MDE 19 End of Unit Quiz

MDE 19 End Of Unit Quiz

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Question 5:
What is the effect of a loss of air pressure in an air-operated radial tyre type clutch?

A) The clutch may become stuck in the engaged position

D) The engine speed will increase

C) The clutch will automatically disengage

B) The engine will automatically shut down

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Question:
With reference to pneumatic clutches used for medium-speed main propulsion purposes, which TWO interlocks are necessary for proper clutch operation?

B) Clutch temperature and air pressure

A) Engine temperature and gearbox oil pressure

D) Clutch disengagement and gearbox alignment

C) Engine speed and brake system status

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Question 3:
What is the purpose of a pressure relief valve in the pneumatic clutch system of a propulsion setup?

D) To lubricate the clutch mechanism

A) To regulate the air temperature

C) To monitor gearbox vibration

B) To prevent air pressure build-up

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Question 1:
With reference to a reduction gearing and pneumatic clutch arrangement of a propulsion system, which of the following is a protection device typically fitted to prevent excessive gearbox temperatures?

B) Pressure relief valve

D) Oil mist detector

A) Temperature sensor

C) Speed governor

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Question 1:
In a diesel engine propulsion system, what is the primary function of an air-operated radial tyre type clutch?

D) To filter contaminants from the engine oil

A) To convert hydraulic power into mechanical power

B) To engage or disengage the engine from the propulsion system

C) To regulate the engine temperature

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Question 3:
How does the release of air pressure affect the operation of a pneumatic clutch?

D) It improves the alignment of the clutch plates

A) It increases the friction between the clutch plates

B) It decreases the engagement force, leading to clutch disengagement

C) It cools down the clutch plates

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Question 4:
Which of the following is a typical advantage of using an air-operated radial tyre type clutch in a diesel engine propulsion system?

D) Enhanced engine cooling

C) Automatic lubrication

A) High torque capacity and smooth engagement

B) Reduced fuel consumption

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Question 2:
In a reduction gearing and pneumatic clutch arrangement, which protection device is commonly used to avoid damage from excessive torque?

A) Clutch slip indicator

D) Gearbox oil filter

B) Torque limiter

C) Air pressure regulator

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Question 2:
How is the engagement of an air-operated radial tyre type clutch typically controlled?

A) By adjusting the engine speed

B) By varying the air pressure supplied to the clutch

C) By monitoring the engine temperature

D) By manually operating a lever

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Question 4:
Which protection device helps to ensure that the pneumatic clutch operates correctly and safely in the event of an air pressure failure?

A) Emergency stop button

C) Oil level sensor

D) Clutch temperature gauge

B) Manual override system

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With reference to pneumatically operated friction clutches, what is the effect of oil contamination on the friction pads?

A) Increased friction leading to smoother operation

C) No effect on clutch performance

D) Increased wear on the clutch disc and pressure plate

B) Decreased friction causing slippage and reduced clutch efficiency

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Question:
With reference to pneumatic clutches used for medium-speed main propulsion purposes, how can the clutch be engaged in the event of a failure of the control system?

C) Engage the clutch using a manual override mechanism or emergency procedure

D) Increase the air pressure to the clutch system to force engagement

A) Manually adjust the clutch plates using a mechanical lever

B) Replace the pneumatic actuator with a hydraulic actuator

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