MDE 19 End of Unit Quiz

MDE 19 End Of Unit Quiz

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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?

D) Oil mist detector

C) Speed governor

A) Temperature sensor

B) Pressure relief valve

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

D) Increased wear on the clutch disc and pressure plate

C) No effect on clutch performance

B) Decreased friction causing slippage and reduced clutch efficiency

A) Increased friction leading to smoother operation

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Question:
With reference to pneumatically operated friction clutches, what is the effect of distorted friction pads?

A) Improved clutch engagement and reduced slippage

C) Uneven engagement leading to vibration and potential clutch slippage

D) Enhanced power transmission and increased efficiency

B) Increased clutch life and smoother operation

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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:
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?

A) Manually adjust the clutch plates using a mechanical lever

B) Replace the pneumatic actuator with a hydraulic actuator

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

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

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Question 1:
With reference to pneumatic clutches used for medium-speed main propulsion purposes, what is the primary function of the pneumatic system in the clutch operation?

C) To cool the clutch plates and prevent overheating

A) To provide lubrication to the clutch plates

D) To adjust the speed of the engine directly

B) To engage and disengage the clutch by controlling the air pressure

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Question:
With reference to pneumatically operated friction clutches, what is the effect of reduced air pressure?

B) Decreased engagement force causing incomplete clutch engagement or slippage

A) Increased engagement force leading to smoother clutch operation

D) Improved clutch performance and responsiveness

C) No impact on clutch performance

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

C) The clutch will automatically disengage

A) The clutch may become stuck in the engaged position

D) The engine speed will increase

B) The engine will automatically shut down

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Question 2:
In a pneumatic clutch system, what component is primarily responsible for applying the clamping force to the clutch plates?

D) Flywheel

A) Air compressor

B) Pneumatic actuator

C) Torque converter

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

B) To prevent air pressure build-up

C) To monitor gearbox vibration

D) To lubricate the clutch mechanism

A) To regulate the air temperature

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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?

D) Gearbox oil filter

C) Air pressure regulator

B) Torque limiter

A) Clutch slip indicator

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

C) It cools down the clutch plates

D) It improves the alignment of the clutch plates

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

A) It increases the friction between the clutch plates

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