Oil Furnace Heating Practice Tests Exam Questions and Answers 100% Solved

A ______ carbon dioxide content is usually caused by insufficient draft or an overfired burner low high - ANSWER-high A _______ stack thermometer is generally used to measure the flue gas temperature in oil heating system: 200/2000°F 100/1000°F 200/1000°F 100/2000°F - ANSWER-200/1000°F Delayed ignition is mainly traced to a problem with which of the following: Stoker Electrodes Burner Nozzle Oil pump - ANSWER-Electrodes The advantage of the _______ of oil spray pattern is more stable operating under the same conditions and at the same flow rate. hollow cone solid cone - ANSWER-hollow cone Rotary burners operate with high-pressure gravity False True - ANSWER-False Which of the following oil burner has relatively high operating cost vaporizing oil burner pot-type oil burner Gun type oil burner - ANSWER-Gun type oil burner If the oil tank is located above the burner, and the oil is supplied by gravity flow, the vacuum gauge must show a reading of _______: zero positive value negative value - ANSWER-zero In two stage oil pump the _______ stage draws completely air-free oil: both first and second second first - ANSWER-second The spray angle of oil from burner nozzle will generally range from ______: 60° to 90°. 30° to 90° 45° to 90° 70° to 90° - ANSWER-30° to 90° Fuel pump is located on the left side of the oil burner