Question 13Steam Plants - 1st Asst/Chief70% to pass
Constant capacity, pressure atomizing, fuel burners designed to meet a wide variation in steaming loads on an auxiliary boiler, are _______________.
AI Explanation
The correct answer is D) cycled on and off in response to steam demand.
Constant capacity, pressure atomizing fuel burners are designed to cycle on and off in response to changes in the steam demand on the auxiliary boiler. This allows the burners to meet a wide variation in steaming loads without the need for complex variable capacity atomizers. The burners are simply turned on and off as needed to maintain the desired steam pressure and output, rather than being automatically supplied with more fuel or warmer air on demand.
The other options are incorrect because they do not accurately describe how these types of fuel burners function. They do not automatically adjust the fuel or air supply, but rather cycle the burners themselves to meet the changing steam load requirements.
Related Questions
#11 The pressuretrol which is installed on an auxiliary boiler senses steam pressure changes and _______________.#12 The primary function of a flame safeguard system, as used on an automatically fired auxiliary boiler, is to prevent _______________.#14 During unsafe firing conditions in a large automatic auxiliary boiler, various control actuators are interlocked with the burner circuit to prevent start-up, in addition to safety shutdown. These controls are referred to as _______________.#15 High pressure steam drains are normally discharged to the _______________.#16 Which of the listed systems would be a potential source for the high pressure drain system?