Question 273General Subjects - 1st Asst/Chief70% to pass
A periodic hydrostatic test is being performed on a main steam line between the boiler drum and the throttle valve which has a maximum allowable working pressure of 960 psig. In accordance with 46 CFR regulations pertaining to periodic tests and inspections as related to piping systems, what is the required hydrostatic test pressure for this procedure?
AI Explanation
The correct answer is B) 1200 psig.
According to 46 CFR 56.97-3, the required hydrostatic test pressure for a piping system with a maximum allowable working pressure of 960 psig is 1.25 times the maximum allowable working pressure, which equals 1200 psig. This is the minimum test pressure required to ensure the integrity of the piping system.
The other options are incorrect because:
A) 1056 psig is less than the required 1.25 times the maximum allowable working pressure.
C) 1440 psig is more than the required test pressure.
D) 1920 psig is significantly higher than the required test pressure.
Related Questions
#271 In setting up a managerial control system, the standard must be established, and a means of measuring performance against that standard must be established. What statement is true concerning the comparison between performance and the standard? #272 What type of managerial controls measure actions or activities that have already occurred and implement corrective action if needed? #274 According to 46 CFR regulations pertaining to periodic tests and inspections as related to piping systems, under what circumstances is an internal inspection of a non-metallic expansion joint performed by the marine inspector? #275 According to 46 CFR regulations pertaining to periodic tests and inspections as related to fired thermal fluid heaters, regarding hydrostatic tests, what statement is true? #276 The design of a job has a great impact on whether or not the job itself is motivating. One of the characteristics of a job design is skill variety, which is the extent to which a job requires a worker to use a broad range of skills and talents to perform the job successfully. What is true about skill variety?