MDE Unit 19 pneumatic clutch Flashcards

MDE Unit 19 pneumatic clutch

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

B) Pneumatic actuator

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?

A) Temperature sensor

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

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

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

Question 5:
In the context of a reduction gearing and pneumatic clutch system, which device is used to monitor and protect against abnormal vibration?

A) Vibration sensor

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

 

B) By varying the air pressure supplied to the clutch

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?

A) High torque capacity and smooth engagement

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

B) Increased risk of friction pad wear and potential clutch slippage

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

B) Manual override system

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

Question 4:
What is the purpose of the air pressure control system in a pneumatic clutch used in medium-speed main propulsion?

B) To regulate the engagement and disengagement timing of the clutch

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

C) Uneven engagement leading to vibration and potential clutch slippage

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?

 

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

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

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

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

B) Torque limiter

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

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

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

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

 

B) Decreased friction causing slippage and reduced clutch efficiency

Question 3:
What component in an air-operated radial tyre type clutch provides the frictional force necessary for torque transmission?

B) Radial tyres

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
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