Question 738Steam Plants - Assistant Engineer70% to pass
A contaminated steam generator is used to produce saturated vapor from collected _______________.
AI Explanation
The correct answer is A) fuel oil heating return drains.
Fuel oil heating return drains are commonly used to produce saturated vapor in contaminated steam generators on ships. The fuel oil heating system is used to maintain the proper viscosity of the fuel oil so it can be easily pumped and atomized for combustion. The return drains from this heating system can become contaminated with small amounts of fuel oil, which can then be used as the input to a contaminated steam generator to produce saturated vapor.
The other options are incorrect because condenser cooling water (B), bilge water (C), and sanitary water (D) are not typically routed to a contaminated steam generator for vapor production. These other waste streams would require different treatment methods before being discharged.
Related Questions
#736 The greatest single overall loss of efficiency in a marine propulsion steam plant cycle results from _______________.#737 The purpose of a contaminated steam system is to _______________.#739 If live steam is supplied directly to the tank heating coils; the collected drains in the 'clean' section of the contaminated drain inspection tank are removed directly to the _______________.#740 The contaminated drain system normally receives drains that may be exposed to _______________.#741 Which statement is true concerning drain inspection tanks?