Question 313Motor Plants - Assistant Engineer
70% to passThe purpose of the interlocked three-way valve shown in the illustration is to_______________. Illustration MO-0058
Arecirculate fuel through the heater during warm-up
Bcontrol the rate of fuel oil flow to the engines
Cact as an emergency fuel shut off, regardless of the fuel being used
Dchange fuel from heavy to light oil or vice versa while insuring that oil is returned to the proper day tank
AI Explanation
The correct answer is D) change fuel from heavy to light oil or vice versa while ensuring that oil is returned to the proper day tank. The purpose of the interlocked three-way valve is to allow the switching of fuel types (heavy to light or vice versa) while ensuring that the fuel being switched away from is properly returned to its designated day tank. This prevents the inadvertent mixing of fuel types, which could damage the engines. The other options are incorrect because they do not fully capture the valve's primary function of facilitating fuel type changes while maintaining proper fuel routing.
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