MDE 7 Q6

1 / 10

6. Vibration Sensor

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

A) To reduce noise levels in the engine room

D) To regulate the engine temperature

C) To ensure the engine operates at the correct speed

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

2 / 10

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

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

D) To maintain engine RPM during high-load conditions

3 / 10

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

4 / 10

4. Shaft Brake

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

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

A) To slow down the engine in an emergency

5 / 10

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

A) To monitor the oil level

C) To measure the viscosity of the engine oil

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

6 / 10

9. Propeller Shaft Bearing Temperature Sensor

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

D) To adjust the propeller pitch automatically

C) To monitor the bearing's rotational speed

A) To maintain the engine’s RPM

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

7 / 10

2. High-Temperature Alarm

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

A) To prevent the engine from running too cold

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

C) To ensure the gearbox remains properly lubricated

D) To monitor the fuel temperature

8 / 10

3. Overload Clutch

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

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

C) To maintain a constant engine speed

D) To ensure smooth gear shifting

A) To increase the engine’s fuel efficiency

9 / 10

1. Low Oil Pressure Alarm

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

B) To ensure the engine does not overheat

D) To maintain proper engine speed

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

A) To alert the crew of excessive fuel consumption

10 / 10

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?

D) To increase the engine’s power output

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

A) To measure the oil’s viscosity

C) To regulate the flow rate of the lube oil

Your score is