Question 474Steam Plants - Assistant Engineer70% 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 air. The other options are incorrect because they do not accurately describe how these types of burners function to match steam demand.
Related Questions
#472 The pressuretrol which is installed on an auxiliary boiler senses steam pressure changes and _______________.#473 The primary function of a flame safeguard system, as used on an automatically fired auxiliary boiler, is to prevent _______________.#475 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 _______________.#476 One factor for determining the minimum feed water inlet temperature to a boiler economizer is the _______________.#477 If there is a sudden drop in the outlet temperature of an uncontrolled superheater, you should _______________.