High Pressure Steam Exam Questions With Verified Solutions

HIGH PRESSURE STEAM EXAM QUESTIONS WITH VERIFIED SOLUTIONS 1 The maximum blowdown for a safety valve on a forced flow steam generator or high temperature water boiler shall be of what percent of the set pressure? - ANS 10%. HP Code: 14-9.12 3 Who oversees the code for any plumbing installations? - ANS The NYC Plumbing Code NYC Mech: 1002.1 4 When will anchorage or guides be inspected? - ANS Annually. NYC Mech: 1210.3.1.2 5 How many brass washout plugs does a miniature boiler have? - ANS Not less than 3 Brass Washout Plugs 1 inches in size. HP Code 14-11.5 6 How often are high pressure piping expansion joints inspected? - ANS Weekly RCNY: 20-02 a.2.i (HP steam piping). NYC Mech: 1210.3.1 (hydronics - monthly) 7 How long should a Hydronic System be pressure tested for? - ANS 2 hours at no less than 100 PSIG. NYC Mech: 1208.1 8 How is a gauge protected from excessive pressure? - ANS Shut off Cock RCNY: 20-03 c,7 9 Who is authorized in witnessing a test on a gas piping system? - ANS Plumbing Inspector, Architect, Licensed PE, Master Plumber, or Agency by the D.O.B RCNY 20-01 a,1,2 10 How should a remote disconnect be labeled? - ANS Remote control for burner. NYC Mech: 1006.8.1 11 When is a fusible plug not needed to be installed on a boiler? - ANS Over 200 PSIG. HP Code: 14-10.17, b 12 When shall a power boiler with a MAWP over 400 be tested? - ANS Pressure tested annually ( safety valve). HP Code: 14-9.7, a,2 13 What shall a Design plan of a boiler and application contain but not limited to? - ANS Size + Location, Operating Pressure + Temperature of the Pressure vessel, and Type + Specification of Pressure Relief.