MDE 7 Q6

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10. Lube Oil Filter Differential Pressure Gauge

Question: What is the purpose of a differential pressure gauge on the lube oil filter in a propulsion engine?

B) To monitor the pressure difference across the filter and indicate when it needs cleaning or replacement

C) To regulate the flow rate of the lube oil

D) To increase the engine’s power output

A) To measure the oil’s viscosity

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8. Gearbox Temperature Sensor

Question: What is the role of a gearbox temperature sensor in a propulsion engine arrangement?

A) To control the gearbox oil level

D) To ensure smooth gear changes

B) To detect excessive heat that could damage the gearbox components

C) To monitor the gearbox speed

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2. High-Temperature Alarm

Question: Why is a high-temperature alarm fitted to the cooling system of a propulsion engine?

D) To monitor the fuel temperature

C) To ensure the gearbox remains properly lubricated

B) To alert the crew of excessive engine temperature that could cause overheating and damage

A) To prevent the engine from running too cold

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9. Propeller Shaft Bearing Temperature Sensor

Question: Why is a temperature sensor fitted to the propeller shaft bearing?

B) To detect overheating in the bearing that could lead to failure

C) To monitor the bearing's rotational speed

A) To maintain the engine’s RPM

D) To adjust the propeller pitch automatically

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3. Overload Clutch

Question: What is the purpose of an overload clutch in a gearbox arrangement?

D) To ensure smooth gear shifting

A) To increase the engine’s fuel efficiency

B) To protect the gearbox from damage due to excessive torque

C) To maintain a constant engine speed

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7. Emergency Stop Button

Question: Why is an emergency stop button fitted to a propulsion engine control system?

A) To reduce fuel consumption during idle periods

C) To enable faster engine startup

D) To maintain engine RPM during high-load conditions

B) To quickly shut down the engine in case of an emergency

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6. Vibration Sensor

Question: What is the purpose of a vibration sensor on a propulsion engine?

B) To monitor and detect abnormal vibrations that could indicate mechanical failure

A) To reduce noise levels in the engine room

C) To ensure the engine operates at the correct speed

D) To regulate the engine temperature

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4. Shaft Brake

Question: Why might a shaft brake be fitted to a propulsion engine?

A) To slow down the engine in an emergency

B) To prevent the propeller from rotating when the engine is stopped

D) To reduce vibration in the engine room

C) To increase fuel efficiency during low-speed operations

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5. Oil Mist Detector

Question: What is the reason for fitting an oil mist detector in a propulsion engine’s crankcase?

D) To ensure the oil is properly filtered

C) To measure the viscosity of the engine oil

A) To monitor the oil level

B) To detect the presence of oil mist that could indicate a crankcase explosion risk

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1. Low Oil Pressure Alarm

Question: What is the primary reason for fitting a low oil pressure alarm to a propulsion engine?

D) To maintain proper engine speed

B) To ensure the engine does not overheat

A) To alert the crew of excessive fuel consumption

C) To warn of inadequate lubrication that could lead to engine damage

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