Prv - Study guides, Class notes & Summaries

A-35 SUPERVISION OF AIR COMPRESSORS (CITYWIDE) EXAM 2024 An air compressor system is primarily used for? - correct answer Storing and making use of pressurized air When air is pressurized by an air compressor it? - correct answer Becomes heated The most commonly used air compressors is? - correct answer Reciprocating air compressor Unloading Valve - correct answer Allows air to escape from compression chamber, when there is a strain on the electrical motor. Strain usually occurs o...

API 510 says that widely scattered pitting can be ignored provided that the: remaining thickness is not less than 1/2 the minimum required thickness. Rupture disks are commonly used to protect a pressure relief valve from corrosive products. When repairs and alterations are being conducted, which individual or organization is responsible Repair Organization Which code provides requirements for Hot Tapping? API 2201 Catalytic reformer vessels may have creep damage if the operating temperatu...

Pivot point moving forward is on Trailing edge? - (F) PP on leading edge Who responds to LAR?(Limited access road) - WSDOT and WSP Oil Pressure must be between? - 20-60psi Wear bars on tire are made of? - Rubber PRV must be exercised how many times? Prime pump for how long? - Pumper Weekly Check (p10 8-3) Run PRV control valve 3x and prime pump for 15-30 second

Under what conditions would High Pressure (HP) air be used? (FCOM 2; 2.40.1) Correct Answer 1. Descent 2. Other low power setting operations Under what conditions would intermediate pressure (IP) air be used? (FCOM 2; 2.40.1) Correct Answer High power setting operations The engine bleed air switches control which valves by system logic, when bleed air pressure is available? (FCOM 2; 2.40.1; 2.10.25) Correct Answer 1. Engine bleed air valve 2. PRV 3. HP bleed valve Describe the gener...

How many apprentices can a journeyman directly supervise? - Answer-2 When performing any service work on a customers heating system the licensee must notify the homeowner of? - Answer-Efficiency and code violations Can a licensed journeyman perform a cleaning on wood/oil combination unit without direct supervision? - Answer-No When installing a furnace, direct wired water heater or boiler what must be done prior to placing it in service? - Answer-Everything complies with NFPA 31 code When...

PART B - BOILER SAFETY DEVICES Exam Questions With Verified Answers Pressure relief valve is a device designed to actuate on: a. outlet static pressure b. inlet static pressure c. inlet dynamic pressure d. outlet dynamic pressure - answerb As per ASME PTC-25, a PRV that may be actuated by pressure or temperature at valve inlet is a: a. safety relief valve b. safety valve c. temperature & pressure relief valve d. pressure relief valve - answerc A Relief Valve is a PRV characterized by...

NYC High Pressure Boiler License The minimum blowdown for a spring loaded safety valve shall be of what percent of set pressure? - 10% How is the main steam pressure gages tested? - With an inspectors gage Who is in charge of the code for any plumbing installations? - The nyc plumbing code When will anchorage or guides be inspected? - Annually How many brass washout plugs does a miniature boiler have? - 3 brass washout plugs, 1" in size How often is HP piping expansion joint...

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API 510 says that widely scattered pitting can be ignored provided that the: - remaining thickness is not less than 1/2 the minimum required thickness. Rupture disks are commonly used - to protect a pressure relief valve from corrosive products. When repairs and alterations are being conducted, which individual or organization is responsible - Repair Organization Which code provides requirements for Hot Tapping? - API 2201 Catalytic reformer vessels may have creep damage if the opera...

hat must you do if you notice code violations in a homeowners house? - Answer-Notify them and recommend ways to address them What must be done when performing an annual tune-up on a heating system? - Answer-A combustion efficiency test and a copy must be posted on site Whenever a furnace, direct fired hot water heater, or boiler is installed the total installation must be brought into compliance with what requirements BEFORE appliance can be fired? - Answer-NFPA 31 When an emergency arises...