MDE 17 End of Unit Quiz

MDE 17 End Of Unit Quiz

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Question 2:
With reference to fluid couplings for the main propulsion shaft, which of the following is an advantage in terms of engine protection?

A) Increased wear on the engine components

D) Complex control mechanisms

C) Automatic slip during overload conditions

B) Reduced power transmission capability

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Question 1:
With reference to fluid couplings, what is a common effect of angular misalignment on the coupling performance?

B) Increased fluid coupling efficiency

A) Improved torque transmission

D) Excessive vibration and potential damage

C) Enhanced cooling of the coupling fluid

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Question 2:
How does angular misalignment impact the life expectancy of a fluid coupling?

A) It increases the life expectancy due to better load distribution

B) It has no effect on the life expectancy

D) It doubles the life expectancy by reducing operational stress

C) It decreases the life expectancy due to increased wear and tear

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Question 4:
To correct angular misalignment in a fluid coupling system, what is a recommended action?

A) Increase the coupling fluid temperature

B) Adjust the alignment of the shafts to the manufacturer’s specifications

C) Increase the coupling speed

D) Replace the fluid coupling with a new one

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Question 2:
What is a potential consequence of increased oil temperature in a fluid coupling system?

A) Decreased risk of cavitation

C) Greater risk of fluid overheating and damage

B) Improved overall system reliability

D) Reduced wear and tear on the impellors

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Question 1:
With reference to fluid couplings for the main propulsion shaft, what is one advantage of using a fluid coupling over a mechanical clutch?

C) Direct mechanical connection between engine and shaft

D) Reduced fuel efficiency

A) Higher maintenance requirements

B) Smooth torque transmission without shock loads

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Question 4:
To mitigate the effects of high oil temperature in a fluid coupling system, what action might be taken?

C) Improve the cooling system to manage oil temperature

A) Increase the speed of the input shaft

B) Reduce the flow rate of the cooling fluid

D) Use a higher-viscosity oil

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Question 5:
What is a common feature of the housing in a fluid coupling?

A) It contains the fuel injection system

D) It serves as a cooling fan for the engine

B) It provides a sealed environment for the coupling fluid

C) It regulates the engine speed

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Question 3:
How might increased oil temperature affect the fluid coupling's torque transmission capability?

D) It will double the torque transmission capability

C) It will have no effect on torque transmission capability

A) It will increase torque transmission capability due to reduced fluid resistance

B) It will decrease torque transmission capability due to reduced fluid viscosity

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Question 3:
What is a likely consequence of angular misalignment in a fluid coupling system in terms of efficiency?

D) Increased fluid efficiency due to better alignment

B) Decreased operational efficiency due to uneven torque distribution

A) Increased operational efficiency due to balanced load

C) No change in operational efficiency

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Question 3:
With reference to fluid couplings for the main propulsion shaft, what is an advantage regarding vibration damping?

B) Enhanced vibration damping capability

A) Increased vibration transmission to the shaft

D) Increased risk of engine stall

C) Reduced overall system efficiency

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Question 3:
Which component in a fluid coupling helps to maintain a controlled amount of coupling fluid and manage its flow?

C) Gearbox

A) Stator

D) Hydraulic pump

B) Impeller

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