Question 6Steam Plants - Assistant Engineer
70% to passValve "H" shown in the illustration, functions to _. Illustration SG-0009
Aprevent a backflow from the manifold
Brecirculate fuel oil during start-up
Cregulate the amount of fuel burned
Dprovide a quick shut off of fuel to the boiler
AI Explanation
The correct answer is D) provide a quick shut off of fuel to the boiler. Valve "H" in the illustration is a fuel shut-off valve, which functions to quickly stop the flow of fuel to the boiler in case of an emergency or malfunction. This is an important safety feature to prevent potential fire or explosion hazards. The other answer choices are incorrect because they do not accurately describe the primary function of this particular valve. Valve "H" is not primarily used for preventing backflow, recirculating fuel during start-up, or regulating the amount of fuel burned.
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