Esco Gas Furnace Exam Questions and Answers 100% Pass

Esco Gas Furnace Exam Questions and Answers 100% Pass Burning one cubic foot of natural gas will produce approximately _____ BTU's - 900-1,100 BTU The Natural Fuel Gas code classifies a vent system for a condensing furnace as : - Category IV what type of draft is used to move flue gas through the heat exchanger and into the venting system in modern gas-fired furnaces? - Mechanical A customer complains that a 2-year-old, direct, hot surface ignition furnace will not light. The inducer motor runs, the pressure switch closes, and the igniter begins to glow, but there is no ignition. The furnace locks out while attempting to light. After resetting the furnace, 17 VAC is measured at the 2 100% Pass Guarantee Katelyn Whitman, All Rights gas valve and the technician correctly concludes: - The Electonic board is faulty The efficiency rating of gas-burning appliance is determined using: - Annual Fuel Utilization Efficiency (AFUE) when the burners of a furnace are ignited the blower motor operation is delayed to: - Allow heat exchanger to warm up Typical condensing furnaces have an AFUE rating of at least - 90% A gas furnace has an integrated furnace control (IFC). How is the fan cycled during heating? - Heat Relay What reading should a good thermocouple produce on a DC meter - 30 millivolts A furnace nameplate specifies a temperature rise of 40 to 70 degrees. Temperature measurements indicate a rise of 80 degrees. The most appropriate action is to: - Increase the fan speed The most common burner used in induced draft furnace is: - In-shot 3 100% Pass Guarantee Katelyn Whitman, All Rights You are installing 1/2 and 3/4 black iron pipe to a natural gas furnace. When threading, what is the approximate number of threads to cut? - 7- 10 When exposed to low concentrations of carbon monoxide, healthy adults may exhibit: - Headaches and Nausea If voltage is applied across two speed terminals on a fan motor, the motor will - Short-out/Burn-out to react to a change in temperature, the fan/limit switch in a standing pilot furnace uses a helical shaft made of - Bi-metal How much combustion air is required to burn