Question 181Motor 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 on auxiliary boilers are designed to cycle on and off in response to changes in steam demand, rather than automatically adjusting the air or fuel supply. This allows the burners to efficiently meet a wide variation in steaming loads without wasting fuel or overproducing steam. The other options are incorrect because they do not accurately describe how these types of burners are designed to operate.
Related Questions
#179 Control of the fuel oil metering valve in an automatically fired auxiliary boiler is accomplished by a _______________.#180 The solenoid valves in the fuel oil supply line to an automatically fired auxiliary boiler, are automatically closed by _______________.#182 The pressuretrol which is installed on an auxiliary boiler senses steam pressure changes and _______________.#183 The primary function of a flame safeguard system, as used on an automatically fired auxiliary boiler, is to prevent_______________.#184 In the water level electrode assembly, shown in the illustration, the feed pump should restart when the level of the water reaches the position indicated by arrow '_____ '. Illustration MO-0047