G2 Gas Technician BUNDLED exam 2023 with 100% correct answers

A room heater installed in either a sleeping area or public area shall be: A. direct vent only B. equipped with a regulator C. equipped with a fan D. equipped with an on / off switch on the wall - correct answer -B What type of vent must be used when the vent of a wall furnace will be conceal...

What is the minimum diameter of a pressure gauge needed to perform leak test on gas piping? A. 2" B. 2 - 3/4" C. 3" D. 3 - 1/2" - correct answer -c. 3" Amp meter can read what? A. Pressure drop. B. Conductor magnetic field. C. Load in parallel wires. D. Direct power across loads. ...

(10) What is a Servo? - correct answer -A mechanism set in motion by other mechanisms (10) What is Setpoint? - correct answer -The desired outlet perssure (10) Which regulator is more accurate; pilot operated or direct operated? - correct answer -Pilot operated (10) In which applications ar...

The ventor motor on a power vent water heater fails, this component prevents operation? a)Pressure relief valve b)ECO switch c)High limit switch d)Pressure Switch - correct answer -Pressure Switch What is the ignition temperature for natural gas? a)920 degrees Fahrenheit b)1000 degrees Fahr...

List two sources of regulations and standards of practice that influence decisions concerning air flow in residential construction. - correct answer -F280 and F326 Name three methods of heat transfer. - correct answer -Conduction, Convection and Radiant What is enthalpy? - correct answer -All ...

Why are air cleaners installed ahead of heating or cooling coils and air conditioners? - correct answer -To protect the equipment from dust and increase efficiency What are two ways in which a mechanical filter could restrict air flow? - correct answer -Dirty Air Filter and Incorrect Air Filter ...

What pressure does atmospheric pressure exert on the earth at sea level? - correct answer -14.74 psia What two things mean you must bring in combustion air. - correct answer -1. Total BTU of appliance if greater than 400000 you must bring in combustion air. 2. If house is tight construction you ...

What type of vent is used on a wall furnace? - correct answer -BW Venting What temperature does a low-intensity infrared heater fire at? where are they used? - correct answer -1200 F and are used in factories and commercial buildings How does a low intensity infrared heater work? - correct ans...

What prevents the water in a hydronic heating system from boiling into steam when the system is operating above the atmospheric temperature? - correct answer -Pressurization of the system List the four subsystems of a hydronic space heating system? - correct answer -Heat Source, Circulation syste...

If the venting on a high efficiency furnace runs through unheated spaces, what must be done? - correct answer -Insulate piping to prevent Condensation and freezing What is condensate drain piping used for? - correct answer -Dispose Liquid waste Once the furnace is installed, what are the gas t...

What is a temperature control made of in a water heater? Which one is the sensing element? - correct answer -Rod and tube. Rod is steel and tube is copper. Copper is the sensing element. Temperature settings on a water heater? - correct answer -Hot - 160 F Normal - 130 F Warm - 120 F What do...

What are the factors governing a conversion? - correct answer Availability of gas, efficiency if converted, access to combustible air, satisfactory ductwork, can a chimney liner be installed, clearances from combustibles, manufactures recommendations, if a water heater is also being installed (commo...

What are the three functions of a regulator? - correct answer -1. To reduce and maintain constant downstream pressure 2. To allow pressure adjustments to the appliance 3. To provide a smoother even flow What are the three operating forces of a gas regulator? - correct answer -1. Measuring eleme...

What are the two main purposes of gas pressure regulators? - correct answerTo reduce and maintain the downstream pressure and to provide pressure to appliances or burners What are the four categories of a gas pressure regulators? - correct answerFirst stage/Service Regulator, Line Pressure Regula...