MDE 7 Q1

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Question 4: What happens to the centrifugal overspeed trip mechanism if the engine speed returns to normal after an overspeed condition?

C) The trip mechanism requires a complete engine shutdown for reset

A) The trip mechanism remains engaged until manually reset

D) The mechanism continues to trip intermittently

B) The trip mechanism automatically resets once the speed decreases

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Question 2: How does a centrifugal overspeed trip mechanism operate?

D) It uses an electronic sensor to monitor engine speed and trigger an alarm

B) It employs a spring-loaded valve to control fuel flow

C) It relies on centrifugal force to actuate a trip mechanism that stops the engine when a certain speed is exceeded

A) It uses a hydraulic piston to regulate engine speed

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Question 1: What is the primary purpose of an overspeed trip of the centrifugal type in a diesel engine?

A) To regulate the engine fuel supply

B) To monitor the engine temperature

D) To measure the engine’s oil pressure

C) To prevent engine damage by stopping the engine if it exceeds a predetermined speed

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Question 3: What component of the centrifugal overspeed trip mechanism is responsible for detecting excessive engine speed?

A) The temperature sensor

D) The crankshaft position sensor

B) The centrifugal governor

C) The fuel injection pump

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Question 5: Which of the following is a common maintenance check for the centrifugal overspeed trip mechanism?

A) Checking the engine coolant level

C) Replacing the engine oil filter

B) Inspecting the condition of the centrifugal weights and springs

D) Calibrating the turbocharger pressure

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