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66. The main engines on your oil platform supply vessel are fitted with speed control governors of the type shown in the illustration. If the shutdown solenoid is de-energized during normal operation, which of the following scenarios depicts the response on a safety shutdown where the shutdown plunger rod moves downward unseating the ball check valve when the shutdown solenoid energizes
Energizing the shutdown solenoid vents oil from the speed-setting servo, allowing the servo spring to drive the servo piston rod upward and the power cylinder tail rod downward to initiate shutdown.
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