Question 199Steam Plants - Assistant Engineer70% to pass
The connections labeled "A" in the illustration, are used to _______________. SG-0025
AI Explanation
The correct answer is A) maintain a vacuum in the shell of the feed water heater.
The connections labeled "A" in the illustration are used to maintain a vacuum in the shell of the feed water heater. This is necessary to improve the efficiency of the heat transfer process, as a vacuum helps to prevent the formation of steam bubbles that could reduce the effectiveness of the heat exchange.
The other answer choices are incorrect because they do not accurately describe the purpose of the "A" connections in the feed water heater system. Options B, C, and D describe different functions or connections within the overall steam or condensate system, but they are not specifically related to the vacuum maintenance in the feed water heater shell.
Related Questions
#197 A slight vacuum is maintained in the shell of the first stage heater shown in the illustration. The primary reason for the vacuum is to _______________. Illustration SG-0025 #198 Which of the following statements is correct concerning the operation of the level or drain regulator associated with the feed water heater shown in the illustration is correct? Illustration SG-0025 #201 Under normal conditions, the rate of heat transfer in a feed water heater is most greatly affected by the _______________.#202 The unit shown in the illustration is used as the _______________. Illustration SG-0025#203 The feed water heater shown in the illustration is actually comprised of three separately functioning heat exchangers. These heat exchangers are identified as the _ . Illustration SG-0025