toxic, flammable, or corrosive materials, it is necessary to carry out thorough (AD) cleaning at specified intervals to ensure that there are no residues or residual gases inside. Sampling for analysis must comply with the requirements of safety technical standards. A. Steam purging D. Nitrogen displacement
When performing maintenance on equipment, containers, and pipelines that hold toxic, flammable, or corrosive materials, it is necessary to use the specified (ABC D) methods to ensure that there are no residues or remaining gases inside; sampling for analysis must also meet the requirements of safety technical standards. A. Steam purging B. Hot water cooking C. Acid-base neutralization D. Nitrogen displacement
When maintaining equipment, containers, and pipelines that hold toxic, flammable, or corrosive materials, it is necessary to carry out thorough cleaning using the specified method (A: steam purging) at regular intervals to ensure that there are no residues or residual gases inside. Sampling for analysis must meet the requirements of safety technical standards. A. Steam purging B. Hot water cooking C. Acid-base neutralization D. Nitrogen displacement
D. Nitrogen displacement – it shouldn’t be a multiple-choice question, right!
Select A, B, C, and D all. ------
When maintaining equipment, containers, and pipelines that hold toxic, flammable, or corrosive materials, it is necessary to carry out thorough cleaning using the specified method (B: hot water steaming) at regular intervals, to ensure that there are no residues or residual gases inside. Sampling for analysis must meet the requirements of safety technical standards.
When maintaining equipment, containers, and pipelines that hold toxic, flammable, or corrosive materials, it is necessary to carry out thorough cleaning using the specified (A B C D) methods to ensure that there are no residues or remaining gases inside. Sampling for analysis must meet the requirements of safety technical standards.
The answer should be A, right! ! ! !
Nitrogen, right? Does a high steam temperature cause the material to vaporize and expand, thereby creating a risk of explosion?