In a circuit vent - Study guides, Class notes & Summaries

EPA SECTION 608 CORE (2021-2022 revision) A disposable cylinder should be reduced to what pressure before scrapping? a. 0 psig b. 20 psig c. 50 psig d. 80 psig A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? a. Add R-22 after the repair is complete. b. Retrofit the unit to R-407C. c. Use recovered or recycled R-22 from the same owner. d. Top off the unit with R-410a. A refillable cylinder must not be filled above what ...

When installing a listed central heating furnaces, and the installation instructions requires you to maintain 6" clearance from the supply air plenum to combustibles, the supply air ducts connecting to the plenum should also maintain the 6" clearance for what minimum distance from the plenum? - Answer-3' Masonry chimneys should be built and installed to NFPA code___________ - Answer-211 What is the lower flammability list limit for natural gas? - Answer-5% What is the minimum clearance ...

Gas Tech II Exam Questions and Answers 100% Pass 1) What is the minimum diameter of a pressure gauge needed to perform leak test on gas piping? 3" 2) Amp meter can read what? Conductor magnetic field. 3) What would be the primary voltage of a furnace? 120/1/60. 4) What is the function of an intermittent pilot? Stay on during the main burner operation. 5) What is the millivolts power output on a thermocouple closed circuit test? 10 to 15 millivolts. 6) A pilot with a lazy yellow flame woul...

What is the typical load rating of the branch circuit over-current protection for a residential gas furnace? - Answer-25 Amp What is recommended for a pressurization leak test of fuel gas pipe? - Answer-Compressed air When selecting a replacement indoor blower motor, Which criteria should be included? - Answer-Motor horsepower Induced draft blowers in direct vent condensing furnaces pull combustion air from: - Answer-Outdoors only What is the primary purpose of an off delay timer in ...

What does L1 mean in electrical wiring? - CORRECT ANSWER hot or line voltage What does L2 mean in a 115 volt circuit? - CORRECT ANSWER neutral How far must oil storage be from an electrical panel? - CORRECT ANSWER 3 feet What does the letter "N" mean? - CORRECT ANSWER Neutral What color wire is used for L1? - CORRECT ANSWER Black What color wire is used for L2? - CORRECT ANSWER White What color wire is used for "N"? - CORRECT ANSWER Whit...

Gas Technician G2 License Test Questions and Answers Verified 100% An inline Ammeter is connected Ans- In series with the device being checked As the length of an Electrical run increases, it may be necessary to Ans- Increase the Wire Size Fuses serving motor circuits should be of Ans- Time Delay Type Millivolt wiring should be isolated from Line Voltage Wiring because Ans- The Line Voltage will induce a voltage into the Millivolt Wiring Which tool is used to determine if t...

Oil burner License Study Guide (Massachusetts) Questions and Answers Already Passed What are the 3 funtions of an Oil Burner nozzle? Atomize, Meter, Patter. What are the 2 voltage circuits of a primary control? Line & Low. What is the function of a fuse? Protect circuit. What is the High Limit cut out? Max safe Temp or Pressure setting. What is the High Limit cut in? Cut out minus Differential. What is the "Max" Lockout time for a burner with a 3 GPH Flow Rate? 45 Secon...

PSI National Home Inspector Practice Exam 2024 Questions and Answers with complete solution Which of the following describes partial vapor pressure? A) Water vapor has a tendency to disperse itself equally in the available air. B) Water vapor causes new homes to require house wrap. C) Water vapor is common with forced induction natural gas furnaces. D) Water vapor is an indication of sick house syndrome. - Answer ️️ -A) Water vapor has a tendency to disperse itself equally in the avai...

NHIE EXAM 100 QUESTIONS AND ANSWERS ALL CORRECT 2024 NEWEST VERSION Which of the following is NOT a component of wood stairs? A. riser B. header C. stringer D. tread - Answer- B When inspecting the structural system, the inspector is required to A. inspect only the visible components in the attic and crawl space. B. specify method of structural repairs to the system. C. report all structural deficiencies observed. D. determine the cause and origin of the damage. - Answer- C ...

G2 Questions and Answers with Verified Solutions What is the min. diameter for a leak test gauge? 3" Amp meter can read? Conductor magnetic field. What would the primary voltage to the furnace be? 120/1/60 What is the function of the intermittent pilot? Stays on during the main burner operation. What is the millivolt power output of a closed circuit thermocouple? 10 - 15 mv dc A pilot with a lazy yellow flame indicates? Orifice is too large. For flame rectification the most important part...