Question 27General Subjects - QMED
70% to passWhich of the following system applications would require the use of a siphon tube (pigtail) to prevent gauge damage?
AHydraulic oil pressure
BHeavy fuel oil
CCompressed air pressure
DSteam pressure
AI Explanation
The correct answer is D) Steam pressure. The use of a siphon tube (pigtail) is required for steam pressure gauge systems to prevent gauge damage. Steam pressure can fluctuate rapidly, and the siphon tube helps dampen these pressure variations, protecting the sensitive gauge mechanism. In contrast, hydraulic oil pressure (A), heavy fuel oil (B), and compressed air pressure (C) systems do not typically require siphon tubes, as these fluids and gases do not exhibit the same rapid pressure variations as steam.
Related Questions
Q@q.QuestionNumber:Energy imparted to the hydraulic fluid in an operating hydraulic system is store... Q@q.QuestionNumber:The hydraulic system of a deck winch has been drained, flushed, and refilled wit... Q@q.QuestionNumber:In the hydraulic anchor windlass system illustrated, the main pressure relief va... Q@q.QuestionNumber:Of the many impurities commonly found in marine lubricating oil, which of the fo... Q@q.QuestionNumber:The hydraulic pump which would be mounted on the unit shown in the illustration,...
Ready to test your knowledge?
Take a General Subjects - QMED Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App