Question 128Motor Plants - QMED70% to pass
The pressuretrol which is installed on an auxiliary boiler senses steam pressure changes and _______________.
AI Explanation
The correct answer is D) automatically regulates the quantity of oil and air flow to the burner.
The pressuretrols installed on auxiliary boilers sense changes in steam pressure and automatically adjust the oil and air flow to the burner. This helps maintain the proper combustion conditions and steam pressure within the boiler. The pressuretrols act as a safety device to prevent dangerous pressure fluctuations.
The other options are incorrect because: A) the feedwater control handles that task, B) the water level controls monitor the high water level, and C) the fusible plug secures the fire if the water level gets too low, not the pressuretrols.
Related Questions
#126 Babbitt is a metal alloy commonly used for lining _______________.#127 When checking a water-lubricated stern tube bearing while underway, what should be checked for? #129 The primary function of a flame safeguard system, as used on an automatically fired auxiliary boiler, is to prevent _______________.#130 Constant capacity, pressure atomizing, fuel burners designed to meet a wide variation in steaming loads on an auxiliary boiler, are _______________.#131 The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing work. This is known as_______________.