Steam traps are essential components of any steam cycle. When malfunctioning, they will reduce cycle's energy efficiency and may cause other problems in the condensate drain system. What simple, definite, technique may one use to identify a malfunctioning trap?
• Purpose of a steam trap – what it should pass (condensate/air) and what it should hold (live steam) • Difference between occasional/normal noises and a definite test that gives clear evidence of failure • Which method provides an objective, repeatable indication rather than just a subjective impression
• Look at each option and ask: does this method give a clear, unmistakable indication that the trap is leaking steam or stuck shut, or is it just a rough clue? • Which choice relies least on personal judgment (hearing/interpretation) and most on a measurable, physical condition? • For a written exam, they usually want the method that can be documented and compared over time. Which option fits that pattern best?
• Identify which answer uses a measuring instrument rather than just senses like hearing or sight. • Ask which technique would work even in a noisy machinery space where sounds are hard to distinguish. • Consider which method could be used safely without venting live steam into the space.
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