NYC LIC41 Exam 2 Questions with Verified Solutions Graded A+

NYC LIC41 Exam 2 Questions with Verified Solutions Graded A+ Conduit protecting gas piping installed underneath a building shall extend not less than __________ beyond the point where the pipe emerges from the floor. - Answers 2 Galvanizing shall be considered adequate protection for __________ piping. - Answers Exposed exterior The test pressure for gas distribution pressures up to ½ psi is __________ psig for __________ minutes. - Answers 3; 30 The testing pressure for gas distribution pressures over ½ psig through 5 psig is __________ psig for __________ minutes. - Answers 50; 30 The testing pressure for gas distribution pressures over 5 psig through 15 psig is __________ psig for __________ hour(s). - Answers 100; 1 The testing pressure for gas distribution pressures over 15 psig is __________ times the maximum operating pressure but not less than __________ psig for ___________ hours - Answers 2... 100... 1 For gas distribution pressures requiring test pressures over 125 psig, the test pressure shall not exceed a value that produces a hoop stress greater than __________ % of the minimum yield strength. - Answers 50 Gas meter piping shall be pressure tested as per the __________. - Answers Utility Where a single meter is used to supply gas to more than one building/tenant, a separate __________ shall be provided for each building/tenant. - Answers Shutoff valve Coated and wrapped gas piping shall be tested with no less than __________ psig - Answers 90 Fresh water may be used as a testing medium for gas piping when testing at pressures over __________ psig. - Answers 100 All nonmercury gauges measuring pressures in the magnitude of 3 psig shall have faces not smaller than __________ inches diameter. - Answers 2 1/4 To protect an analog gauge from excessive test pressures, a tire gage shall be used to test the magnitude of pressure from the __________ valve. - Answers American, schrader, snifter auxiliary drain pan shall have a minimum depth of __________ inches. - Answers 1-1/2 Purging operations introducing fuel gas shall be stopped when __________ percent fuel gas by volume is detected within the pipe. - Answers 90 Leaks detected during a gas test shall be located with __________. - Answers A gas detector; noncorrosive leak detection fluid When 8" gas piping requires purging, it shall be for a length greater than __________ feet. - Answers none of the above... 8" or larger gas piping requiring purging shall require purging at any length