A salinity indicator system such as that used to measure the salt content of potable water systems and boiler feed and condensate systems uses what technology?
• Relationship between salt content and electrical properties of water • Typical methods used on ships to monitor boiler feedwater and condensate quality • Difference between measuring pH, density, conductivity, and optical properties
• Which property of water changes most predictably with small amounts of dissolved salt and is easy to detect electronically in a pipeline? • In boiler feed and condensate systems, what do engineers actually monitor continuously to detect salt leakage from seawater? • Which option describes something that can be built into a simple in‑line probe with two electrodes or contacts?
• Identify which choice is linked to electrodes or cells using current/voltage measurement. • Eliminate any options that mainly relate to acidity/alkalinity (pH) rather than salt concentration. • Consider which property is most practical for automatic alarms and remote indication in machinery spaces.
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