Question 188Motor Plants - 1st Asst/Chief70% to pass
Burner ignition failure in an automatically fired auxiliary boiler would be caused by _______________.
AI Explanation
The correct answer is A) a burned out solenoid in the oil supply valve.
If the solenoid in the oil supply valve fails, the automatic burner ignition will be unable to light the burner, resulting in a burner ignition failure. This is because the solenoid controls the flow of oil to the burner, and without a functioning solenoid, the burner will not receive the necessary fuel to ignite.
The other answer choices are incorrect because they do not directly relate to the root cause of a burner ignition failure in an automatically fired auxiliary boiler. High temperature excess air (B), incorrectly setting the hotwell dump valve (C), and an incorrectly positioned burner snubber relay (D) would not directly cause the burner ignition to fail.
Related Questions
#186 A safety valve on an auxiliary boiler simmers constantly and cannot be stopped by several quick blow-offs using the hand relieving gear. The problem may be_______________.#187 A feed pump for an auxiliary boiler might lose suction if the _______________.#189 With which of the following types of diesel engine arrangements is a waste heat boiler most likely to produce the maximum steam pressure, temperature, and flow conditions? #190 Casing drains may be required on a waste heat boiler gas passage side to_______________.#191 An exhaust gas bypass is installed on a waste heat boiler in order to_______________.