Question 32Steam Plants - Assistant Engineer

The correct answer is C) between the feed check valve and the boiler drum. The boiler feed stop valve is required to be installed between the feed check valve and the boiler drum to allow for isolation of the boiler in case maintenance or repairs are needed on the feed system. This placement ensures the boiler can be safely taken offline while still maintaining the integrity of the feed system. The other answer choices are incorrect because: A) the feed stop valve should not be placed between the feed pump and feed check valve, as that would bypass the check valve; B) the feed stop valve is not required to be at the engine room platform; and D) the feed stop valve should be upstream of the feed water regulator, not downstream.