Question 52Motor Plants - Assistant Engineer

The correct answer is B) stop fuel delivery to the injector. The component identified as item No. 15 in the illustration MO-0016 is a fuel shutoff valve, which is used to stop the fuel delivery to the injector when the engine is not running or during certain emergency situations. This allows the engine to be shut down quickly and safely. The other answer choices are incorrect because they do not accurately describe the function of the fuel shutoff valve. A) is incorrect as it describes the function of a fuel injector pressure tester, C) is incorrect as it describes the function of a fuel pump timing adjustment, and D) is incorrect as it describes the function of a fuel pump delivery pressure regulator.