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This post was last edited by kareale88 on 2019-1-14 08:22: bg4.png 【Daily Question】 【Static Equipment Discussion Forum...Question 14】 January 14, 2019 – True/False and multiple-choice questions...A bountiful harvest. Please enter the answers (multiple choice, single choice, single choice) in order. Reward rules: 1 wealth for participation, 3 wealth for each correct answer, up to a maximum of 10 wealth. This topic is valid for two days; no scoring will be given if it exceeds two days by 48 hours. The 2018 Hailuan “Top 10 Outstanding Members” selection campaign has officially begun (Phase 1: Recommend the outstanding members in your eyes). https://bbs.hcbbs.com/thread-2243161-1-1.html There are also 19 rewards available; act now before it’s too late. Comprehensive Collection of Personal Integration Materials — Along with [Coating Materials – Integrated Collection] — Adding More Color to the New Year https://bbs.hcbbs.com/thread-2259051-1-1.html 1. Safety valves can be classified according to their working principle as (). A. Direct-acting safety valve B. Safety valve with power assist device C. Balanced safety valve D. Pilot-operated safety valve 2. The nominal pressure of a safety valve should be ( ) the design pressure of the pressure vessel. A. Equal to B. Not greater than C. Not less than D. Less than 3. The selection of a safety valve should be based on factors such as operating pressure, operating temperature, properties of the medium (such as viscosity, cleanliness, toxicity, corrosiveness), and whether the container is subject to vibrations. ( ) A. Correct B. Incorrect Answer: 1. A B C D 2. C 3. A
1. ABCD 2. D (I’m a bit confused; “less than or equal to” is the same as “not greater than”, right?:L) 3. A
The nominal pressure of the safety valve must be ≥ the design pressure, while the set pressure can be ≤ the design pressure.