Question 27General Subjects - QMED70% to pass
Which of the following system applications would require the use of a siphon tube (pigtail) to prevent gauge damage?
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
#25 Which of the following direct reading gauges would most likely be used in the application of a pump suction pressure gauge? #26 Which of the following direct reading pressure gauges is capable of measuring two pressures and displaying the difference between the two? #28 When reading a pressure that fluctuates severely on a direct reading pressure gauge, what should be done? #29 If a standard bourdon tube type pressure gauge that is designed to measure and display gauge pressure reads 43.8 psig, what would be the equivalent absolute pressure? #30 When determining the level of a potable water hydro-pneumatic header tank fitted with a tubular sight glass, what must be taken into consideration?