Question 15Steam Plants - Assistant Engineer
70% to passA mechanical carbon dioxide recorder operates by detecting the difference between air and the _______________.
Asoot content of the flue gases
Bspecific weight of the flue gases
Ccolor of boiler flue gases
Dtemperature of the flue gases
AI Explanation
The correct answer is B) the specific weight of the flue gases. A mechanical carbon dioxide recorder operates by detecting the difference between the specific weight of the air and the specific weight of the flue gases. This difference in specific weight is used to determine the carbon dioxide content of the flue gases, which is a critical measurement for ensuring proper combustion efficiency. The other answer choices are incorrect because they do not accurately describe the operating principle of a mechanical carbon dioxide recorder. The soot content (A), color (C), and temperature (D) of the flue gases are not directly measured by this type of instrument.
Related Questions
Q242:The primary purpose of a control desuperheater installed in the steam drum of a ... Q43:A main condenser utilizing a scoop for the circulation of sea water must be cons... Q174:Which of the listed conditions can cause high superheater outlet steam temperatu... Q207:In a boiler water gage glass, a ball check valve is installed on the ___________... Q96:Vent condensers are usually an integral part of deaerating feed heaters and serv...
Ready to test your knowledge?
Take a Steam Plants - Assistant Engineer Practice ExamOfficial Resources