【Learn Ethylene Together】Five questions per day to easily learn about ethylene 46

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【Learn Ethylene Together】Five questions per day to easily learn about ethylene 46: 1. Reasons for the increase in pressure after the first stage of the turbine include an increase in the pressure of the intermediate-pressure steam, fluctuations in the exhaust pressure of the turbine, and scaling in the flow channels of the rotor partitions. （）3. Common types of seals used in turbines include labyrinth seals, floating ring seals, mechanical seals, as well as gas-filled and vacuum seals. （）4. The main technical parameters of a safety valve include pressure parameters, dimensional parameters, and discharge capacity. ( )5. The main sources of noise are domestic noise, traffic noise, and industrial noise. （） 1. Reasons for the increase in pressure after the first stage of the turbine include an increase in the pressure of the intermediate-pressure steam, fluctuations in the exhaust pressure of the turbine, and scaling in the flow channels of the rotor diaphragms. (√) 3. Common types of seals used in turbines include labyrinth seals, floating ring seals, mechanical seals, as well as gas-filled and vacuum seals. (√) 4. The main technical parameters of a safety valve include pressure parameters, dimensional parameters, and discharge capacity. (√) 5. The main sources of noise are domestic noise, traffic noise, and industrial noise. (√)