G2 gas technician Study guides, Class notes & Summaries

G2 Gas Technician Module 10 Questions and Answers Already Passed The working pressure differential between the gas meter outlet and the appliance regulator inlet at furthest appliance from meter Define pressure drop 0.5" w.c. What is the Max pressure drop >7" w.c. NG 1" w.c. What is the Max pressure drop 7" - 14" w.c. NG After piping system is installed and before any appliance is connected to it. When do you do a high pressure test? 1. Isolate the piping system 2. Cap or plug ope...

G2 Gas Technician Module 12 Exam Questions and answers with 100% Complete Solutions | verified &updated 2024

G2 Gas Technician Module 15 A Revised Already Passed What are the two main purposes of gas pressure regulators? To reduce and maintain the downstream pressure and to provide pressure to appliances or burners What are the four categories of a gas pressure regulators? First stage/Service Regulator, Line Pressure Regulator, Appliance Regulator What is lock up pressure and how do you check it? The pressure under which downstream pressure will stabilize after burner shuts down, Check it by closing ...

G2 Gas Technician Module 15 B Revised Questions and answers with 100% Complete Solutions | verified &updated 2024

G2 Gas Technician Module 18 Revised with Verified Solutions What is a temperature control made of in a water heater? Which one is the sensing element? Rod and tube. Rod is steel and tube is copper. Copper is the sensing element. Temperature settings on a water heater? Hot - 160 F Normal - 130 F Warm - 120 F What does a unitrol have in it? Temperature and pressure relief valve, E.C.O., Main Gas valves, Pilot Gas Valve and a gas regulator What temp does a temperature and pressure relief valve ...

What does an Aquastat do? - Its an automatic operating switch (normally open). Sense water temperature of a boiler and closes when temperature drops. What does a low water cut off do? - Automatic safety control (normally closed). Senses water level in the boiler. If level drops the switch opens and shuts off the gas valve. in series with gas valve.,What does a water flow switch do? - Automatic safety control (normally open). Senses water flow and switch closes What does a Pressure Control ...

G2 Gas Technician Module 12 Questions And Revised Correct Answers PASSED!! In series with gas valve.,What does a water flow switch do? - ANSWER : Automatic safety control (normally open). Senses water flow and switch closes What does a Pressure Control Switch (pressuretrol) do in a steam boiler? - ANSWER : Automatic control that senses high and low steam pressure in a boiler. It closes to start burner on low pressure and opens at high temperature to stop the burner. Controls ...

If the venting on a high efficiency furnace runs through unheated spaces, what must be done? - Insulate piping to prevent Condensation and freezing What is condensate drain piping used for? - Dispose Liquid waste Once the furnace is installed, what are the gas technician's responsibilities to the user? - To instruct the the user in the safe and correct operation of all appliances and equipment - clause 4.3.2 Which furnace type is the most popular? - High boy Up Flow What type of furnace i...

G2 Gas Technician Module 21 Revised Questions with Verified Solutions What type of vent is used on a wall furnace? BW Venting What temperature does a low-intensity infrared heater fire at? where are they used? 1200 F and are used in factories and commercial buildings How does a low intensity infrared heater work? Gas burner fires into mouth of tube and hot flue gases travel through tube. It emits infrared heat which is directed by reflector suspended above the tube. What are high intensity in...